About Ball and Roller Bearings
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About Plain Bearings
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Ball Bearings
Open bearings dissipate heat more efficiently than shielded and sealed 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. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bearing Trade Number  | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
| R18 | 1 1/8" | 2 1/8" | 3/8" | Steel | 2,150 | 1,600 | 15,000 | Lubricated | -20° to 230° | ABEC-1 | 000000000 | 000000 |
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 | |
| R18-2Z | 1 1/8" | 2 1/8" | 1/2" | Steel | 2,150 | 1,600 | 15,000 | Lubricated | -20° to 230° | ABEC-1 | 000000000 | 000000 |
Permanently Lubricated Ball Bearings
A solid polymer lubricant surrounds the balls, eliminating the need for additional lubrication. Because it's solid, the lubricant blocks out water and dust, extending the life of the bearing.
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 | ||||||||||||
| R18 | 1 1/8" | 2 1/8" | 3/8" | Steel | 2,250 | 1,600 | 7,000 | Lubricated | 10° to 200° | ABEC-1 | 0000000 | 000000 |
Stainless Steel Ball Bearings
Bearings are 440C stainless steel for good corrosion resistance.
Sealed bearings block out dust and other contaminants better than open and shielded bearings, but retain the most heat.
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 | |
| R18-2RS | 1 1/8" | 2 1/8" | 1/2" | 440C Stainless Steel | 1,900 | 1,250 | 8,000 | Lubricated | -20° to 210° | ABEC-1 | 00000000 | 000000 |
Ultra-Corrosion-Resistant Stainless Steel Ball Bearings
These 316 stainless steel bearings are more corrosion resistant than our other stainless steel bearings, but they have a lower load capacity.
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 | ||||||||||||
| R18 | 1 1/8" | 2 1/8" | 1/2" | 316 Stainless Steel | 270 | 240 | 720 | Required | -40° to 140° | Not Rated | 00000000 | 000000 |
Oil-Embedded Sleeve Bearings
Startup friction causes these 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.
| For Housing ID | Lg. | Dynamic Radial Load Capacity | Lubrication | Lubricant | Temperature Range, °F | Each | |
For 1 3/4" Shaft Dia. | |||||||
|---|---|---|---|---|---|---|---|
| 2 1/8" | 1/2" | 1,750 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
| 2 1/8" | 1 1/2" | 5,250 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
| 2 1/8" | 2" | 7,000 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
| 2 1/8" | 2 1/2" | 8,750 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
For 1 15/16" Shaft Dia. | |||||||
| 2 1/8" | 2" | 7,750 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
| 2 1/8" | 2 1/2" | 9,650 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | 10° to 220° | 00000000 | 00000 |
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.
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 | Each | |
Open | |||||||||||
| 1 3/4" | 2 1/8" | 1" | Steel | 9,300 | 17,000 | 5,800 | Required | 8 | -40° to 280° | 00000000 | 000000 |