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 Ball and Roller Bearings
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About Plain Bearings
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Permanently Lubricated Stainless Steel Ball Bearings
A solid polymer lubricant surrounds the balls, eliminating the need for additional lubrication. The solid lubricant blocks out water and dust, extending the life of the bearing.
Sealed bearings have even better resistance to dust and contaminants than open bearings.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia., mm | For Housing ID, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Open | ||||||||||||
6810 | 50 | 65 | 7 | 440C Stainless Steel | 1,450 | 1,350 | 5,000 | Lubricated | -10° to 200° | ABEC-1 | 00000000 | 0000000 |
Sealed | ||||||||||||
6810-2RS | 50 | 65 | 7 | 440C Stainless Steel | 1,450 | 1,350 | 5,000 | Lubricated | -10° to 200° | ABEC-1 | 00000000 | 000000 |
Ultra-Thin Ball Bearings
These bearings have twice as many contact points as angular-contact ball bearings. Fit onto large-diameter hollow shafts to run air and hydraulic lines, electrical wiring, and other components through moving parts in assemblies such as index and rotary tables, packaging equipment, and robotics.
Open bearings dissipate heat more efficiently than shielded bearings.
Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | Thrust Load Cap., lbs. | Moment Load Cap., ft.-lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | For Housing ID | Wd. | Dynamic | Static | Dynamic | Static | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Steel Ring | ||||||||||||||
Open | ||||||||||||||
50mm | 65mm | 7mm | 1,450 | 1,350 | Not Rated | Not Rated | Not Rated | Not Rated | 11,000 | Lubricated | -50° to 130° | ABEC-1 | 00000000 | 000000 |
Shielded | ||||||||||||||
50mm | 65mm | 7mm | 1,450 | 1,350 | Not Rated | Not Rated | Not Rated | Not Rated | 9,600 | Lubricated | -40° to 150° | ABEC-1 | 00000000 | 00000 |
High-Load Crossed-Roller Bearings
The thicker inner and outer raceways on these bearings can handle heavier loads than the thin-profile crossed-roller bearings. The rollers face in alternating directions to allow for rigid, accurate motion under any combination of radial, thrust, and moment (twisting) loads. Use in applications where highly accurate motion is necessary, such as machine tools and industrial robots.
Open bearings dissipate heat more efficiently than sealed bearings.
Sealed bearings block out dust and other contaminants better than open bearings, but retain more heat.
For technical drawings and 3-D models, click on a part number.
Combined Load Cap., lbs. | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia., mm | For Housing ID, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | Features | Each | |
Open | |||||||||||
40 | 65 | 10 | Steel | 1,900 | 2,350 | 1,400 | Required | 0° to 245° | __ | 0000000 | 0000000 |
Sealed | |||||||||||
40 | 65 | 10 | Steel | 1,900 | 2,350 | 1,100 | Lubricated | 0° to 245° | Lubrication Groove, Two Lubrication Holes | 0000000 | 000000 |
Needle-Roller Thrust Bearings
Thinner rollers allow these bearings to fit in tighter spaces than tapered-roller thrust bearings. Because of the large contact area between the rollers and washers (not included), these bearings are great for medium to heavy duty, low-friction jobs. For use on hardened and ground surfaces.
For technical drawings and 3-D models, click on a part number.
Thrust Load Cap., lbs. | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Thick. | Dynamic | Static | Max. Speed, rpm | Lubrication | For Shaft Surface Smoothness (Ra), microns | Temp. Range, °F | Specifications Met | Each | |
Steel Rollers | |||||||||||
Open | |||||||||||
45mm | 65mm | 3mm | 6,700 | 28,700 | 5,000 | Required | 0.2 | 0° to 240° | DIN 5405-2 | 0000000 | 000000 |
Washers for Needle-Roller Thrust Bearings
Cylindrical-Roller Thrust Bearings
Cylindrical-roller thrust bearings handle higher loads than needle-roller thrust bearings. They also run at faster speeds than tapered-roller thrust bearings.
For technical drawings and 3-D models, click on a part number.
Thrust Load Cap., lbs. | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia., mm | OD, mm | Thick., mm | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | Includes | Each | |
Steel Rollers | ||||||||||
Open | ||||||||||
45 | 65 | 14 | 13,250 | 36,600 | 5,200 | Required | -25° to 245° | Two Washers | 0000000 | 0000000 |
Multipurpose Sleeve Bearings with Groove
A figure-8-shaped groove provides a flow path for lubricant, distributing it evenly along the bearing’s surface. Bearings are cast bronze, making them strong, wear resistant, and excellent at handling shock loads. 932 bearing bronze is sometimes called 660 leaded bronze.
Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.
For technical drawings and 3-D models, click on a part number.
For Housing ID | Lg. | Dynamic Radial Load Capacity | Lubrication | Temperature Range, °F | Each | |
Metric 932 Bearing Bronze | ||||||
---|---|---|---|---|---|---|
For 50mm Shaft Dia. | ||||||
65mm | 75mm | 20,300 lbs. @ 30 rpm | Required | -350° to 450° | 00000000 | 000000 |
Oil-Embedded Thrust Bearings
Startup friction causes these porous bronze bearings to release a thin layer of oil on the bearing’s surface. They are also known as Oilite® bearings.
Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.
For technical drawings and 3-D models, click on a part number.
OD, mm | Thick., mm | Dynamic Thrust Load Capacity | Lubrication | Lubricant | Temperature Range, °F | Each | |
For 45 mm Shaft Dia. | |||||||
---|---|---|---|---|---|---|---|
65 | 4 | 3,200 lbs. @ 60 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 000000 |
Corrosion-Resistant Thrust Bearings
The addition of iron and aluminum gives these bearings high strength and excellent corrosion resistance—making them suitable for use in marine and mining applications.
Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.
For technical drawings and 3-D models, click on a part number.
OD | Thick. | Dynamic Thrust Load Capacity | Lubrication | Temperature Range, °F | Each | |
954 Aluminum-Bronze Bearings | ||||||
---|---|---|---|---|---|---|
For 45mm Shaft Dia. | ||||||
65mm | 3mm | Not Rated | Required | -350° to 500° | 0000000 | 000000 |
Bearing Retaining Locknuts
With a nylon insert that grips your threaded shaft or spindle without damaging its threads, these locknuts—also called shaft nuts—hold bearings, bushings, gears, and pulleys prone to vibration tightly in place. They come as one piece, so you can easily clamp them onto your shaft or spindle. But, since they aren’t made entirely of metal, they don’t stand up to heat as well as all-metal locknuts. Slots in their sides mean you can tighten and loosen them with a spanner wrench or spanner socket. Their face is also chamfered to help keep the size and weight of your assembly at a minimum. All meet international standards for bearing locknut dimensions.
When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.
All carbon steel locknuts are strong and resist wear, though they don’t stand up to corrosion as well as stainless steel locknuts. 303 stainless steel locknuts resist corrosion better than steel locknuts but aren’t as strong. They withstand washdowns and chemicals.
For technical drawings and 3-D models, click on a part number.
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.
Chamfered-face retaining nuts weigh less and produce less heat than stepped-face nuts. Some meet ISO 2982 (formerly DIN 981), an international standard for bearing locknut dimensions. Their sizes correspond to SKF KM series. Use them with DIN 5406 spring lock washers.
Carbon steel retaining nuts are strong and resist wear.
For technical drawings and 3-D models, click on a part number.