About Copper, Brass, and Bronze
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About Plain Bearings
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About Ball and Roller Bearings
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About Plastic
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Set Screw Collar Ball Bearings
Slip these bearings onto a shaft and secure with the included set screws, no special tools required. All have an extended inner ring for additional shaft support.
Bearings with a black-oxide steel ring have some corrosion resistance.
Sealed bearings block out dust and other contaminants better than shielded bearings.
Bearings with a retaining ring have a removable retaining ring that holds the bearing inside a housing.
For technical drawings and 3-D models, click on a part number.
Inner Ring | Retaining Ring | Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | OD | Wd. | OD | Thick. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | ABEC Rating | Each | |
Sealed (Lubricated) | ||||||||||||||
Black-Oxide Steel—With Retaining Ring | ||||||||||||||
ER36 | 2 1/4" | 4.331" | 1 1/4" | 2.9844" | 2.5625" | 4 37/64" | 0.09375" | 11,750 | 8,150 | 3,000 | -20° to 220° | ABEC-1 | 0000000 | 0000000 |
One-Piece Thrust Ball Bearings
In addition to handling higher loads than three-piece ball bearings, one-piece bearings are easier to handle. They have an outer band that holds the bearing together and acts as a shield against dust and other contaminants.
For technical drawings and 3-D models, click on a part number.
Thrust Load Cap., lbs. | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Thick. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | Features | Each | |
Shielded | |||||||||||
2 1/4" | 3 23/32" | 13/16" | Steel | 11,200 | 31,500 | 1,900 | Required | -40° to 245° | Lubrication Hole | 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 | ||||||||||||
2 1/4" | 3 13/16" | 5/8" | 387A/382A | 4,900 | 24,100 | 2,950 | 24,900 | 2,000 | Required | -60° to 200° | 0000000 | 000000 |
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 | ||||||||||||||||
2 1/4" | 4 1/4" | 2 1/8" | 462/452D | Out | 62,900 | 37,200 | 20,700 | 36,400 | 0.012" | Two Direction | 6,700 | Required | -65° to 250° | One Spacer | 0000000 | 0000000 |
Multipurpose Sleeve Bearings
These 932 bearing bronze bearings are strong, wear resistant, and excellent at handling shock loads. They’re sometimes called 660 leaded bronze 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 | Temperature Range, °F | Each | |
932 Bearing Bronze Bearings | ||||||
---|---|---|---|---|---|---|
For 2 1/4" Shaft Dia. | ||||||
2 3/4" | 2" | 18,000 lbs. @ 30 rpm | Required | -350° to 450° | 0000000 | 000000 |
2 3/4" | 3" | 27,000 lbs. @ 30 rpm | Required | -350° to 450° | 00000000 | 00000 |
2 3/4" | 4" | 36,000 lbs. @ 30 rpm | Required | -350° to 450° | 0000000 | 00000 |
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 2 1/4" Shaft Dia. | |||||||
---|---|---|---|---|---|---|---|
4 1/2" | 1/8" | 16,500 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 000000 |
Ultra-Low-Friction Oil-Embedded Thrust Bearings
For applications with frequent starts and stops, the oil in these bearings contains particles of slippery PTFE that lubricate the bearing during startup.
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 | Specifications Met | Each | |
For 2 1/4" Shaft Dia. | ||||||||
---|---|---|---|---|---|---|---|---|
4 1/2" | 1/8" | 16,500 lbs. @ 30 rpm | Lubricated | SAE 20 Oil with PTFE | -60° to 300° | ASTM B438 | 00000000 | 000000 |
High-Load Ultra-Low-Friction Oil-Embedded Thrust Bearings
Handle heavy loads that frequently start and stop along shafts—these bearings contain extra iron and slippery PTFE lubricant. Startup friction causes a thin layer of PTFE to release onto the surface. Thanks to their high iron content, they also resist failing if their load suddenly and drastically increases, but they won’t run as fast as standard bearings. They’re thrust bearings, which means they support loads parallel to the shaft.
For technical drawings and 3-D models, click on a part number.
OD | Thickness | Dynamic Thrust Load Capacity | Lubrication | Lubrication Method | Temp. Range, °F | Each | |
For 2 1/4" Shaft Dia. | |||||||
---|---|---|---|---|---|---|---|
4" | 1/8" | 10,400 lbs. @ 30 rpm | Lubricated | Embedded | -60° to 300° | 00000000 | 000000 |
High-Load Dry-Running Thrust Bearings
A steel backing adds strength to these slippery PTFE 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 | Temperature Range, °F | Each | |
Steel-Backed PTFE Plastic Bearings | |||||
---|---|---|---|---|---|
For 2 1/4" Shaft Dia. | |||||
3 1/4" | 3/32" | 17,250 lbs. @ 30 rpm | -320° to 530° F° | 0000000 | 000000 |
Mounted Ball Bearings
Bearings are self-aligning to compensate for shaft misalignment. Seals block out dust and contaminants.
Bearings with nickel-plated cast iron housing are more corrosion resistant and durable than bearings with a cast iron housing.
Bearings with a set screw secure to shafts without using a collar. They let shafts rotate in both directions, so they’re good for applications where you need to reverse. However, the set screw will leave some marring on the shaft.
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 | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Sealed Steel Bearings with Cast Iron Housing | |||||||||||||||
Shaft Mount Type: Set Screw | |||||||||||||||
2 1/4" | 2 3/4" | 5 15/16" | 9 1/2" | 2 15/16" | 1" | 5/8" | 7 1/4" | 11,700 | 8,150 | 3,000 | -20° to 220° | Self Aligning | Lubricated | 0000000 | 0000000 |
Sealed Steel Bearings with Nickel-Plated Cast Iron Housing | |||||||||||||||
Shaft Mount Type: Set Screw | |||||||||||||||
2 1/4" | 2 3/4" | 5 7/16" | 9 1/2" | 2 15/16" | 31/32" | 25/32" | 7 1/4" | 11,750 | 8,100 | 2,000 | 0° to 210° | Self Aligning | Lubricated | 0000000 | 000000 |
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 | ||||||||||||||||
2 1/4" | 2 3/4" | 5 23/32" | 10 1/2" | 4" | 7/8" | 3/4" | 8 1/2" | 11,600 | 54,000 | 3,450 | 2,400 | -60° to 250° | Fixed Alignment | Lubricated | 0000000 | 0000000 |
Mounted Ball Bearings with Two-Bolt Flange
Bearings are self-aligning to compensate for shaft misalignment. Seals block out dust and contaminants.
Bearings with a set-screw shaft mount secure to shafts with no need for an additional collar. They can be used for bi-directional shaft rotation when applications require reversing action. The set screw may cause some marring on the shaft.
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 | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Sealed Steel Bearings with Cast Iron Housing | ||||||||||||||
Shaft Mount Type: Set Screw | ||||||||||||||
2 1/4" | 5 7/16" | 9 1/4" | 2 29/32" | 13/16" | 11/16" | 7 61/64" | 11,800 | 8,050 | 3,400 | -20° to 210° | Self Aligning | Lubricated | 00000000 | 0000000 |
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. | |||||||||
---|---|---|---|---|---|---|---|---|---|
2 3/4" | 0.034" to 0.044" | 2 1/4" | -0.064" to -0.019" | .004" per inch | Nonsparking | 00000000 | |||
3/8" Wall Thick. | |||||||||
3" | 0.034" to 0.044" | 2 1/4" | -0.064" to -0.019" | .004" per inch | Nonsparking | 00000000 | |||
1/2" Wall Thick. | |||||||||
3 1/4" | 0.034" to 0.044" | 2 1/4" | -0.064" to -0.019" | .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.
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.
Quick-Disconnect (QD) Bushings
The screw connections on these bushings easily mate to compatible quick-disconnect sprockets and pulleys. Bushings fit quick-disconnect (QD) sprockets and pulleys of the same bushing style. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.
For technical drawings and 3-D models, click on a part number.
Taper-Lock Bushings
Mount these hubless bushings flush into your sprocket or pulley for a slim profile with no protruding screws. They are for use with taper-lock sprockets of the same bushing style. As you tighten the included set screws, the bushing grips the shaft and pulls it into your sprocket or pulley.
For technical drawings and 3-D models, click on a part number.
Keyway | |||||||||
---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Overall Wd. | Wd. | Dp. | Taper | Fastener Tightening Torque, in.-lbs. | Material | Includes | Each | |
2517 Style Bushing | |||||||||
2 1/4" | 1 3/4" | 1/2" | 1/4" | 8° | 430 | Steel | Set Screws | 000000000 | 000000 |
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.
Wear-Resistant Easy-to-Machine Delrin® Acetal Resin Tubes
- Color: White or Black
- Temperature Range:
6" Lengths: 0° to 180° F
All other sizes: -20° to 180° F - Tensile Strength: 7,690 psi (Good)
- Impact Strength: 1-1.5 ft.-lbs./in. (Poor)
- Hardness: Rockwell R120-R122 (Hard)
- For Use Outdoors: No
- Specifications Met: See table
Easy to machine to close tolerances, these dimensionally stable tubes resist expanding when exposed to heat and moisture. They have a naturally slippery surface along with excellent wear resistance. Use them to make precision gears, bushings, and bearings. Delrin® acetal resin, also known as acetal homopolymer, is stronger and stiffer than acetal copolymer.
Tight-tolerance tubes that are 6” long are also known as bushing stock. You can slide them over rods to increase the OD, or into shafts to decrease the ID. Their precise sizing also allows ascending sizes to fit inside of each other to increase the wall thickness.
For technical drawings and 3-D models, click on a part number.
White | |||||||
---|---|---|---|---|---|---|---|
OD | OD Tolerance | ID | ID Tolerance | Specifications Met | Lg. | Each | |
1/8" Wall Thick. (-0.005" to 0.005") | |||||||
2 1/2" | -0.005" to 0.005" | 2 1/4" | -0.005" to 0.005" | ASTM D4181, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51 | 6" | 0000000 | 0000000 |
Slippery UHMW Polyethylene Tubes
These impact- and wear-resistant tubes offer 360° protection from scrapes and strikes to wires, cords, and anything that can slide through them. UHMW has a low-friction surface that resists sticking and binding.
Tight-tolerance tubes, also known as bushing stock, slide over rods and inside shafts to increase or decrease the diameter. Their precise sizing allows ascending sizes to fit inside each other to create a thicker wall.
For technical drawings and 3-D models, click on a part number.
- Color: White
- Temperature Range: -20° to 180° F
- Tensile Strength: 4,350-5,800 psi (Poor)
- Impact Strength: 16.8 ft.-lbs./in. (Excellent)
- Hardness: Durometer 65D-67D (Medium)
- For Use Outdoors: No
- Specifications Met: ASTM D4020
6" Lg. | |||||
---|---|---|---|---|---|
OD | OD Tolerance | ID | ID Tolerance | Each | |
1/4" Wall Thick. (-0.06" to 0") | |||||
2 3/4" | -0.030" to 0.000" | 2 1/4" | 0.000" to 0.030" | 0000000 | 000000 |
Clear Scratch- and UV-Resistant Acrylic Tubes
- Color: Clear
- Temperature Range: -40° to 180° F
- Tensile Strength; 9,195-11,030 (Good)
- Impact Strength: 0.040 ft.-lbs./in.
- Hardness: Rockwell M89-M96 (Hard)
- For Use Outdoors: Yes
- Specifications Met: UL 94 HB
When compared to cast acrylic tubes, these extruded acrylic tubes offer nearly the same performance at a fraction of the cost. Use them for sight gauges and protective covers. This scratch- and UV-resistant material stands up to outdoor use better than polycarbonate and maintains clarity over time.
For technical drawings and 3-D models, click on a part number.
OD | OD Tolerance | ID | ID Tolerance | Lg., ft. | Each | |
1/8" Wall Thick. | ||||||
---|---|---|---|---|---|---|
2 1/2" | -0.020" to 0.020" | 2 1/4" | -0.020" to 0.020" | 6 | 0000000 | 000000 |