About Track Rollers
Also known as cam followers, track rollers have a thick outer roller that runs directly on a flat surface.
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About Ball and Roller 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. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Open | ||||||||||||
| R8 | 1/2" | 1 1/8" | 1/4" | 440C Stainless Steel | 700 | 540 | 15,000 | Lubricated | -10° to 200° | ABEC-1 | 000000 | 000000 |
Sealed | ||||||||||||
| R8-2RS | 1/2" | 1 1/8" | 5/16" | 440C Stainless Steel | 700 | 540 | 15,000 | Lubricated | -10° to 200° | ABEC-1 | 0000000 | 00000 |
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.
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 | Contact Angle | Temp. Range, °F | ABEC Rating | Each | |
Steel Ring | |||||||||||||||
Open | |||||||||||||||
| 3 1/2" | 4" | 1/4" | 700 | 1,100 | 1,100 | 2,850 | 80 | 170 | 700 | Required | 30° | -60° to 250° | ABEC-1F | 0000000 | 0000000 |
Tapered-Roller Bearings
Found anywhere from machine tool spindles to conveyor rollers, these bearings have a two-piece design that allows for adjustment.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | Thrust Load Cap., lbs. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | For Housing ID | Wd. | Bearing Trade Number | Dynamic | Static | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | Each | |
Steel Ring | ||||||||||||
Open | ||||||||||||
| 1/2" | 1 3/8" | 0.344" | A4050/A4138 | 700 | 2,550 | 550 | 3,400 | 6,300 | Required | -60° to 200° | 00000000 | 000000 |
Needle-Roller Bearings
Also known as drawn-cup roller bearings, these are our thinnest roller bearings. The outer ring is drawn out to form a lip that holds the bearing together. Bearings take on the shape of their housing and may be oblong prior to installation.
Open bearings dissipate heat more efficiently than sealed bearings.
Sealed bearings block out dust better than open bearings, but retain more heat.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | For Shaft Surface Smoothness (Ra), microinch | Temp. Range, °F | Specifications Met | Each | |
Open | ||||||||||||
| 7mm | 11mm | 9mm | Steel | 700 | 660 | 33,000 | Required | 8 | -40° to 280° | DIN 618, ISO 3245 | 00000000 | 00000 |
Sealed—Both Sides | ||||||||||||
| 10mm | 14mm | 12mm | Steel | 700 | 750 | 14,600 | Lubricated | 8 | 0° to 210° | DIN 618 | 00000000 | 00000 |
Shaft-Mount Track Rollers
Also known as yoke-style cam followers, these rollers have more mounting flexibility than threaded track rollers. They're typically mounted onto a shaft or clevis rod end. Lubricate rollers through a hole and groove in the inner ring.
Crowned rollers have a slight curve, which is invisible to the naked eye, to stay centered on surfaces that are not perfectly aligned and/or not perfectly flat.
Rollers with seal have end seals to protect rolling elements from dirt and contamination.
For technical drawings and 3-D models, click on a part number.
Roller, mm | Radial Load Cap., lbs. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dia. | Wd. | For Shaft Dia., mm | Overall Wd., mm | Max. Speed, rpm | Static | Dynamic | Max. Temp., °F | Bearing Type | ID | ID Tolerance | Each | |
Black-Oxide Steel Crowned Rollers with Seal | ||||||||||||
| 16 | 11 | 5 | 12 | 14,000 | 750 | 700 | 210° | Needle Roller | 5mm | -0.008mm to 0mm | 0000000 | 000000 |