About Selecting Shock Absorbers
To select the best shock absorber for your application, you need to find the energy capacity your application requires. Use this formula to calculate the energy capacity required to stop a horizontal-moving load. For example, if you have a 250-lb. load moving at 25 inches per second, your calculation is (250 lbs. ÷ 772) × 252 = 202.4 in.-lbs. energy capacity.
Note: Choose a shock absorber with a higher energy capacity than you calculated. Factors such as driving force or an inclined surface will increase the energy capacity required.
Energy Capacity (in.-lbs.) = (Weight, lbs./772) × Velocity2 (in. per second)
Linear Speed Limiters
Put an end to lids and doors that slam shut or fly open—install these speed limiters for smooth, controlled motion. For speed limiters with adjustable resistance, pull the rod until it's fully extended, then twist it to change the resistance.
A cycle is one rod stroke from extended to compressed and back to extended. Free travel of stroke is the percentage of the stroke that speed limiters move with no resistance, before speed control engages.
Compression speed limiters prevent closing doors from slamming.
Extension speed limiters prevent doors from flying open.
Compression and extension speed limiters prevent doors from slamming and flying open.
For technical drawings and 3-D models, click on a part number.
Rod | Ball Stud | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stroke Lg. | Extended Lg. | Compressed Lg. | Max. Force, lbs. | Free Travel of Stroke | Max. Cycles per Minute | Rod Material | Body Material | Body Dia. | Dia. | Thread Size  | Thread Pitch, mm | Dia., mm | Lg. | Thread Lg. | Thread Size | Thread Pitch, mm | Each | |
Compression | ||||||||||||||||||
Variable Adjustment | ||||||||||||||||||
| 1" | 5.3" | 4.3" | 112 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.59" | 0.24" | M5 | 0.8 | 13 | 0.97" | 0.35" | M5 | 0.8 | 0000000 | 0000000 |
| 2" | 7.3" | 5.3" | 112 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.59" | 0.24" | M5 | 0.8 | 13 | 0.97" | 0.35" | M5 | 0.8 | 0000000 | 000000 |
| 2" | 8.3" | 6.3" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.87" | 0.31" | M8 | 1.25 | 20 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 3" | 9.2" | 6.3" | 112 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.59" | 0.24" | M5 | 0.8 | 13 | 0.97" | 0.35" | M5 | 0.8 | 0000000 | 000000 |
| 3.9" | 12.2" | 8.3" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.87" | 0.31" | M8 | 1.25 | 20 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 3.9" | 12.6" | 8.7" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.1" | 0.39" | M8 | 1.25 | 20 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 5.9" | 16.1" | 10.2" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.87" | 0.31" | M8 | 1.25 | 20 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 5.9" | 16.5" | 10.6" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.1" | 0.39" | M8 | 1.25 | 20 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 7.9" | 20.5" | 12.6" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.1" | 0.39" | M8 | 1.25 | 20 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 7.9" | 22.2" | 14.4" | 720 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.57" | 0.55" | M14 | 1.5 | 30 | 2.48" | 1.1" | M14 | 1.5 | 0000000 | 000000 |
| 9.8" | 24.4" | 14.6" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.1" | 0.39" | M8 | 1.25 | 20 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 11.8" | 28.3" | 16.5" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.1" | 0.39" | M8 | 1.25 | 20 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 11.8" | 30.1" | 18.3" | 720 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.57" | 0.55" | M14 | 1.5 | 30 | 2.48" | 1.1" | M14 | 1.5 | 0000000 | 000000 |
Fixed | ||||||||||||||||||
| 2" | 7.9" | 5.9" | 50 | 30% | 6 | Black-Nitride Steel | Electrocoated Steel | 0.59" | 0.25" | M6 | 1 | 10 | 1.28" | 0.55" | 5/16"-18 | __ | 0000000 | 00000 |
| 3" | 10" | 7" | 50 | 30% | 6 | Black-Nitride Steel | Electrocoated Steel | 0.59" | 0.25" | M6 | 1 | 10 | 1.28" | 0.55" | 5/16"-18 | __ | 0000000 | 00000 |
| 4" | 12.2" | 8.2" | 100 | 30% | 6 | Black-Nitride Steel | Electrocoated Steel | 0.87" | 0.32" | M6 | 1 | 10 | 1.28" | 0.55" | 5/16"-18 | __ | 0000000 | 00000 |
| 4" | 12.5" | 8.5" | 50 | 30% | 6 | Black-Nitride Steel | Electrocoated Steel | 0.59" | 0.25" | M6 | 1 | 10 | 1.28" | 0.55" | 5/16"-18 | __ | 0000000 | 00000 |
| 5" | 14.5" | 9.5" | 100 | 30% | 6 | Black-Nitride Steel | Electrocoated Steel | 0.87" | 0.32" | M6 | 1 | 10 | 1.28" | 0.55" | 5/16"-18 | __ | 0000000 | 00000 |
| 5" | 15" | 10" | 50 | 30% | 6 | Black-Nitride Steel | Electrocoated Steel | 0.59" | 0.25" | M6 | 1 | 10 | 1.28" | 0.55" | 5/16"-18 | __ | 0000000 | 00000 |
| 6" | 17" | 11" | 100 | 30% | 6 | Black-Nitride Steel | Electrocoated Steel | 0.87" | 0.32" | M6 | 1 | 10 | 1.28" | 0.55" | 5/16"-18 | __ | 0000000 | 00000 |
| 7" | 19.7" | 12.7" | 100 | 30% | 6 | Black-Nitride Steel | Electrocoated Steel | 0.87" | 0.32" | M6 | 1 | 10 | 1.28" | 0.55" | 5/16"-18 | __ | 0000000 | 00000 |
Extension | ||||||||||||||||||
Variable Adjustment | ||||||||||||||||||
| 1" | 5.3" | 4.3" | 112 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.59" | 0.24" | M5 | 0.8 | 13 | 0.97" | 0.35" | M5 | 0.8 | 0000000 | 000000 |
| 2" | 7.3" | 5.3" | 112 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.59" | 0.24" | M5 | 0.8 | 13 | 0.97" | 0.35" | M5 | 0.8 | 0000000 | 000000 |
| 2" | 8.3" | 6.3" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.87" | 0.31" | M8 | 1.25 | 20 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 3" | 9.2" | 6.3" | 112 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.59" | 0.24" | M5 | 0.8 | 13 | 0.97" | 0.35" | M5 | 0.8 | 0000000 | 000000 |
| 3.9" | 12.2" | 8.3" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.87" | 0.31" | M8 | 1.25 | 20 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 5.9" | 16.1" | 10.2" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.87" | 0.31" | M8 | 1.25 | 20 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 5.9" | 16.5" | 10.6" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.1" | 0.39" | M8 | 1.25 | 20 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 7.9" | 20.5" | 12.6" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.1" | 0.39" | M8 | 1.25 | 20 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 7.9" | 22.2" | 14.4" | 720 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.57" | 0.55" | M14 | 1.5 | 30 | 2.48" | 1.1" | M14 | 1.5 | 0000000 | 000000 |
| 9.8" | 24.4" | 14.6" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.1" | 0.39" | M8 | 1.25 | 20 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 11.8" | 28.3" | 16.5" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.1" | 0.39" | M8 | 1.25 | 20 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 11.8" | 30.1" | 18.3" | 720 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.57" | 0.55" | M14 | 1.5 | 30 | 2.48" | 1.1" | M14 | 1.5 | 0000000 | 000000 |
Fixed | ||||||||||||||||||
| 2" | 7.9" | 5.9" | 50 | 30% | 6 | Black-Nitride Steel | Electrocoated Steel | 0.59" | 0.25" | M6 | 1 | 10 | 1.28" | 0.55" | 5/16"-18 | __ | 0000000 | 00000 |
| 3" | 10" | 7" | 50 | 30% | 6 | Black-Nitride Steel | Electrocoated Steel | 0.59" | 0.25" | M6 | 1 | 10 | 1.28" | 0.55" | 5/16"-18 | __ | 0000000 | 00000 |
| 4" | 12.2" | 8.2" | 100 | 30% | 6 | Black-Nitride Steel | Electrocoated Steel | 0.87" | 0.32" | M6 | 1 | 10 | 1.28" | 0.55" | 5/16"-18 | __ | 0000000 | 00000 |
| 4" | 12.5" | 8.5" | 50 | 30% | 6 | Black-Nitride Steel | Electrocoated Steel | 0.59" | 0.25" | M6 | 1 | 10 | 1.28" | 0.55" | 5/16"-18 | __ | 0000000 | 00000 |
| 5" | 14.5" | 9.5" | 100 | 30% | 6 | Black-Nitride Steel | Electrocoated Steel | 0.87" | 0.32" | M6 | 1 | 10 | 1.28" | 0.55" | 5/16"-18 | __ | 0000000 | 00000 |
| 5" | 15" | 10" | 50 | 30% | 6 | Black-Nitride Steel | Electrocoated Steel | 0.59" | 0.25" | M6 | 1 | 10 | 1.28" | 0.55" | 5/16"-18 | __ | 0000000 | 00000 |
| 6" | 17" | 11" | 100 | 30% | 6 | Black-Nitride Steel | Electrocoated Steel | 0.87" | 0.32" | M6 | 1 | 10 | 1.28" | 0.55" | 5/16"-18 | __ | 0000000 | 00000 |
| 7" | 19.7" | 12.7" | 100 | 30% | 6 | Black-Nitride Steel | Electrocoated Steel | 0.87" | 0.32" | M6 | 1 | 10 | 1.28" | 0.55" | 5/16"-18 | __ | 0000000 | 00000 |
Compression and Extension | ||||||||||||||||||
Variable Adjustment | ||||||||||||||||||
| 1" | 5.3" | 4.3" | 112 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.59" | 0.24" | M5 | 0.8 | 8 | 0.97" | 0.35" | M5 | 0.8 | 0000000 | 000000 |
| 2" | 7.3" | 5.3" | 112 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.59" | 0.24" | M5 | 0.8 | 8 | 0.97" | 0.35" | M5 | 0.8 | 0000000 | 000000 |
| 2" | 8.2" | 6.3" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.87" | 0.31" | M8 | 1.25 | 13 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 3" | 9.3" | 6.3" | 112 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.59" | 0.24" | M5 | 0.8 | 8 | 0.97" | 0.35" | M5 | 0.8 | 0000000 | 000000 |
| 3.9" | 12.2" | 8.3" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.87" | 0.31" | M8 | 1.25 | 13 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 3.9" | 12.6" | 8.7" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.1" | 0.39" | M8 | 1.25 | 13 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 5.9" | 16.1" | 10.2" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 0.87" | 0.31" | M8 | 1.25 | 13 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 5.9" | 16.5" | 10.6" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.1" | 0.39" | M8 | 1.25 | 13 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 7.9" | 20.4" | 12.6" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.1" | 0.39" | M8 | 1.25 | 13 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 7.9" | 22.2" | 14.4" | 720 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.57" | 0.55" | M14 | 1.5 | 19.5 | 2.48" | 1.1" | M14 | 1.5 | 0000000 | 000000 |
| 9.8" | 24.4" | 14.6" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.1" | 0.39" | M8 | 1.25 | 13 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 11.8" | 28.3" | 16.5" | 270 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.1" | 0.39" | M8 | 1.25 | 13 | 1.52" | 0.65" | M8 | 1.25 | 0000000 | 000000 |
| 11.8" | 30.1" | 18.3" | 720 | 20% | Not Rated | Chrome-Plated Steel | Anodized Aluminum | 1.57" | 0.55" | M14 | 1.5 | 19.5 | 2.48" | 1.1" | M14 | 1.5 | 0000000 | 000000 |
Corrosion-Resistant Linear Speed Limiters
Smoothly open and close doors, lids, and access panels in damp and corrosive environments with these 316 stainless steel speed limiters.
A cycle is one rod stroke from extended to compressed and back to extended. Free travel of stroke is the percentage of the stroke that speed limiters move with no resistance, before speed control engages.
Compression speed limiters prevent closing doors from slamming.
Extension speed limiters prevent doors from flying open.
Compression and extension speed limiters prevent doors from slamming and flying open.
For technical drawings and 3-D models, click on a part number.
Rod | Ball Stud | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stroke Lg. | Extended Lg. | Compressed Lg. | Max. Force, lbs. | Free Travel of Stroke | Max. Cycles per Minute | Body Dia. | Material | Dia. | Thread Size | Thread Pitch, mm | Dia. | Lg. | Thread Lg. | Thread Size | Temp. Range, °F | Each | |
Compression | |||||||||||||||||
Fixed | |||||||||||||||||
| 2" | 7.9" | 5.9" | 150 | 35% | 6 | 0.59" | Chrome-Plated 316 Stainless Steel | 0.25" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 000000 |
| 3" | 10" | 7" | 150 | 31% | 6 | 0.59" | Chrome-Plated 316 Stainless Steel | 0.25" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 00000 |
| 4" | 12.2" | 8.2" | 250 | 32% | 6 | 0.71" | Chrome-Plated 316 Stainless Steel | 0.32" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 00000 |
| 4" | 12.5" | 8.5" | 150 | 28% | 6 | 0.59" | Chrome-Plated 316 Stainless Steel | 0.25" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 00000 |
| 5" | 14.5" | 9.5" | 250 | 31% | 6 | 0.71" | Chrome-Plated 316 Stainless Steel | 0.32" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 00000 |
| 7" | 19.7" | 12.7" | 250 | 29% | 6 | 0.71" | Chrome-Plated 316 Stainless Steel | 0.32" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 00000 |
Extension | |||||||||||||||||
Fixed | |||||||||||||||||
| 3" | 10" | 7" | 150 | 31% | 6 | 0.59" | Chrome-Plated 316 Stainless Steel | 0.25" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 00000 |
| 4" | 12.2" | 8.2" | 250 | 32% | 6 | 0.71" | Chrome-Plated 316 Stainless Steel | 0.32" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 00000 |
| 4" | 12.5" | 8.5" | 150 | 28% | 6 | 0.59" | Chrome-Plated 316 Stainless Steel | 0.25" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 00000 |
| 5" | 15" | 10" | 150 | 27% | 6 | 0.59" | Chrome-Plated 316 Stainless Steel | 0.25" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 00000 |
| 7" | 19.7" | 12.7" | 250 | 29% | 6 | 0.71" | Chrome-Plated 316 Stainless Steel | 0.32" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 00000 |
Compression and Extension | |||||||||||||||||
Fixed | |||||||||||||||||
| 2" | 7.9" | 5.9" | 150 | 35% | 6 | 0.59" | Chrome-Plated 316 Stainless Steel | 0.25" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 00000 |
| 3" | 10" | 7" | 150 | 31% | 6 | 0.59" | Chrome-Plated 316 Stainless Steel | 0.25" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 00000 |
| 4" | 12.2" | 8.2" | 250 | 32% | 6 | 0.71" | Chrome-Plated 316 Stainless Steel | 0.32" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 00000 |
| 5" | 14.5" | 9.5" | 250 | 31% | 6 | 0.71" | Chrome-Plated 316 Stainless Steel | 0.32" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 00000 |
| 5" | 15" | 10" | 150 | 27% | 6 | 0.59" | Chrome-Plated 316 Stainless Steel | 0.25" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 00000 |
| 6" | 17" | 11" | 250 | 30% | 6 | 0.71" | Chrome-Plated 316 Stainless Steel | 0.32" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 00000 |
| 7" | 19.7" | 12.7" | 250 | 29% | 6 | 0.71" | Chrome-Plated 316 Stainless Steel | 0.32" | M6 | 1 | 0.39" | 1.2" | 0.54" | 5/16"-18 | -20° to 170° | 0000000 | 00000 |
Precise-Control Linear Speed Limiters
Regulate the speed or feed rate of drill presses, milling machines, lathes, and similar devices. These speed limiters have a knob with numbered scale so you can make precise adjustments to the resistance. Insert a rod in the mounting hole in the knob to rotate for adjustments.
A cycle is one rod stroke from extended to compressed and back to the original extended position. Free travel of stroke is 0%, so the entire stroke is speed controlled.
For technical drawings and 3-D models, click on a part number.
Rod | Body | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stroke Lg. | Extended Lg. | Compressed Lg. | Max. Force, lbs. | Max. Cycles per Minute | Material | Dia. | Seal Material | Material | Dia. | Adjustment Hole Dia. | Temp. Range, ° F | Each | |
Compression | |||||||||||||
Variable Adjustment | |||||||||||||
| 0.5" | 6.33" | 5.83" | 1,200 | Not Rated | Stainless Steel | 0.31" | Neoprene Rubber | Zinc-Plated Steel | 0.94" | 0.31" | 40° to 135° | 000000 | 0000000 |
| 1" | 7.83" | 6.83" | 1,200 | Not Rated | Stainless Steel | 0.31" | Neoprene Rubber | Zinc-Plated Steel | 0.94" | 0.31" | 40° to 135° | 000000 | 000000 |
| 2" | 10.87" | 8.87" | 1,200 | Not Rated | Stainless Steel | 0.31" | Neoprene Rubber | Zinc-Plated Steel | 0.94" | 0.31" | 40° to 135° | 000000 | 000000 |
| 3" | 13.87" | 10.87" | 1,200 | Not Rated | Stainless Steel | 0.31" | Neoprene Rubber | Zinc-Plated Steel | 0.94" | 0.31" | 40° to 135° | 000000 | 000000 |
| Wd. | Ht. | Dp. | Material | Mount. Hole Dia. | Ctr.-to-Ctr. Mount. Hole Ht. | Each | |
| 1 1/4" | 2 1/4" | 1 1/4" | Aluminum | 0.39" | 1.44" | 0000000 | 000000 |
Self-Adjusting Shock Absorbers
Accommodate changing loads and energy without manual adjustment. Shock absorbers counteract the energy of moving objects to prevent damage to equipment and material. They're often used in gantry systems, presses, and at stops along conveyors. Mounting nuts are included. Mounting Blocks for Shock Absorbers are sold separately.
Nylon and urethane rubber bumpers are nonmarring.
Aluminum bumpers are nonmagnetic.
For technical drawings and 3-D models, click on a part number.
Body | Bumper | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Energy Cap., in.-lbs. | Max. Cycles per Minute | Stroke Lg. | Extended Lg. | Compressed Lg. | Dia. | Thread Size | Thread Pitch, mm | Body Material | Rod Dia. | Dia. | Material | Each | |
Threaded-Body Mount | |||||||||||||
Inch | |||||||||||||
| 20 | 167 | 0.26" | 2.27" | 2.01" | 0.375" | 3/8"-32 | __ | Black-Oxide Steel | 0.13" | 0.3" | Steel | 0000000 | 000000 |
| 75 | 56 | 0.4" | 2.76" | 2.36" | 0.5" | 1/2"-20 | __ | Black-Oxide Steel | 0.13" | 0.3" | Steel | 0000000 | 00000 |
| 123 | 41 | 0.5" | 3.66" | 3.16" | 0.563" | 9/16"-18 | __ | Black-Oxide Steel | 0.19" | 0.47" | Nylon | 0000000 | 000000 |
| 225 | 22 | 0.63" | 4.5" | 3.87" | 0.563" | 9/16"-18 | __ | Black-Oxide Steel | 0.16" | 0.47" | Steel | 0000000 | 00000 |
| 288 | 23 | 0.5" | 4.07" | 3.57" | 0.75" | 3/4"-16 | __ | Black-Oxide Steel | 0.25" | 0.66" | Nylon | 0000000 | 000000 |
| 300 | 22 | 0.75" | 4.62" | 3.87" | 0.75" | 3/4"-16 | __ | Black-Oxide Steel | 0.19" | 0.66" | Steel | 0000000 | 00000 |
| 360 | 19 | 0.5" | 3.81" | 3.31" | 0.75" | 3/4"-16 | __ | Black-Oxide Steel | 0.25" | __ | __ | 00000000 | 000000 |
| 600 | 17 | 1" | 5.76" | 4.76" | 1" | 1"-12 | __ | Black-Oxide Steel | 0.31" | 0.9" | Nylon | 0000000 | 000000 |
| 620 | 11 | 0.59" | 4.15" | 3.56" | 0.75" | 3/4"-16 | __ | Black-Oxide Steel | 0.25" | 0.66" | Steel | 000000 | 000000 |
| 650 | 10 | 0.59" | 4.15" | 3.56" | 0.75" | 3/4"-16 | __ | Black-Oxide Steel | 0.25" | 0.66" | Steel | 00000000 | 000000 |
| 650 | 15 | 1" | 5.62" | 4.62" | 1" | 1"-12 | __ | Black-Oxide Steel | 0.25" | 0.9" | Steel | 0000000 | 000000 |
| 975 | 14 | 1.58" | 7.44" | 5.86" | 1" | 1"-12 | __ | Black-Oxide Steel | 0.25" | 0.9" | Steel | 000000 | 000000 |
| 1,860 | 5 | 0.91" | 5.51" | 4.6" | 1" | 1"-12 | __ | Black-Oxide Steel | 0.38" | 0.9" | Steel | 000000 | 000000 |
| 5,000 | 10 | 2" | 8.25" | 6.25" | 1.375" | 1 3/8"-12 | __ | Black-Oxide Steel | 0.34" | 0.63" | Aluminum | 0000000 | 000000 |
Metric | |||||||||||||
| 9 | 33 | 0.2" | 1.22" | 1.02" | 0.24" | M6 | 0.5 | Black-Oxide Steel | 0.08" | __ | __ | 0000000 | 00000 |
| 11 | 53 | 0.2" | 1.52" | 1.32" | 0.31" | M8 | 0.75 | Black-Oxide Steel | 0.08" | 0.19" | Acetal | 0000000 | 00000 |
| 11 | 53 | 0.2" | 1.52" | 1.32" | 0.31" | M8 | 1 | Black-Oxide Steel | 0.08" | 0.19" | Acetal | 0000000 | 00000 |
| 17 | 70 | 0.24" | 1.97" | 1.73" | 0.31" | M8 | 1 | Black-Oxide Steel | 0.08" | 0.26" | Urethane Rubber | 00000000 | 00000 |
| 20 | 167 | 0.26" | 2.27" | 2.01" | 0.39" | M10 | 1 | Black-Oxide Steel | 0.13" | 0.3" | Steel | 0000000 | 00000 |
| 35 | 63 | 0.31" | 2.24" | 1.93" | 0.39" | M10 | 1 | Black-Oxide Steel | 0.1" | 0.34" | Urethane Rubber | 00000000 | 00000 |
| 44 | 59 | 0.39" | 2.74" | 2.35" | 0.48" | M12 | 1 | Black-Oxide Steel | 0.12" | 0.41" | Urethane Rubber | 00000000 | 00000 |
| 75 | 56 | 0.4" | 2.76" | 2.36" | 0.48" | M12 | 1 | Black-Oxide Steel | 0.13" | 0.3" | Steel | 0000000 | 00000 |
| 100 | 10 | 0.25" | 2.75" | 2.5" | 0.55" | M14 | 1.5 | Black-Oxide Steel | 0.15" | 0.25" | Aluminum | 0000000 | 000000 |
| 123 | 41 | 0.5" | 3.66" | 3.16" | 0.55" | M14 | 1 | Black-Oxide Steel | 0.19" | 0.47" | Nylon | 0000000 | 000000 |
| 142 | 31 | 0.39" | 3.62" | 3.22" | 0.48" | M12 | 1 | Black-Oxide Steel | 0.15" | __ | __ | 00000000 | 000000 |
| 175 | 29 | 0.5" | 3.41" | 2.91" | 0.55" | M14 | 1.5 | Black-Oxide Steel | 0.19" | __ | __ | 00000000 | 000000 |
| 175 | 34 | 0.5" | 3.41" | 2.91" | 0.55" | M14 | 1.5 | Black-Oxide Steel | 0.19" | __ | __ | 00000000 | 000000 |
| 200 | 10 | 0.5" | 3.75" | 3.25" | 0.78" | M20 | 1.5 | Black-Oxide Steel | 0.15" | 0.25" | Aluminum | 0000000 | 000000 |
| 225 | 22 | 0.63" | 4.5" | 3.87" | 0.55" | M14 | 1.5 | Black-Oxide Steel | 0.16" | 0.47" | Steel | 0000000 | 00000 |
| 250 | 26 | 1" | 4.75" | 3.75" | 0.98" | M25 | 1.5 | Black-Oxide Steel | 0.19" | 0.38" | Aluminum | 0000000 | 000000 |
| 274 | 27 | 0.47" | 3.7" | 3.22" | 0.55" | M14 | 1.5 | Black-Oxide Steel | 0.19" | __ | __ | 00000000 | 000000 |
| 288 | 23 | 0.5" | 4.07" | 3.57" | 0.78" | M20 | 1.5 | Black-Oxide Steel | 0.25" | 0.66" | Nylon | 0000000 | 000000 |
| 300 | 22 | 0.75" | 4.62" | 3.87" | 0.78" | M20 | 1.5 | Black-Oxide Steel | 0.19" | 0.66" | Steel | 0000000 | 00000 |
| 360 | 19 | 0.5" | 3.81" | 3.31" | 0.78" | M20 | 1.5 | Black-Oxide Steel | 0.25" | __ | __ | 00000000 | 000000 |
| 600 | 17 | 1" | 5.76" | 4.76" | 0.98" | M25 | 1.5 | Black-Oxide Steel | 0.31" | 0.9" | Nylon | 0000000 | 000000 |
| 650 | 10 | 1" | 4.75" | 3.75" | 0.98" | M25 | 1.5 | Black-Oxide Steel | 0.19" | 0.38" | Aluminum | 0000000 | 000000 |
| 650 | 15 | 1" | 5.62" | 4.62" | 0.98" | M25 | 1.5 | Black-Oxide Steel | 0.25" | 0.9" | Steel | 0000000 | 000000 |
| 690 | 15 | 1" | 5.93" | 4.93" | 1.06" | M27 | 3 | Black-Oxide Steel | 0.31" | 0.89" | Urethane Rubber | 00000000 | 000000 |
| 1,860 | 5 | 0.91" | 5.51" | 4.6" | 0.98" | M25 | 1.5 | Black-Oxide Steel | 0.38" | 0.9" | Steel | 00000000 | 000000 |
| 2,000 | 10 | 1" | 5.25" | 4.25" | 1.3" | M33 | 1.5 | Black-Oxide Steel | 0.28" | 0.5" | Aluminum | 0000000 | 000000 |
| 5,000 | 10 | 2" | 8.25" | 6.25" | 1.42" | M36 | 1.5 | Black-Oxide Steel | 0.34" | 0.63" | Aluminum | 0000000 | 000000 |
Corrosion-Resistant Self-Adjusting Shock Absorbers
Made from stainless steel for excellent corrosion resistance in damp environments. Install shock absorbers in gantry systems, presses, and at stops along conveyors—they counteract the energy of moving objects to prevent damage to equipment and material. Use Mounting Blocks for Shock Absorbers (not included) and Mounting Nuts for Shock Absorbers (not included) for mounting.
For technical drawings and 3-D models, click on a part number.
Body | Rod | Bumper | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Energy Cap., in.-lbs. | Max. Cycles per Minute | Stroke Lg. | Extended Lg. | Compressed Lg. | Dia. | Thread Size | Material | Dia. | Material | Dia. | Material | Each | |
Threaded-Body Mount | |||||||||||||
| 100 | 10 | 0.25" | 2.75" | 2.5" | 0.56" | 9/16"-18 | Stainless Steel | 0.15" | Stainless Steel | 0.25" | Stainless Steel | 000000 | 0000000 |
| 200 | 10 | 0.5" | 3.75" | 3.25" | 0.75" | 3/4"-16 | Stainless Steel | 0.15" | Stainless Steel | 0.25" | Stainless Steel | 000000 | 000000 |
| 250 | 27 | 1" | 4.75" | 3.75" | 1" | 1"-12 | Stainless Steel | 0.19" | Stainless Steel | 0.38" | Stainless Steel | 000000 | 000000 |
| 650 | 10 | 1" | 4.75" | 3.75" | 1" | 1"-12 | Stainless Steel | 0.19" | Stainless Steel | 0.38" | Stainless Steel | 000000 | 000000 |
| 2,000 | 10 | 1" | 5.25" | 4.25" | 1.25" | 1 1/4"-12 | Stainless Steel | 0.28" | Stainless Steel | 0.5" | Stainless Steel | 000000 | 000000 |
| 5,000 | 10 | 2" | 8.25" | 6.25" | 1.38" | 1 3/8"-12 | Stainless Steel | 0.34" | Stainless Steel | 0.63" | Stainless Steel | 000000 | 000000 |
Leak-Resistant Adjustable Shock Absorbers
An airtight seal prevents leaks and protects moving parts from dust to minimize wear for a long service life. These shock absorbers decelerate fast-moving equipment without bang or bounce to prevent damage to equipment and material. Turn the knob to change deceleration to suit varying loads and speeds.
For technical drawings and 3-D models, click on a part number.
Body | Rod | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Energy Cap., in.-lbs. | Max. Cycles per Minute | Stroke Lg. | Extended Lg. | Compressed Lg. | Dia. | Material | Dia. | Rod Material | Temp. Range, ° F | Mount Type | Each | |
Variable Adjustment | ||||||||||||
| 400 | 23 | 0.5" | 6.33" | 5.83" | 0.94" | Steel | 0.312" | Stainless Steel | 40° to 130° | Mounting Block | 0000000 | 0000000 |
| 800 | 12 | 1" | 7.83" | 6.83" | 0.94" | Steel | 0.312" | Stainless Steel | 40° to 130° | Mounting Block | 0000000 | 000000 |
| 1,600 | 7 | 2" | 10.87" | 8.87" | 0.94" | Steel | 0.312" | Stainless Steel | 40° to 130° | Mounting Block | 0000000 | 000000 |
| Wd. | Ht. | Dp. | Material | Mount. Hole Dia. | Ctr.-to-Ctr. Mount. Hole Ht. | Each | |
| 1 1/4" | 2 1/4" | 1 1/4" | Aluminum | 0.39" | 1.44" | 0000000 | 000000 |
Adjustable Shock Absorbers
Turn the knob on these shock absorbers to change deceleration to suit varying loads and speeds. They counteract the energy of moving objects to prevent damage to equipment and material. They're commonly used in gantry systems, presses, and conveyor stops.
Threaded-body mount shock absorbers use Mounting Blocks for Shock Absorbers (not included) for mounting. They include mounting nuts.
Flange-mount shock absorbers can be attached anywhere along the body. Secure them in place with the included locknut.
Nylon and urethane rubber bumpers are nonmarring.
For technical drawings and 3-D models, click on a part number.
Body | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Energy Cap., in.-lbs. | Max. Cycles per Minute | Stroke Lg. | Extended Lg. | Compressed Lg. | Dia. | Thread Size | Body Material | Rod Diameter | Rod Finish | Bumper Dia. | Bumper Material | Temp. Range, ° F | Each | |
Variable Adjustment | ||||||||||||||
| 35 | 25 | 0.4" | 3.31" | 2.91" | 0.5" | 1/2"-20 | Black-Oxide Steel | 0.13" | Stainless Steel | 0.3" | Steel | 32° to 150° | 0000000 | 000000 |
| 200 | 25 | 0.5" | 3.67" | 3.17" | 0.563" | 9/16"-18 | Black-Oxide Steel | 0.19" | Stainless Steel | 0.47" | Nylon | 32° to 150° | 0000000 | 000000 |
| 275 | 18 | 0.5" | 4.35" | 3.85" | 0.75" | 3/4"-16 | Black-Anodized Aluminum | 0.19" | Nickel-Plated Steel | 0.5" | Urethane Rubber | 32° to 150° | 0000000 | 000000 |
| 300 | 22 | 0.75" | 4.67" | 3.92" | 0.75" | 3/4"-16 | Black-Oxide Steel | 0.19" | Stainless Steel | 0.66" | Steel | 32° to 150° | 0000000 | 000000 |
| 600 | 17 | 1" | 5.6" | 4.6" | 1" | 1"-12 | Black-Oxide Steel | 0.25" | Stainless Steel | 0.9" | Steel | 32° to 150° | 0000000 | 000000 |
| 715 | 15 | 1" | 5.62" | 4.62" | 1" | 1"-12 | Black-Anodized Aluminum | 0.25" | Chrome-Plated Steel | 0.62" | Urethane Rubber | 32° to 150° | 0000000 | 000000 |
| 1,500 | 7 | 0.91" | 5.44" | 4.53" | 1.25" | 1 1/4"-12 | Black-Oxide Steel | 0.375" | Chrome-Plated Steel | 1" | Steel | 32° to 150° | 0000000 | 000000 |
| 3,450 | 5 | 0.91" | 5.69" | 4.78" | 1.75" | 1 3/4"-12 | Black-Oxide Steel | 0.5" | Chrome-Plated Steel | 1.38" | Steel | 32° to 150° | 0000000 | 000000 |
| 6,900 | 2 | 1.91" | 7.69" | 5.78" | 1.75" | 1 3/4"-12 | Black-Oxide Steel | 0.5" | Chrome-Plated Steel | 1.38" | Steel | 32° to 150° | 0000000 | 000000 |
| 10,350 | 2 | 2.91" | 9.69" | 6.78" | 1.75" | 1 3/4"-12 | Black-Oxide Steel | 0.5" | Chrome-Plated Steel | 1.38" | Steel | 32° to 150° | 0000000 | 000000 |
Body | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Energy Cap., in.-lbs. | Max. Cycles per Minute | Stroke Lg. | Extended Lg. | Compressed Lg. | Dia. | Thread Size | Body Material | Rod Dia. | Rod Material | Bumper Dia. | Bumper Material | Temp. Range, ° F | Each | |
Variable Adjustment | ||||||||||||||
| 35 | 25 | 0.4" | 3.31" | 2.91" | 0.42" | M12 | Black-Oxide Steel | 0.13" | Stainless Steel | 0.3" | Steel | 32° to 150° | 0000000 | 000000 |
| 200 | 25 | 0.5" | 3.67" | 3.17" | 0.46" | M14 | Black-Oxide Steel | 0.19" | Stainless Steel | 0.47" | Nylon | 32° to 150° | 0000000 | 000000 |
| 275 | 18 | 0.5" | 4.35" | 3.85" | 0.75" | M20 | Black-Anodized Aluminum | 0.19" | Nickel-Plated Steel | 0.5" | Urethane Rubber | 32° to 150° | 0000000 | 000000 |
| 300 | 22 | 0.75" | 4.67" | 3.92" | 0.75" | M20 | Black-Oxide Steel | 0.19" | Stainless Steel | 0.66" | Steel | 32° to 150° | 0000000 | 000000 |
| 600 | 17 | 1" | 5.62" | 4.62" | 1" | M25 | Black-Oxide Steel | 0.25" | Stainless Steel | 0.9" | Steel | 32° to 150° | 0000000 | 000000 |
| 715 | 15 | 1" | 5.62" | 4.62" | 1" | M27 | Black-Anodized Aluminum | 0.25" | Chrome-Plated Steel | 0.62" | Urethane Rubber | 32° to 150° | 0000000 | 000000 |
| 1,500 | 7 | 0.91" | 5.44" | 4.53" | 1.15" | M33 | Black-Oxide Steel | 0.375" | Chrome-Plated Steel | 1" | Steel | 32° to 150° | 0000000 | 000000 |
| 3,450 | 5 | 0.91" | 5.69" | 4.78" | 1.65" | M45 | Black-Oxide Steel | 0.5" | Chrome-Plated Steel | 1.38" | Steel | 32° to 150° | 0000000 | 000000 |
| 6,900 | 2 | 1.91" | 7.69" | 5.78" | 1.65" | M45 | Black-Oxide Steel | 0.5" | Chrome-Plated Steel | 1.38" | Steel | 32° to 150° | 0000000 | 000000 |
| 11,506 | 2 | 2.91" | 9.69" | 6.78" | 1.75" | M45 | Black-Oxide Steel | 0.5" | Chrome-Plated Steel | 1.38" | Steel | 32° to 150° | 0000000 | 000000 |
Flange | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Energy Cap., in.-lbs. | Max. Cycles per Minute | Stroke Lg. | Extended Lg. | Compressed Lg. | Body Dia. | Body Material | Rod Dia. | Rod Material | Bumper Dia. | Bumper Material | Temp. Range, ° F | Wd. | Ht. | Mtg. Hole Ctr.-to-Ctr. | Thick. | Each | |
Variable Adjustment | |||||||||||||||||
| 3,800 | 3 | 1.91" | 7.44" | 5.53" | 1.25" | Steel | 1.25" | Chrome-Plated Steel | 1" | Urethane Rubber | 10° to 150° | 2" | 1 1/2" | 1.62" | 3/8" | 0000000 | 0000000 |
Light Duty Adjustable Shock Absorbers
Also known as snubbers, use these shock absorbers in low-load, high-cycle applications. They counteract the energy of moving objects to prevent damage to equipment and material. Turn the knob to change deceleration to suit varying loads and speeds. Through-wall shock absorbers have a stud and nut under the removable knob for mounting through a panel or bracket.
For technical drawings and 3-D models, click on a part number.
Rod | Mount. Stud | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Energy Cap., in.-lbs. | Max. Cycles per Minute | Stroke Lg. | Extended Lg. | Compressed Lg. | Body Dia. | Body Material | Dia. | Material | Thread Size | Lg. | Each | |
Variable Adjustment | ||||||||||||
| 4 | 600 | 1.1" | 4.32" | 2.99" | 1.01" | Rubber-Coated Borosilicate Glass | 0.375" | Urethane | 3/8"-32 | 1/8" | 0000000 | 000000 |
| 9 | 330 | 1.3" | 4.15" | 2.62" | 1.35" | Rubber-Coated Borosilicate Glass | 0.375" | Urethane | 3/8"-32 | 1/8" | 0000000 | 00000 |
Rod | Flange | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Energy Cap., in.-lbs. | Max. Cycles per Minute | Stroke Lg. | Extended Lg. | Compressed Lg. | Body Dia. | Body Material | Dia. | Material | Tip Material | Location | Wd. | Ht. | Mount. Hole Ctr.-to-Ctr. | Mount. Hole Dia. | Thick. | Each | |
Variable Adjustment | |||||||||||||||||
| 36 | 200 | 2.3" | 6.7" | 3.9" | 1.74" | Rubber-Coated Borosilicate Glass | 0.312" | Acetal | Urethane | Rear | 1 3/4" | 1 3/4" | 1.38" | 0.171" | 1/8" | 0000000 | 0000000 |
| 84 | 70 | 2.3" | 6.7" | 3.9" | 2.21" | Rubber-Coated Borosilicate Glass | 0.312" | Acetal | Urethane | Rear | 2 1/8" | 2 1/8" | 1 3/4" | 0.171" | 1/8" | 0000000 | 000000 |
Long-Length Shock Absorbers
Like the shocks in a car, these mount between two surfaces to minimize vibration and motion transfer caused by sudden impact.
Body | Rod | Eyelet | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Compression Force, lbs. | Extension Force, lbs. | Stroke Lg. | Extended Lg. | Compressed Lg. | Dia. | Material | Color | Dia. | Material | Dia. (A) | Dia. (B) | Each | |
| 117 | 537 | 9.03" | 23.26" | 14.23" | 2.5" | Painted Steel | White | 2.19" | Chrome-Plated Steel | 0.57" | 0.57" | 00000000 | 000000 |