System of Measurement System of Measurement |
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Mounted Bearing Type Mounted Bearing Type |
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Base Mount | Four-Bolt Flange Mount |
Housing Material Housing Material |
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Bearing Material Bearing Material |
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Alignment Style Alignment Style |
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Length Length | Show |
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Length Length | Hide |
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Dynamic Radial Load Capacity Dynamic Radial Load Capacity |
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Static Radial Load Capacity Static Radial Load Capacity |
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For Load Direction For Load Direction |
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For Shaft Type For Shaft Type |
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Round | Round with Support Rail |
Mounting Hole Length Mounting Hole Length |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Linear Bearings
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About Ball and Roller Bearings
More
Selecting Compatible Lead Screws and Nuts
More
Low-Profile Mounted Ball Bearings

Designed with a thin, compact housing, these bearings are good for space-constrained applications.
Bearings with steel housing are stronger than bearings with stainless steel and aluminum housings. They are self-aligning to compensate for shaft misalignment. Seals block out dust and contaminants.
Sealed bearings block out dust and other contaminants better than shielded bearings.
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 Steel Housing | |||||||||||||||
Shaft Mount Type: Set Screw | |||||||||||||||
1/2" | 7/8" | 1 23/32" | 3 3/8" | 1 1/8" | 1/2" | 11/32" | 2 43/64" | 2,140 | 1,070 | 5,800 | 0° to 210° | Self Aligning | Lubricated | 0000000 | 000000 |
5/8" | 7/8" | 1 23/32" | 3 3/8" | 1 1/8" | 1/2" | 11/32" | 2 43/64" | 2,140 | 1,070 | 5,800 | 0° to 210° | Self Aligning | Lubricated | 0000000 | 00000 |
Mounted Ball Bearings with Four-Bolt Flange
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.
Set screw bearings secure to shafts as you tighten their screw. They don’t need a collar, but the screw leaves some marring on shafts. Use them in applications where shafts rotate in both directions.
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 | ||||||||||||||
3/4" | 3 3/8" | 3 3/8" | 1 15/32" | 3/8" | 7/16" | 2 1/2" | 2,850 | 1,450 | 8,500 | -20° to 210° | Self Aligning | Lubricated | 0000000 | 000000 |
Sealed Steel Bearings with Nickel-Plated Cast Iron Housing | ||||||||||||||
Shaft Mount Type: Set Screw | ||||||||||||||
3/4" | 3 3/8" | 3 3/8" | 1 5/16" | 7/16" | 15/32" | 2 33/64" | 2,870 | 1,490 | 5,800 | 0° to 210° | Self Aligning | Lubricated | 0000000 | 00000 |
Permanently Lubricated Washdown Mounted Ball Bearings with Four-Bolt Flange

Made to withstand frequent washdowns, these bearings are permanently lubricated, which means you’ll never have to add lubricant. Use them in hard-to-reach areas in food, beverage, pharmaceutical, and chemical plants. With a 316 stainless steel housing, these bearings won’t rust from salt water, chlorine, or chemicals. All are lubricated with NSF registered H1 grease, which is certified for incidental contact with food.
Set-screw bearings secure to shafts as you tighten their screw. They don’t need a collar; however, the screws leave some marring on the shaft.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting | Radial Load Capacity, lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Height | Length | Width | Flange Thick. | Hole Dia. | Hole Ctr.-to-Ctr. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Environmental Rating | Each | |
Sealed Steel Bearings with 316 Stainless Steel Housing | ||||||||||||||
Shaft Mount Type: Set Screw | ||||||||||||||
3/4" | 1 9/32" | 3 3/8" | 2 19/64" | 7/16" | 3/8" | 2 1/2" | 2,610 | 1,440 | 3,100 | -20° to 220° | Self Aligning | IP69K | 0000000 | 0000000 |
Food Industry Mounted Ball Bearings with Four-Bolt Flange


The lubricant in these mounted ball bearings is suitable for incidental contact with food. Bearings are self-aligning to compensate for shaft misalignment.
Steel bearings are stronger than stainless steel bearings, but not as corrosion resistant.
Stainless steel bearings are more corrosion resistant than steel bearings.
Sealed bearings block out dust and other contaminants better than shielded bearings.
Shielded bearings dissipate heat more efficiently than sealed bearings.
For technical drawings and 3-D models, click on a part number.
Bearings | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Mounting | Radial Load Cap., lbs. | Optional Covers | ||||||||||||
For Shaft Dia. | Ht. | Lg. | Wd. | Flange Thick. | Hole Dia. | Hole Ctr.-to-Ctr. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | Specifications Met | Each | Each | ||
Sealed Steel Bearings with Plastic Housing | |||||||||||||||
Shaft Mount Type: Set Screw | |||||||||||||||
3/4" | 3 3/8" | 3 3/8" | 1 15/32" | 19/32" | 29/64" | 2 1/2" | 2,850 | 1,450 | 1,100 | -20° to 160° | FDA Compliant 21 CFR 177.1520 FDA Compliant 21 CFR 177.1680 FDA Compliant 21 CFR 177.2600 FDA Compliant 21 CFR 178.3570 NSF Registered H1 | 0000000 | 000000 | 0000000 | 00000 |
Sealed 303 Stainless Steel Bearings with Plastic Housing and Cover | |||||||||||||||
Shaft Mount Type: Set Screw | |||||||||||||||
3/4" | 3 3/8" | 3 3/8" | 1 3/8" | 9/16" | 3/8" | 2 1/2" | Not Rated | 200 | 500 | -20° to 250° | NSF Registered H1 | 0000000 | 00000 | 000000 | 00 |
Shielded 420 Stainless Steel Bearings with 300 Series Stainless Steel Housing | |||||||||||||||
Shaft Mount Type: Set Screw | |||||||||||||||
3/4" | 3 3/8" | 3 3/8" | 1 9/32" | 7/16" | 7/16" | 2 1/2" | 2,400 | 1,450 | 1,100 | -30° to 160° | FDA Compliant 21 CFR 177.1520 FDA Compliant 21 CFR 177.1680 FDA Compliant 21 CFR 177.2600 FDA Compliant 21 CFR 178.3570 NSF Registered H1 | 0000000 | 000000 | 0000000 | 0000 |
High-Temperature Mounted Ball Bearings with Four-Bolt Flange

Synthetic grease enables these bearings to operate in temperatures up to 400° F—nearly double the maximum temperature of standard mounted ball bearings with four-bolt flange. They are self-aligning to compensate for shaft misalignment. 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 | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Sealed Steel Bearings with Cast Iron Housing | ||||||||||||||
Shaft Mount Type: Set Screw | ||||||||||||||
3/4" | 3 3/8" | 3 3/8" | 1 9/32" | 7/16" | 13/32" | 2 1/2" | 2,600 | 1,400 | 3,200 | -20° to 400° | Self Aligning | Lubricated | 0000000 | 0000000 |
Mounted Sleeve Bearings with Four-Bolt Flange

Capable of handling temperatures from -400° to 750° F, these graphalloy bearings have the widest temperature range of any of our mounted bearings. They are self-aligning to compensate for shaft misalignment.
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.
Overall | Mounting | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Ht. | Lg. | Wd. | Bearing Wd. | Flange Thick. | Hole Dia. | Hole Ctr.-to-Ctr. | Dynamic Radial Load Cap. | Temp. Range, °F | Alignment Style | Each | |
Graphalloy Bearings with Cast Iron Housing | ||||||||||||
1/2" | 3 3/8" | 3 3/8" | 1 3/32" | 1 3/32" | 15/32" | 15/32" | 2 33/64" | 410 lbs. @ 120 rpm | -400° to 750° | Self Aligning | 0000000 | 0000000 |
5/8" | 3 3/8" | 3 3/8" | 1 3/32" | 1 3/32" | 15/32" | 15/32" | 2 33/64" | 510 lbs. @ 60 rpm | -400° to 750° | Self Aligning | 0000000 | 000000 |
3/4" | 3 3/8" | 3 3/8" | 1 3/32" | 1 3/32" | 15/32" | 15/32" | 2 33/64" | 610 lbs. @ 60 rpm | -400° to 750° | Self Aligning | 0000000 | 000000 |
Washdown Mounted Ball Bearings with Four-Bolt Flange
Meeting IP69K for washdown environments, these mounted ball bearings are used in food, beverage, pharmaceutical, and chemical plants. They have excellent corrosion resistance and prevent rusting caused by salt water, chlorine solutions, and chemicals because their housing is 316 stainless steel. All have USDA H1 approved lubrication, which is certified for incidental contact with food and is suitable for food and beverage applications.
Set screw bearings secure to shafts as you tighten their screw. They don’t need a collar, but the screw does leave some marring on shafts.
Clamp on bearings have a locking collar to center shafts and secure them better than set screw bearings, so there’s less vibration and noise. To install them, tighten the locking collar’s screw until it grips the inner ring.
Snap optional covers onto bearings to shield them from moisture. Made of polypropylene, they resist corrosion, won’t absorb water, and are FDA compliant.
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 | Specifications Met | Each | |
Sealed Steel Bearings with 316 Stainless Steel Housing | |||||||||||||||
Shaft Mount Type: Set Screw | |||||||||||||||
3/4" | 3 3/8" | 3 3/8" | 1 9/32" | 7/16" | 13/32" | 2 1/2" | 2,600 | 1,400 | 3,000 | -20° to 220° | Self Aligning | Lubricated | NSF Registered H1 | 00000000 | 0000000 |
Shaft Mount Type: Clamp On | |||||||||||||||
3/4" | 3 3/8" | 3 3/8" | 1 9/32" | 7/16" | 13/32" | 2 1/2" | 2,600 | 1,400 | 3,000 | -20° to 220° | Self Aligning | Lubricated | NSF Registered H1 | 00000000 | 000000 |


Chemical-Resistant Flange-Mounted Linear Sleeve Bearings

The Frelon liner on these bearings allows them to stand up to a wider range of chemicals than other flange-mounted linear sleeve bearings. All are self-aligning to compensate for shaft misalignment and are for use with round end-supported shafts. Note: Not for use with bare aluminum or chrome-plated shafts.
Bearings with 0.0005" shaft clearance are best for precision applications. Bearings with 0.0015" shaft clearance are less likely to bind on your shaft than bearings with 0.0005" shaft clearance.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting Holes | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Shaft Clearance | Lg. | Wd. | Ht. | Flange Thick. | Bolt Circle Dia. | OD | Dynamic Load Capacity | Static Load Capacity, lbs. | Temperature Range, ° F | For Shaft Material | No. of | Dia. | Each | |
Self Aligning with 0.5° Misalignment Capability | |||||||||||||||
Frelon-Lined 6061 Aluminum Bearings with 6061 Aluminum Housing | |||||||||||||||
1/2" | 0.0005" | 3 3/8" | 1 5/8" | 1 5/8" | 1/4" | 1 3/4" | 1 1/4" | 300 lbs. @ 100 fpm | 3,900 | -400° to 400° | Ceramic-Coated Aluminum, Stainless Steel, Steel | 4 | 3/16" | 000000000 | 0000000 |
1/2" | 0.0015" | 3 3/8" | 1 5/8" | 1 5/8" | 1/4" | 1 3/4" | 1 1/4" | 300 lbs. @ 100 fpm | 3,900 | -400° to 400° | Ceramic-Coated Aluminum, Stainless Steel, Steel | 4 | 3/16" | 000000000 | 000000 |
Mounted Linear Ball Bearings for Support Rail Shafts

Mount these bearings on a support rail shaft for applications requiring maximum rigidity. End seals keep lubricant in and dirt out. Self-aligning bearings compensate for shaft misalignment.
For technical drawings and 3-D models, click on a part number.
Overall | Load Capacity, lbs. | Mounting Holes | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Lg. | Wd. | Ht. | Center Ht. | Wd. | Dynamic | Static | Temperature Range, ° F | For Shaft Material | No. of | Dia. | Each | |
Acetal Bearings with 6061 Aluminum Housing | |||||||||||||
1 1/4" | 3 3/8" | 4" | 2 31/64" | 1 1/2" | 9/16" | 1,200 | 1,500 | -4° to 176° | Stainless Steel, Steel | 4 | 7/32" | 0000000 | 0000000 |
High-Load Mounted Linear Ball Bearings for Support Rail Shafts

Designed to handle heavy loads, these bearings have higher load capacities than comparable standard mounted linear ball bearings for support rails. Use them for applications that require maximum rigidity. All are self-aligning to compensate for shaft misalignment and have end seals to keep lubricant in and dirt out.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting Holes | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Lg. | Wd. | Ht. | Center Ht. | Wd. | Dynamic Load Capacity, lbs. | Max. Temperature, °F | For Shaft Material | No. of | Dia. | Each | |
Acetal Bearings with Steel Balls in 6061 Aluminum Housing | ||||||||||||
1 1/4" | 3 3/8" | 4" | 2 9/16" | 1 1/2" | 5/8" | 2,300 | 185° | Steel, Stainless Steel | 4 | 7/32" | 0000000 | 0000000 |
Corrosion-Resistant Mounted Linear Ball Bearings for Support Rail Shafts

Outdoor as well as mild chemical environments are no problem for these bearings. They have stainless steel balls for corrosion resistance. Mount them on a support rail shaft for applications requiring maximum rigidity. They are self-aligning to compensate for shaft misalignment.
For technical drawings and 3-D models, click on a part number.
Overall | Load Capacity, lbs. | Mounting Holes | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Lg. | Wd. | Ht. | Center Ht. | Wd. | Dynamic | Static | Temperature Range, °F | For Shaft Material | No. of | Dia. | Each | |
Self Aligning with 1° Misalignment Capability | |||||||||||||
Acetal Bearings with Stainless Steel Balls in 6061 Aluminum Housing | |||||||||||||
1 1/4" | 3 3/8" | 4" | 2 1/2" | 1 1/2" | 19/32" | 1,200 | 1,500 | -4° to 176° | Stainless Steel, Steel | 4 | 7/32" | 0000000 | 0000000 |
Mounted Linear Sleeve Bearings for Support Rail Shafts

Virtually maintenance free, these bearings have slippery, chemical-resistant liners that don't require added lubrication. Mount them on a support rail shaft for applications requiring maximum rigidity.
Bearings with 0.0005" shaft clearance are best for precision applications. Bearings with 0.001" or 0.0015" shaft clearance are less likely to bind on your shaft than bearings with 0.0005" shaft clearance.
Self Aligning—Bearings compensate for shaft misalignment.
Frelon liners are stronger and more wear resistant than PTFE liners.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting Holes | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Shaft Clearance | Lg. | Wd. | Ht. | Center Ht. | Wd. | Dynamic Load Capacity | Static Load Capacity, lbs. | Temperature Range, ° F | For Shaft Material | No. of | Dia. | Each | |
Self Aligning | ||||||||||||||
Frelon-Lined 6061 Aluminum Bearings with 6063 Aluminum Housing | ||||||||||||||
1 1/4" | 0.0005" | 3 3/8" | 4" | 2 1/2" | 1 1/2" | 5/8" | 800 lbs. @ 100 fpm | 10,000 | -400° to 400° | Steel | 4 | 7/32" | 00000000 | 0000000 |
1 1/4" | 0.0015" | 3 3/8" | 4" | 2 1/2" | 1 1/2" | 5/8" | 800 lbs. @ 100 fpm | 10,000 | -400° to 400° | Steel | 4 | 7/32" | 00000000 | 000000 |
Flange-Mounted Linear Bearing Housings

Slide up to two linear ball or sleeve bearings into these housings and secure them with the included internal retaining rings.
Housings for two bearings give you better running accuracy and alignment than using two separate pillow blocks.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting Holes | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
For Bearing OD | For Max. Bearing Lg. | Lg. | Wd. | Ht. | Flange Thick. | OD | No. of | Dia. | Each | |
6061 Aluminum | ||||||||||
For Two Bearings | ||||||||||
7/8" | 1 1/4" | 3 3/8" | 1 5/8" | 1 5/8" | 1/4" | 1 1/4" | 4 | 3/16" | 0000000 | 000000 |
Precision Acme Lead Screws and Nuts

Pair with a motor in automated motion and positioning applications. A tight thread fit allows these lead screws and nuts to make accurate, repeatable starts and stops. Also known as single-start and self-locking lead screws and nuts, they have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won’t unexpectedly move when the lead screw is at rest. To ensure compatibility, please select components that have the same thread direction and size.
932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.
Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
For technical drawings and 3-D models, click on a part number.

Combine externally threaded nuts with a flange to create a custom flange nut.
External Thread | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Dia. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Size | Lg. | Thread Fit | Hardness | Dynamic Thrust Load Cap., lbs. | Each | |
673 Bronze | ||||||||||||
2 1/2"-4 | 3 3/8" | 3.375" | 1 | 1:1 | 0.25" | 3 9/64"-12 | 1 9/16" | Class 2C | Brinell 70 | Not Rated | 000000000 | 0000000 |


Thread onto an externally threaded acme nut to create a custom flange nut.
Flange Thread Size | Flange Dia. | Flange Thick. | Bolt Circle Dia. | Flange Hardness | Each | |
1117 Carbon Steel | ||||||
---|---|---|---|---|---|---|
3 9/64"-12 | 5 3/8" | 1 37/64" | 4 3/8" | Brinell 156 | 000000000 | 0000000 |