Mounted Bearing Type Mounted Bearing Type |
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![]() | Two-Bolt Flange Mount |
![]() | Four-Bolt Flange Mount |
Shaft Mount Type Shaft Mount Type |
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Ball Bearing Type Ball Bearing Type |
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Standard | With Retaining Ring |
For Load Direction For Load Direction |
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Mounting Hole Center-to-Center Mounting HoleCenter-to-Center |
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Maximum Speed Maximum Speed |
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Lubrication Lubrication |
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Dynamic Radial Load Capacity Dynamic RadialLoad Capacity | Show |
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Dynamic Radial Load Capacity Dynamic RadialLoad Capacity | Hide |
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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 Ball and Roller Bearings
More
Ball 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 | Specifications Met | Each | |
6204-2Z | 20mm | 47mm | 14mm | Steel | 2,850 | 1,450 | 15,000 | Lubricated | -20° to 230° | ABEC-1 | DIN 625-1 | 00000000 | 00000 |
Hex-Bore Ball Bearings


Mount these bearings onto a hex shaft. All have an extended inner ring for additional shaft support. Seals keep out dust and contaminants.
For technical drawings and 3-D models, click on a part number.
Inner Ring | Radial Load Cap., lbs. | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Wd. | Hex Wd. | For Housing ID | Wd. | OD | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Sealed | |||||||||||||||
204 | 11/16" | 0.695" | 1.8504" | 0.551" | 1.166" | 0.827" | Steel | 2,850 | 1,500 | 6,000 | Not Required | -40° to 250° | ABEC-1 | 000000 | 000000 |
Self-Aligning Ball Bearings


With a spherical raceway and two rows of balls, these bearings compensate for shaft misalignment.
Open bearings dissipate heat more efficiently than sealed bearings.
Sealed bearings block out dust and other contaminants better than open bearings, but retain more heat.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia., mm | For Housing ID, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Misalignment Capability | Temp. Range, °F | ABEC Rating | Each | |
Open | |||||||||||||
1204 | 20 | 47 | 14 | Steel | 2,850 | 760 | 20,000 | Lubricated | 2.5° | -30° to 210° | ABEC-1 | 0000000 | 000000 |
Sealed | |||||||||||||
2204-2RS | 20 | 47 | 18 | Steel | 2,850 | 760 | 10,000 | Lubricated | 1.5° | -30° to 210° | ABEC-1 | 0000000 | 000000 |
2303-2RS | 17 | 47 | 19 | Steel | 2,850 | 760 | 11,000 | Lubricated | 1.5° | -30° to 210° | ABEC-1 | 0000000 | 000000 |
Electrically Insulated Ball Bearings

Good for use in electric motors and power generators, these bearings have ceramic balls that insulate against stray current to prevent damage to the bearing. The ceramic balls generate less heat than steel balls, so they require lubrication less frequently. Shields keep out dust and contaminants.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia., mm | For Housing ID, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Shielded | ||||||||||||
6204-2Z | 20 | 47 | 14 | Steel | 2,850 | 1,250 | 22,500 | Lubricated | -20° to 250° | ABEC-1 | 0000000 | 0000000 |
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 | ||||||||||||||
ER10 | 5/8" | 1.8504" | 5/8" | 1.115" | 1.219" | 2.063" | 0.042" | 2,850 | 1,450 | 5,000 | -20° to 250° | Not Rated | 0000000 | 000000 |
ER12 | 3/4" | 1.8504" | 5/8" | 1.115" | 1.219" | 2.063" | 0.042" | 2,850 | 1,450 | 5,000 | -20° to 250° | Not Rated | 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.
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. | 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 | Temp. Range, °F | ABEC Rating | Each | |
Steel Ring | ||||||||||||||
Shielded | ||||||||||||||
80mm | 100mm | 10mm | 2,850 | 2,950 | Not Rated | Not Rated | Not Rated | Not Rated | 12,700 | Lubricated | -40° to 150° | ABEC-1 | 00000000 | 0000000 |
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 | ||||||||||||
3/4" | 1" | 5/8" | Steel | 2,850 | 3,950 | 14,500 | Required | 8 | -40° to 280° | __ | 0000000 | 00000 |
20mm | 26mm | 16mm | Steel | 2,850 | 4,500 | 12,000 | Required | 8 | -40° to 280° | DIN 618, ISO 3245 | 0000000 | 0000 |
Sealed—One Side | ||||||||||||
3/4" | 1" | 11/16" | Steel | 2,850 | 3,950 | 10,000 | Lubricated | 8 | -20° to 210° | __ | 00000000 | 00000 |
20mm | 26mm | 18mm | Steel | 2,850 | 4,500 | 8,500 | Lubricated | 8 | -20° to 210° | DIN 618, ISO 3245 | 0000000 | 00000 |
Sealed—Both Sides | ||||||||||||
3/4" | 1" | 3/4" | Steel | 2,850 | 3,950 | 10,000 | Lubricated | 8 | -20° to 210° | __ | 00000000 | 00000 |
20mm | 26mm | 20mm | Steel | 2,850 | 4,500 | 8,500 | Lubricated | 8 | -20° to 210° | DIN 618, ISO 3245 | 0000000 | 00000 |
Mounted Ball Bearings
Bearings are self-aligning to compensate for shaft misalignment. Seals block out dust and contaminants.
Bearings with eccentric lock have a collar that you twist in one direction to grip and the other to release. Compared to bearings with a set screw, they’re easier to install, require less adjustment over time, and are better for high-speed applications. But, they only work on shafts that spin in one direction.
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: Eccentric Lock | |||||||||||||||
3/4" | 1 1/4" | 2 15/32" | 5" | 1 19/32" | 3/4" | 1/2" | 3 3/4" | 2,850 | 1,450 | 8,500 | -20° to 210° | Self Aligning | Lubricated | 0000000 | 000000 |
20mm | 33.3mm | 65mm | 127mm | 39.5mm | 20.5mm | 11.5mm | 97mm | 2,850 | 1,450 | 8,500 | -20° to 210° | Self Aligning | Lubricated | 00000000 | 000000 |
20mm | 33.3mm | 65mm | 127mm | 42.6mm | 20.5mm | 11.5mm | 97mm | 2,850 | 1,450 | 8,500 | -20° to 210° | Self Aligning | Lubricated | 00000000 | 00000 |
Permanently Lubricated Mounted Ball Bearings

A solid polymer lubricant surrounds the balls, eliminating the need for additional lubrication. 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. | 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 | |||||||||||||||
3/4" | 1 5/16" | 2 9/16" | 5" | 1 15/32" | 25/32" | 7/16" | 3 25/32" | 2,850 lbs. | 1,500 lbs. | 6,400 | 10° to 175° | Self Aligning | Lubricated | 0000000 | 000000 |
Food Industry Mounted Ball Bearings


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.
Sealed bearings block out dust and other contaminants better than shielded 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. | 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 | Each | ||
Sealed Steel Bearings with Plastic Housing | |||||||||||||||||
Shaft Mount Type: Set Screw | |||||||||||||||||
3/4" | 1 5/16" | 2 1/2" | 4 31/32" | 1 11/32" | 21/32" | 29/64" | 4" | 2,850 | 1,450 | 1,100 | -20° to 160° | Self Aligning | Lubricated | 0000000 | 000000 | 0000000 | 00000 |
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.
Bearings with an eccentric-lock shaft mount are better than bearings with a set-screw shaft mount for high-speed applications, but only rotate in a single direction.
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" | 2 3/8" | 4 7/16" | 1 15/32" | 7/16" | 7/16" | 3 17/32" | 2,850 | 1,450 | 8,500 | -20° to 210° | Self Aligning | Lubricated | 0000000 | 000000 |
Shaft Mount Type: Eccentric Lock | ||||||||||||||
20mm | 60.5mm | 112mm | 42.5mm | 11mm | 11.5mm | 90mm | 2,850 | 1,450 | 8,500 | -20° to 210° | Self Aligning | Lubricated | 00000000 | 000000 |
Low-Profile Mounted Ball Bearings with Two-Bolt Flange

Designed with a thin, compact housing, these bearings are good for space-constrained applications. Seals block out dust and contaminants.
Steel bearings are stronger than stainless steel bearings, but not as corrosion resistant.
Self-aligning bearings compensate for shaft misalignment.
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 | Min. Temp. Range, °F | Max. Temp. Range, °F | Alignment Style | Lubrication | Each | |
Sealed Steel Bearings with Steel Housing | |||||||||||||||
Shaft Mount Type: Set Screw | |||||||||||||||
3/4" | 2 5/8" | 3 17/32" | 1 1/64" | 5/32" | 23/64" | 2 13/16" | 2,850 | 1,450 | 5,800 | 0° | 210° | Self Aligning | Lubricated | 0000000 | 000000 |
Food Industry Mounted Ball Bearings with Two-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.
Sealed bearings block out dust and other contaminants better than shielded 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 | Alignment Style | Lubrication | Each | Each | ||
Sealed Steel Bearings with Plastic Housing | ||||||||||||||||
Shaft Mount Type: Set Screw | ||||||||||||||||
3/4" | 2 3/8" | 4 13/32" | 1 15/32" | 19/32" | 29/64" | 3 17/32" | 2,850 | 1,450 | 1,100 | -20° to 160° | Self Aligning | Lubricated | 0000000 | 000000 | 0000000 | 00000 |
Mounted Ball Bearings with Four-Bolt Flange
Bearings are self-aligning to compensate for shaft misalignment. Seals block out dust and contaminants.
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.
Eccentric lock bearings are quick to install—twist them in one direction to tighten and the opposite to loosen. They’re better than set screw bearings for high speed applications, but they only work with shafts that rotate in one direction.
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 |
Shaft Mount Type: Eccentric Lock | ||||||||||||||
20mm | 86mm | 86mm | 43mm | 11mm | 11.5mm | 63.5mm | 2,850 | 1,450 | 8,500 | -20° to 210° | Self Aligning | Lubricated | 0000000 | 000000 |
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.
Sealed bearings block out dust and other contaminants better than shielded 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 |