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About Ball and Roller Bearings
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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 | |||||||||||||||
| 4" | 4 1/2" | 1/4" | 750 | 1,250 | 1,200 | 3,200 | 100 | 220 | 600 | Required | 30° | -60° to 250° | ABEC-1F | 0000000 | 0000000 |
| 4" | 4 5/8" | 5/16" | 1,050 | 1,750 | 1,700 | 4,350 | 140 | 310 | 600 | Required | 30° | -60° to 250° | ABEC-1F | 0000000 | 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 | Thick. | Dynamic Thrust Load Capacity | Lubrication | Lubricant | Temperature Range, °F | Each | |
For 4" Shaft Dia. | |||||||
|---|---|---|---|---|---|---|---|
| 5 1/2" | 1/8" | 12,500 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 000000 |
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 | ||||||||||||
| 4" | 6 3/16" | 1.031" | 52400/52618 | 13,000 | 77,000 | 10,600 | 107,000 | 1,100 | Required | -60° to 200° | 00000000 | 0000000 |
High-Load Tapered-Roller Bearings
Double rows of tapered bearings support large shafts with heavy loads. They also handle thrust loads in either direction as well as radial loads. All come assembled and ready to use.
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 No. | Taper Direction | Dynamic | Static | Dynamic | Static | Thrust Clearance | For Thrust Load Type | Max. Speed, rpm | Lubrication | Temp. Range, °F | Includes | Each | |
Steel Ring | ||||||||||||||||
Open | ||||||||||||||||
| 4" | 7 1/2" | 4" | 861/854D | Out | 179,000 | 142,000 | 59,000 | 138,000 | 0.012" | Two Direction | 3,800 | Required | -65° to 250° | One Spacer | 0000000 | 000000000 |
Mounted Roller Bearings
Roller bearings have a thinner profile and larger contact area than ball bearings, making them stronger and more space-efficient than ball bearings.
Sealed bearings block out dust and contaminants.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting | Radial Load Cap., lbs. | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Center Ht. | Ht. | Lg. | Wd. | Hole Lg. | Hole Wd. | Hole Ctr.-to-Ctr. | Dynamic | Static | Dynamic Thrust Load Cap., lbs. | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Steel Bearings with Cast Iron Housing—Shaft Mount Type: Set Screw | ||||||||||||||||
| 4" | 4 1/4" | 8 1/2" | 15 1/4" | 6 1/4" | 1 1/8" | 7/8" | 12 1/2" | 26,900 | 154,000 | 6,900 | 1,500 | -60° to 250° | Fixed Alignment | Lubricated | 0000000 | 000000000 |
Mounted Roller Bearings with Four-Bolt Flange
The tapered rollers in these bearings support large shafts at high static loads. Seals block out dust and contaminants.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting | Radial Load Cap., lbs. | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Ht. | Lg. | Wd. | Flange Thick. | Hole Dia. | Hole Ctr.-to-Ctr. | Dynamic | Static | Dynamic Thrust Load Cap., lbs. | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Sealed Tapered-Roller Bearings | |||||||||||||||
Steel Bearings with Cast Iron Housing—Shaft Mount Type: Set Screw | |||||||||||||||
| 4" | 10 1/4" | 10 1/4" | 6 1/2" | 2 1/8" | 7/8" | 7 3/4" | 26,900 | 154,000 | 6,900 | 1,500 | -60° to 250° | Fixed Alignment | Lubricated | 0000000 | 000000000 |
932 Bearing Bronze Tubes
- Yield Strength: 18,000 psi
- Hardness: Rockwell B35 (Soft)
- Temper: M07
- Heat Treatable: No
- Specifications Met: ASTM B505
Offering excellent antifriction qualities, 932 bronze also offers good strength and wear resistance. It's also known as SAE 660 and is often used for bearings, bushings, and thrust washers.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
| OD | OD Tolerance Range | ID | ID Tolerance Range | Straightness Tolerance | Nonsparking Properties | 3" Lg. | 6 1/2" Lg. | 13" Lg. | |
1/4" Wall Thick. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 4 1/2" | 0.055" to 0.071" | 4" | -0.109" to -0.047" | .004" per inch | Nonsparking | 00000000 | |||
1/2" Wall Thick. | |||||||||
| 5" | 0.055" to 0.071" | 4" | -0.109" to -0.047" | .004" per inch | Nonsparking | 00000000 | |||
1" Wall Thick. | |||||||||
| 6" | 0.078" to 0.11" | 4" | -0.158" to -0.062" | .004" per inch | Nonsparking | 00000000 | |||
Oil-Filled 841 Bearing Bronze Tubes
- Yield Strength: 11,000 psi
- Hardness: Not Rated
- Temper: Not Rated
- Heat Treatable: No
- Specifications Met: ASTM B438
Powdered bronze is pressed and then impregnated with SAE 30 oil to make this material self-lubricating. Use it to make bearings and parts for hard-to-reach areas that would be difficult to access for lubrication, such as well pumps and turbine blades. These tubes are oversized on the outside and undersized on the inside to allow for finishing to the sizes listed.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Weldable 954 Bearing Bronze Tubes
- Yield Strength: 32,000 psi
- Hardness: Rockwell B85 (Medium)
- Temper: M07
- Heat Treatable: Yes
- Specifications Met: ASTM B505
954 bronze contains a minimum of 10% aluminum for strength and weldability. It is also known as aluminum bronze. It's widely used for bearings, bushings, valve bodies, and worm gears. The strength of this material increases with heat treating.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Easy-to-Machine 936 Bearing Bronze Tubes
- Yield Strength: 21,000 psi
- Hardness: Rockwell B25 (Soft)
- Temper: M07
- Heat Treatable: No
- Specifications Met: ASTM B505
An easier-to-machine alternative to 932 bronze, 936 also has better corrosion resistance. It's also called modified SAE 64. Use it to machine bearings and bushings for oil pumps and gasoline engines.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
MDS-Filled Easy-to-Machine Wear-Resistant Cast Nylon Tubes
- Color: Black
- Maximum Temperature: 230° F
- Tensile Strength: 10,000 psi (Good)
- Impact Strength: 1.4 ft.-lbs./in. (Poor)
- Hardness: Rockwell R110 (Hard)
- For Use Outdoors: Yes
- Specifications Met: ASTM D5989
The addition of MDS gives these tubes exceptional wear resistance along with a self-lubricating surface. They're made of cast nylon 6, making them easier to machine and better electrical insulators than other MDS-filled nylon tubes. Tubes can be used to fabricate pulleys, bushings, and bearings installed in hard-to-reach areas where adding a lubricant would be difficult. The OD is oversized and the ID is undersized to allow for finishing to the sizes listed. This material is comparable to Nylatron and Nycast.
For technical drawings and 3-D models, click on a part number.
Heat-Stabilized Easy-to-Machine Wear-Resistant Cast Nylon Tubes
- Color: Blue
- Maximum Temperature: 250° F
- Tensile Strength: 10,000-13,500 psi (Good)
- Impact Strength: 1-2.5 ft.-lbs./in. (Poor)
- Hardness: Rockwell R110-R120 (Hard)
- For Use Outdoors: Yes
A good choice for making sprockets and pulleys, these cast nylon 6 tubes withstand higher temperatures and are easier to machine than standard nylon 6/6 tubes. This material is comparable to Nylatron and Nycast.
For technical drawings and 3-D models, click on a part number.