Standard Ball and Roller Bearings | McMaster-Carr

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Bearing Type

System of Measurement

Shaft Diameter

OD

Bearing Seal Type

Width

Ball Bearing Profile

With Retaining Ring

ID

Bearing Trade Number

For Load Direction

Combined Radial and Thrust

Combined Radial, Thrust, and Moment

Cage Material

Stainless Steel

Bearing Construction

Shaft Mount Type

Ball Material

Stainless Steel

Material

Stainless Steel

For Housing ID

0.3124" to 0.3130"

0.3749" to 0.3755"

0.3750" to 0.3755"

0.4999" to 0.5005"

0.5000" to 0.5005"

0.5000" to 0.5007"

0.5000" to 0.5010"

0.6250" to 0.6255"

0.6250" to 0.6257"

Shaft Type

Round with Support Rail

Inner Ring Type

Mounted Bearing Type

Four-Bolt Flange Mount

Tapped Base Mount

Three-Bolt Flange Mount

Two-Bolt Flange Mount

Lubrication

Dynamic Radial Load Capacity

Less than 10,000 lb.

10,000 lb. to 19,999 lb.

20,000 lb. to 29,999 lb.

30,000 lb. to 39,999 lb.

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Maximum Rotation Speed

How can we improve?

3,893 Products

Ball Bearings

Ball Bearings

The balls roll nearly friction-free for smooth movement between rotating parts

Permanently Lubricated Ball Bearings

Permanently Lubricated Ball Bearings

Solid lubricant releases oil over time so you never need to add more

Flanged Ball Bearings

Flanged Ball Bearings

The flange presses against a housing wall so thrust loads won't knock them off-kilter

Angular Contact Ball Bearings

Angular Contact Ball Bearings

Support radial and thrust loads at the same time

Quick-Mount Ball Bearings

Quick-Mount Ball Bearings

Slip onto a shaft and secure with the turn of a screw

Self-Aligning Ball Bearings

Self-Aligning Ball Bearings

The balls rock back and forth to compensate for misalignment

Ball Bearings for Food and Beverage

Ball Bearings for Food and Beverage

The FDA-compliant lubricant is safe for food-processing areas

High-Precision Ball Bearings

High-Precision Ball Bearings

The most precise ball bearings we offer, with tolerances tighter than a speck of dust

Four-Point Angular Contact Ball Bearings

Four-Point Angular Contact Ball Bearings

Support complex movement in multiple directions

Dry-Running Ball Bearings

Dry-Running Ball Bearings

Made of slippery plastic so there's no lubricant to maintain or make a mess

Insert Bearings

Insert Bearings

Swap out worn inserts instead of replacing the entire mounted unit

High-Load Dry-Running Ball Bearings

High-Load Dry-Running Ball Bearings

Carry twice as much weight as standard dry-running ball bearings

Ball Bearings with Retaining Ring

Ball Bearings with Retaining Ring

Install without complicated tools

One-Way-Locking Ball Bearings

One-Way-Locking Ball Bearings

Prevent shafts from reversing direction

Dry-Running Flanged Ball Bearings

Dry-Running Flanged Ball Bearings

Don't risk your bearing popping out of place or making a mess

Hex-Bore Ball Bearings

Hex-Bore Ball Bearings

No need for set screws—the inside corners hold tightly to hex shafts

High-Precision Angular Contact Ball Bearings

High-Precision Angular Contact Ball Bearings

Our most precise bearings for tackling radial and thrust loads at once

High-Temperature Graphite-Lubricated Ball Bearings

High-Temperature Graphite-Lubricated Ball Bearings

Keep parts spinning in industrial ovens and other places as hot as 660° F

Electrically Insulating Ball Bearings

Electrically Insulating Ball Bearings

Ceramic balls insulate against stray currents that can damage bearings

Quick-Mount Ball Bearings for Food and Beverage

Quick-Mount Ball Bearings for Food and Beverage

Install in food production areas without using special tools

Tapered-Bore Ball Bearings

Tapered-Bore Ball Bearings

Mount on tapered shafts

High-Precision Flanged Ball Bearings

High-Precision Flanged Ball Bearings

Our most precise flanged ball bearings stay put in their housing when rocked by thrust loads

Square-Bore Ball Bearings

Square-Bore Ball Bearings

The inside corners grip square shafts so you don't need set screws

Other Products

Mounted Bearings

Mounted Bearings

Ball, roller, and sleeve bearings ready to bolt in place

Thrust Bearings

Thrust Bearings

Support loads parallel to the shaft with plain, ball, or roller bearings

Linear Bearings

Linear Bearings

Minimize friction as parts move along a shaft

Conveyor Roller Bearings

Conveyor Roller Bearings

Replace bearings on conveyor rollers, or press into tubing or pipe to create a roller

Track Rollers

Support and carry objects as they move along conveyor systems

Roller Bearings

Roller Bearings

Support higher loads than ball bearings, but run at lower speeds

Wheel Bearings

Reduce friction between the axle and the wheel for smooth movement

Linear Motion Slides

Linear Motion Slides

Move loads on accurate and repeatable paths beyond the mounting surface

Ball Spline Bearings

Ball Spline Bearings

Pair with ball splines for applications requiring complex, fast movements, such as robotics

Router Bit Bearings

Router Bit Bearings

Replace bearings in ball-bearing-piloted router bits

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)