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For Shaft Diameter For Shaft Diameter |
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Adjusting Screw Material Adjusting Screw Material |
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Mounting Hole Center-to-Center Length Mounting Hole Center-to-Center Length |
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Mounting Hole Center-to-Center Height Mounting Hole Center-to-Center Height |
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Dynamic Load Capacity Dynamic Load Capacity |
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Maximum Speed Maximum Speed |
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Maximum Mounting Slot Center-to-Center Height Maximum Mounting SlotCenter-to-Center Height |
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Minimum Mounting Slot Center-to-Center Height Minimum Mounting SlotCenter-to-Center Height |
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Mounting Orientation Mounting Orientation |
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Conveyor Belt Tensioners
A tensioner extends or retracts the conveyor pulley to adjust the tension on the conveyor belt. Mount to the sides of the conveyor and attach to the bearings that hold the pulley.
Stainless steel tensioners are corrosion resistant.
Note: Two tensioners and two bearings (sold separately) are required.
For technical drawings and 3-D models, click on a part number.
Tensioners
Steel
Stainless Steel
Mounting Hole | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Max. Adjustment Lg. | Lg. | Ht. | Adjusting Screw Material | Mounting Fasteners Included | Dia. | Ctr.-to-Ctr. Lg. | Ctr.-to-Ctr. Ht. | Color | Each | |
Painted Steel | ||||||||||
| 1 1/2" | 7" | 4 1/16" | Cadmium-Plated Steel | No | 9/16" | 6" | 3 3/16" | Gray | 0000000 | 0000000 |
| 3" | 8 1/2" | 4 1/16" | Cadmium-Plated Steel | No | 9/16" | 7 1/2" | 3 3/16" | Gray | 0000000 | 000000 |
| 6" | 11 1/2" | 4 1/16" | Cadmium-Plated Steel | No | 9/16" | 10 1/2" | 3 3/16" | Gray | 0000000 | 000000 |
| 6" | 12 3/8" | 4 11/16" | Cadmium-Plated Steel | No | 9/16" | 11 3/8" | 3 11/16" | Gray | 0000000 | 000000 |
| 6" | 14" | 5 1/16" | Cadmium-Plated Steel | No | 9/16" | 12 7/8" | 3 1/16" | Gray | 0000000 | 000000 |
| 9" | 14 1/2" | 4 1/16" | Cadmium-Plated Steel | No | 9/16" | 13 1/2" | 3 3/16" | Gray | 0000000 | 000000 |
| 9" | 15 3/8" | 4 11/16" | Cadmium-Plated Steel | No | 9/16" | 14 3/8" | 3 11/16" | Gray | 0000000 | 000000 |
| 9" | 17" | 5 1/16" | Cadmium-Plated Steel | No | 9/16" | 15 7/8" | 3 1/16" | Gray | 0000000 | 000000 |
| 12" | 18 3/8" | 4 11/16" | Cadmium-Plated Steel | No | 9/16" | 17 3/8" | 3 11/16" | Gray | 0000000 | 000000 |
| 12" | 20" | 5 1/16" | Cadmium-Plated Steel | No | 9/16" | 18 7/8" | 3 1/16" | Gray | 0000000 | 000000 |
| 18" | 26" | 5 1/16" | Cadmium-Plated Steel | No | 9/16" | 24 7/8" | 3 1/16" | Gray | 0000000 | 000000 |
Stainless Steel | ||||||||||
| 3" | 8" | 3 3/4" | Stainless Steel | No | 3/8" | 6 1/2" | 1 3/4" | __ | 0000000 | 000000 |
| 6" | 11" | 3 3/4" | Stainless Steel | No | 3/8" | 9 1/2" | 1 3/4" | __ | 0000000 | 000000 |
| 9" | 14" | 3 3/4" | Stainless Steel | No | 3/8" | 12 1/2" | 1 3/4" | __ | 0000000 | 000000 |
| 12" | 17" | 3 3/4" | Stainless Steel | No | 3/8" | 15 1/2" | 1 3/4" | __ | 0000000 | 000000 |
Bearings
Iron
Stainless Steel
End View
| For Tensioner Height | For Shaft Dia. | Dynamic Load Cap., lbs. | Max. Speed, rpm | Lg. | Wd. | Ht. | Temp. Range, °F | Features | Each | |
Iron | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 4 1/16" | 1/2" | 2,100 | 7,500 | 3 11/16" | 17/32" | 3 1/2" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 4 1/16" | 5/8" | 2,100 | 7,500 | 3 11/16" | 17/32" | 3 1/2" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 00000 |
| 4 1/16" | 3/4" | 2,610 | 6,500 | 4" | 17/32" | 3 1/2" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 4 1/16" | 15/16" | 2,800 | 5,500 | 4 3/32" | 17/32" | 3 1/2" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 4 1/16" | 1" | 2,800 | 5,500 | 4 3/32" | 17/32" | 3 1/2" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 4 11/16" | 1 3/16" | 4,380 | 4,500 | 4 5/8" | 17/32" | 4" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 4 11/16" | 1 1/4" | 5,780 | 4,000 | 5" | 17/32" | 4" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 4 11/16" | 1 7/16" | 5,780 | 4,000 | 5" | 17/32" | 4" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 5 1/16" | 1 1/2" | 7,340 | 3,500 | 5 19/32" | 11/16" | 4 1/2" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 5 1/16" | 1 3/4" | 7,900 | 3,000 | 5 3/4" | 11/16" | 4 1/2" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 5 1/16" | 1 15/16" | 7,880 | 3,000 | 5 29/32" | 11/16" | 4 1/2" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
Stainless Steel with Plastic Housing | ||||||||||
| 3 3/4" | 5/8" | 2,435 | 4,835 | 3 11/16" | 17/64" | 3 1/8" | 0° to 150° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 3 3/4" | 3/4" | 2,435 | 4,835 | 3 11/16" | 17/64" | 3 1/8" | 0° to 150° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 3 3/4" | 7/8" | 2,650 | 4,610 | 3 13/16" | 17/64" | 3 1/8" | 0° to 150° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 3 3/4" | 1" | 2,650 | 4,610 | 3 13/16" | 17/64" | 3 1/8" | 0° to 150° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
Bearings for Conveyor Belt Tensioners
Iron
Stainless Steel
End View
Use on a conveyor pulley with a conveyor belt tensioner to adjust the tension on a conveyor belt.
Stainless steel bearings are corrosion resistant.
For technical drawings and 3-D models, click on a part number.
| For Shaft Dia. | Dynamic Load Cap., lbs. | Max. Speed, rpm | Lg. | Wd. | Ht. | Temp. Range, °F | Features | Each | |
Iron | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/2" | 2,100 | 7,500 | 3 11/16" | 17/32" | 3 1/2" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 5/8" | 2,100 | 7,500 | 3 11/16" | 17/32" | 3 1/2" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 00000 |
| 3/4" | 2,610 | 6,500 | 4" | 17/32" | 3 1/2" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 15/16" | 2,800 | 5,500 | 4 3/32" | 17/32" | 3 1/2" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 1" | 2,800 | 5,500 | 4 3/32" | 17/32" | 3 1/2" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 1 3/16" | 4,380 | 4,500 | 4 5/8" | 17/32" | 4" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 1 1/4" | 5,780 | 4,000 | 5" | 17/32" | 4" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 1 7/16" | 5,780 | 4,000 | 5" | 17/32" | 4" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 1 1/2" | 7,340 | 3,500 | 5 19/32" | 11/16" | 4 1/2" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 1 3/4" | 7,900 | 3,000 | 5 3/4" | 11/16" | 4 1/2" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 1 15/16" | 7,880 | 3,000 | 5 29/32" | 11/16" | 4 1/2" | -20° to 200° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
Stainless Steel with Plastic Housing | |||||||||
| 5/8" | 2,435 | 4,835 | 3 11/16" | 17/64" | 3 1/8" | 0° to 150° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 3/4" | 2,435 | 4,835 | 3 11/16" | 17/64" | 3 1/8" | 0° to 150° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 7/8" | 2,650 | 4,610 | 3 13/16" | 17/64" | 3 1/8" | 0° to 150° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 1" | 2,650 | 4,610 | 3 13/16" | 17/64" | 3 1/8" | 0° to 150° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
Enclosed Conveyor Belt Tensioners
Prevent debris buildup, and thread damage—these tensioners have a totally enclosed adjusting screw. Tensioners mount to the sides of the conveyor and attach to the bearings that hold the pulley. Note: Two tensioners and two base-mount bearings (not included) are required.
Stainless steel tensioners are corrosion resistant.
For technical drawings and 3-D models, click on a part number.
Mounting Hole | Mounting Slot | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Adjustment Lg. | Lg. | Ht. | Adjusting Screw Material | Mounting Fasteners Included | Dia. | Ctr.-to-Ctr. Lg. | Ctr.-to-Ctr. Ht. | Wd. | Ht. | Ctr.-to-Ctr. Ht. | Each | |
Steel | ||||||||||||
| 3" | 6 7/8" | 5 1/4" | Steel | No | 1/2" | 3 9/16" | 2 5/8" | 3/8" | 11/16" | 2 15/16"-4 5/16" | 00000000 | 0000000 |
| 3" | 8 1/2" | 7" | Steel | No | 1/2" | 4 3/8" | 3" | 1/2" | 15/16" | 3 13/16"-5 11/16" | 00000000 | 000000 |
| 6" | 10 3/8" | 5 1/4" | Steel | No | 1/2" | 7 1/16" | 2 5/8" | 3/8" | 11/16" | 2 15/16"-4 5/16" | 00000000 | 000000 |
| 6" | 11 1/2" | 7" | Steel | No | 1/2" | 7 3/8" | 3" | 1/2" | 15/16" | 3 13/16"-5 11/16" | 00000000 | 000000 |
| 9" | 14 3/8" | 5 1/4" | Steel | No | 1/2" | 11 1/16" | 2 5/8" | 3/8" | 11/16" | 2 15/16"-4 5/16" | 00000000 | 000000 |
| 9" | 14 1/2" | 7" | Steel | No | 1/2" | 10 3/8" | 3" | 1/2" | 15/16" | 3 13/16"-5 11/16" | 00000000 | 000000 |
| 12" | 19 1/8" | 10" | Steel | No | 5/8" | 14 1/8" | 4" | 5/8" | 1 9/16" | 5 9/16"-8 11/16" | 00000000 | 000000 |
Stainless Steel | ||||||||||||
| 3" | 6 7/8" | 5 1/4" | Stainless Steel | No | 1/2" | 3 9/16" | 2 5/8" | 3/8" | 11/16" | 2 15/16"-4 5/16" | 00000000 | 000000 |
| 3" | 8 1/2" | 7" | Stainless Steel | No | 1/2" | 4 3/8" | 3" | 1/2" | 15/16" | 3 13/16"-5 11/16" | 00000000 | 000000 |
| 6" | 10 3/8" | 5 1/4" | Stainless Steel | No | 1/2" | 7 1/16" | 2 5/8" | 3/8" | 11/16" | 2 15/16"-4 5/16" | 00000000 | 000000 |
| 6" | 11 1/2" | 7" | Stainless Steel | No | 1/2" | 7 3/8" | 3" | 1/2" | 15/16" | 3 13/16"-5 11/16" | 00000000 | 000000 |
| 9" | 14 3/8" | 5 1/4" | Stainless Steel | No | 1/2" | 11 1/16" | 2 5/8" | 3/8" | 11/16" | 2 15/16"-4 5/16" | 00000000 | 000000 |
| 9" | 14 1/2" | 7" | Stainless Steel | No | 1/2" | 10 3/8" | 3" | 1/2" | 15/16" | 3 13/16"-5 11/16" | 00000000 | 000000 |
Adjustable-Arm Roller Chain and Belt Tensioners
Vertical Mount
Horizontal Mount
Tensioners take up slack and allow you to adjust tension on your roller chain or belt. Position the adjustment arm to control tension at any point in a 360° arc. They are for use with idler sprockets or pulleys.
For technical drawings and 3-D models, click on a part number.
Mounting Plate | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Tension Force, lbs. | Ht. | Wd. | Tension Arm Lg. | Overall Dp. | Material | Arm Rotation | Includes | Each | |
Vertical Mount | ||||||||||
| 3/8"-16 | 45 | 3 1/4" | 2" | 2 1/2" | 1 3/8" | Steel | 360° | Idler Shaft | 00000000 | 0000000 |
| 1/2"-13 | 45 | 5" | 3 1/2" | 3 13/16" | 2" | Steel | 360° | Idler Shaft | 00000000 | 000000 |
| 5/8"-11 | 45 | 5" | 3 1/2" | 3 13/16" | 2" | Steel | 360° | Idler Shaft | 00000000 | 000000 |
| 3/4"-10 | 45 | 5" | 3 1/2" | 3 13/16" | 2" | Steel | 360° | Idler Shaft | 00000000 | 000000 |
Horizontal Mount | ||||||||||
| 3/8"-16 | 45 | 2 5/16" | 2 1/4" | 2 1/2" | 2" | Steel | 360° | Idler Shaft | 00000000 | 000000 |
| 1/2"-13 | 45 | 3 1/4" | 4" | 3 13/16" | 3 3/8" | Steel | 360° | Idler Shaft | 00000000 | 000000 |
| 5/8"-11 | 45 | 3 1/4" | 4" | 3 13/16" | 3 3/8" | Steel | 360° | Idler Shaft | 00000000 | 000000 |
| 3/4"-10 | 45 | 3 1/8" | 4" | 4" | 3 3/8" | Steel | 360° | Idler Shaft | 00000000 | 000000 |
Heavy Duty Belt and Roller Chain Tensioners
Maintain correct drive tension to ensure smooth operation for maximum power and a long service life. Designed for use on large belt and chain drives, tensioners are spring loaded to provide constant tension and automatic adjustments for pulsating loads. Idler shaft (sold separately) is required.
For technical drawings and 3-D models, click on a part number.
Tensioners
Tensioner Shown with Idler Shaft (Sold Separately)
Side View of Tensioner Shown with Idler Shaft (Sold Separately)
Spring-Loaded Adjustable-Arm
Roller Chain and Belt Tensioners
Vertical Mount
Horizontal Mount
Replacement Spring
Tensioners take up slack and allow you to adjust tension on your roller chain or belt. A built-in spring allows the adjustment arm to apply continuous tension. They are for use with idler sprockets or pulleys.
For technical drawings and 3-D models, click on a part number.
Mounting Plate | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Tension Force, lbs. | Ht. | Wd. | Tension Arm Lg. | Overall Dp. | Material | Arm Rotation | Includes | Each | |
Vertical Mount | ||||||||||
| 1/2"-13 | 45 | 5" | 3 1/2" | 5" | 2 7/8" | Steel | 180° | Idler Shaft | 00000000 | 0000000 |
| 5/8"-11 | 45 | 5" | 3 1/2" | 5" | 2 7/8" | Steel | 180° | Idler Shaft | 00000000 | 000000 |
| 3/4"-10 | 45 | 5" | 3 1/2" | 5" | 2 7/8" | Steel | 180° | Idler Shaft | 00000000 | 000000 |
Horizontal Mount | ||||||||||
| 1/2"-13 | 45 | 3 1/8" | 4" | 5" | 2 1/2" | Steel | 180° | Idler Shaft | 00000000 | 000000 |
| 5/8"-11 | 45 | 3 1/8" | 4" | 5" | 2 1/2" | Steel | 180° | Idler Shaft | 00000000 | 000000 |
| 3/4"-10 | 45 | 3 1/8" | 4" | 5" | 2 1/2" | Steel | 180° | Idler Shaft | 00000000 | 000000 |
| Replacement Spring | 00000000 | Each | 000000 |
Adjustable-Screw Roller Chain and Belt Tensioners
