About Shaft Collars
Shaft collars are useful for holding and positioning components on a shaft. They can also serve as mechanical stops and stroke limiters.
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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)
Mounting Nuts for Shock Absorbers
Use Mounting Blocks for Shock Absorbers (not included) to mount and secure threaded-body shock absorbers.
Bearing Retaining Jam Nuts
Used in pairs or with another bearing retaining nut, these jam nuts—often called shaft nuts—hold bearings, bushings, pulleys, and gears in place on your threaded shaft or spindle. Threading two nuts tightly against each other makes it harder for vibration to loosen your assembly than if you used only one nut. For the nut closer to the bearing, position the stepped face towards the bearing. These jam nuts have holes on the side, so you can tighten and loosen them with a pin spanner wrench. Made of carbon steel, they’re strong and wear resistant. All meet DIN 1816, an international standard for bearing locknut dimensions.
For technical drawings and 3-D models, click on a part number.
Thread | |||||||
---|---|---|---|---|---|---|---|
Size | Pitch, mm | Spacing | OD, mm | Wd., mm | Specifications Met | Each | |
Carbon Steel | |||||||
Stepped Face | |||||||
M8 | 1 | Fine | 20 | 5 | DIN 1816 | 0000000 | 000000 |
M12 | 1.5 | Fine | 28 | 6 | DIN 1816 | 0000000 | 00000 |
M14 | 1.5 | Fine | 30 | 7 | DIN 1816 | 0000000 | 00000 |
M16 | 1.5 | Fine | 32 | 7 | DIN 1816 | 0000000 | 00000 |
M18 | 1.5 | Fine | 34 | 8 | DIN 1816 | 0000000 | 00000 |
M20 | 1.5 | Extra Fine | 36 | 8 | DIN 1816 | 0000000 | 00000 |
M22 | 1.5 | Fine | 40 | 9 | DIN 1816 | 0000000 | 00000 |
M24 | 1.5 | Extra Fine | 42 | 9 | DIN 1816 | 0000000 | 00000 |
M26 | 1.5 | Extra Fine | 45 | 10 | DIN 1816 | 0000000 | 00000 |
M28 | 1.5 | Extra Fine | 50 | 10 | DIN 1816 | 0000000 | 00000 |
M30 | 1.5 | Extra Fine | 50 | 10 | DIN 1816 | 0000000 | 00000 |
M35 | 1.5 | Extra Fine | 55 | 11 | DIN 1816 | 0000000 | 00000 |
M40 | 1.5 | Extra Fine | 62 | 12 | DIN 1816 | 0000000 | 00000 |
M42 | 1.5 | Extra Fine | 62 | 12 | DIN 1816 | 0000000 | 00000 |
M45 | 1.5 | Extra Fine | 68 | 12 | DIN 1816 | 0000000 | 00000 |
M48 | 1.5 | Extra Fine | 75 | 13 | DIN 1816 | 0000000 | 00000 |
M50 | 1.5 | Extra Fine | 75 | 13 | DIN 1816 | 0000000 | 00000 |
M52 | 1.5 | Extra Fine | 80 | 13 | DIN 1816 | 0000000 | 00000 |
M55 | 1.5 | Extra Fine | 80 | 13 | DIN 1816 | 0000000 | 00000 |
M60 | 1.5 | Extra Fine | 90 | 13 | DIN 1816 | 0000000 | 00000 |
M62 | 1.5 | Extra Fine | 95 | 14 | DIN 1816 | 0000000 | 000000 |
M65 | 1.5 | Extra Fine | 95 | 14 | DIN 1816 | 0000000 | 000000 |
M68 | 1.5 | Extra Fine | 100 | 14 | DIN 1816 | 0000000 | 000000 |
M70 | 1.5 | Extra Fine | 100 | 14 | DIN 1816 | 0000000 | 00000 |
M72 | 1.5 | Extra Fine | 110 | 14 | DIN 1816 | 0000000 | 000000 |
M75 | 1.5 | Extra Fine | 110 | 14 | DIN 1816 | 0000000 | 00000 |
M80 | 2 | Extra Fine | 115 | 16 | DIN 1816 | 0000000 | 00000 |
Bearing Retaining Nuts
Often paired with spring lock washers to strengthen their hold, these retaining nuts—also known as shaft nuts—keep vibration from shifting bearings, bushings, pulleys, and gears on your threaded shaft or spindle. They have slotted sides, so you can tighten and loosen them with a spanner wrench or spanner socket.
Use stepped-face retaining nuts with DIN 462 spring lock washers. You can also use them in pairs or with other bearing retaining nuts as jam nuts. For the nut closer to the bearing, position the stepped face towards the bearing. All meet DIN standards for bearing lockout dimensions.
Carbon steel retaining nuts are strong and resist wear.
For technical drawings and 3-D models, click on a part number.
Nuts | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Thread | Optional Washers | |||||||||
Size | Pitch, mm | Spacing | OD | Wd., mm | Specifications Met | For Lock Washer Specifications Met | Each | Each | ||
Carbon Steel | ||||||||||
Stepped Face | ||||||||||
M8 | 1 | Fine | 20mm | 5 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 00000 |
M12 | 1.5 | Fine | 28mm | 6 | DIN 1804 | DIN 462 | 0000000 | 0000 | 000000000 | 0000 |
M14 | 1.5 | Fine | 30mm | 7 | DIN 1804 | DIN 462 | 0000000 | 0000 | 000000000 | 0000 |
M16 | 1.5 | Fine | 32mm | 7 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 |
M18 | 1.5 | Fine | 34mm | 8 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 |
M20 | 1.5 | Extra Fine | 36mm | 8 | DIN 1804 | DIN 462 | 0000000 | 0000 | 000000000 | 0000 |
M24 | 1.5 | Extra Fine | 42mm | 9 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 |
M26 | 1.5 | Extra Fine | 45mm | 10 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000 | 00 |
M28 | 1.5 | Extra Fine | 50mm | 10 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 |
M30 | 1.5 | Extra Fine | 50mm | 10 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 |
M32 | 1.5 | Extra Fine | 52mm | 11 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 |
M35 | 1.5 | Extra Fine | 55mm | 11 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 |
M38 | 1.5 | Extra Fine | 58mm | 11 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 |
M40 | 1.5 | Extra Fine | 62mm | 12 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 |
M42 | 1.5 | Extra Fine | 62mm | 12 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 |
M45 | 1.5 | Extra Fine | 68mm | 12 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 |
M50 | 1.5 | Extra Fine | 75mm | 13 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000000 | 0000 |
M55 | 1.5 | Extra Fine | 80mm | 13 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000 | 00 |
M60 | 1.5 | Extra Fine | 90mm | 13 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000 | 00 |
M65 | 1.5 | Extra Fine | 95mm | 14 | DIN 1804 | DIN 462 | 0000000 | 00000 | 000000 | 00 |