About Ball and Roller Bearings
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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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Precision Ball Bearings
For greater accuracy and higher speeds, these bearings are made to tighter tolerances than standard ball bearings.
Shielded bearings dissipate heat more efficiently than sealed bearings.
Sealed bearings block out dust and other contaminants better than shielded 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 | |
Shielded | ||||||||||||
6018-2Z | 90 | 140 | 24 | Steel | 13,600 | 11,200 | 5,000 | Lubricated | -20° to 230° | ABEC-3 | 0000000 | 0000000 |
6216-2Z | 80 | 140 | 26 | Steel | 16,350 | 12,350 | 4,800 | Lubricated | -20° to 230° | ABEC-3 | 0000000 | 000000 |
6313-2Z | 65 | 140 | 33 | Steel | 21,900 | 13,450 | 5,300 | Lubricated | -20° to 230° | ABEC-3 | 0000000 | 000000 |
Sealed | ||||||||||||
6018-2RS | 90 | 140 | 24 | Steel | 13,600 | 11,200 | 3,000 | Lubricated | -30° to 210° | ABEC-3 | 0000000 | 000000 |
6216-2RS | 80 | 140 | 26 | Steel | 16,350 | 12,350 | 3,000 | Lubricated | -30° to 210° | ABEC-3 | 0000000 | 000000 |
6313-2RS | 65 | 140 | 33 | Steel | 21,900 | 13,450 | 3,200 | Lubricated | -30° to 210° | ABEC-3 | 0000000 | 000000 |
Spherical-Roller Bearings
Two rows of rollers give these bearings dynamic radial load capacities over five times higher than comparably sized tapered-roller bearings. Also known as rock crusher bearings, they handle heavy shock loads and are used for metal milling machinery, mining and oil field equipment, and in paper mills.
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.