Steel Ball Bearings | McMaster-Carr

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Cage Material

Stainless Steel

Ball Material

Stainless Steel

System of Measurement

Shaft Diameter

OD

Bearing Seal Type

Width

Ball Bearing Profile

With Retaining Ring

ID

Bearing Trade Number

Bearing Type

For Load Direction

Combined Radial and Thrust

Combined Radial, Thrust, and Moment

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"

Bearing Construction

Ring Material

440C Stainless Steel

Material

Stainless Steel

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

REACH

DFARS Specialty Metals

Housing Material

Stainless Steel

Bearing Material

Stainless Steel

Washer Material

410 Stainless Steel

Roller Material

Polyurethane Rubber

Stainless Steel

Carriage Material

Stainless Steel

Shaft Mount Type

Concentric Lock

How can we improve?

6,100 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

Light Duty Ball Bearings

Light Duty Ball Bearings

Reduce friction between rotating parts that don't require high speed or precision

Flanged Ball Bearings

Flanged Ball Bearings

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

High-Precision Ball Bearings

High-Precision Ball Bearings

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

Angular Contact Ball Bearings

Angular Contact Ball Bearings

Support radial and thrust loads at the same time

Ball Bearings for Food and Beverage

Ball Bearings for Food and Beverage

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

Quick-Mount Ball Bearings

Quick-Mount Ball Bearings

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

Light Duty Flanged Ball Bearings

Light Duty Flanged Ball Bearings

Reduce friction and resist thrust loads in parts that don't require high speed or precision

Self-Aligning Ball Bearings

Self-Aligning Ball Bearings

The balls rock back and forth to compensate for misalignment

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

Four-Point Angular Contact Ball Bearings

Four-Point Angular Contact Ball Bearings

Support complex movement in multiple directions

Electrically Insulating Ball Bearings

Electrically Insulating Ball Bearings

Ceramic balls insulate against stray currents that can damage bearings

Ball Bearings with Retaining Ring

Ball Bearings with Retaining Ring

Install without complicated tools

High-Load Dry-Running Ball Bearings

High-Load Dry-Running Ball Bearings

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

High-Precision Angular Contact Ball Bearings

High-Precision Angular Contact Ball Bearings

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

Dry-Running Flanged Ball Bearings

Dry-Running Flanged Ball Bearings

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

One-Way-Locking Ball Bearings

One-Way-Locking Ball Bearings

Prevent shafts from reversing direction

Tapered-Bore Ball Bearings

Tapered-Bore Ball Bearings

Mount on tapered shafts

Hex-Bore Ball Bearings

Hex-Bore Ball Bearings

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

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

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

Light Duty Ball Bearings with Retaining Ring

Light Duty Ball Bearings with Retaining Ring

Install by hand in parts that don't require high speed or precision

Square-Bore Ball Bearings

Square-Bore Ball Bearings

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

Other Products

Thrust Bearings

Thrust Bearings

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

Steel

Strong, machinable, and weldable—all with material certificates for traceability

Roller Bearings

Roller Bearings

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

Stainless Steel

Stainless Steel

Resists corrosion and chemicals in most environments—all with material certificates for traceability

Mounted Bearings

Mounted Bearings

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

Linear Bearings

Linear Bearings

Minimize friction as parts move along a shaft

Ball Transfers

Install in arrays to create platforms for conveying, rotating, and positioning heavy objects

Track Rollers

Support and carry objects as they move along conveyor systems

Conveyor Roller Bearings

Conveyor Roller Bearings

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

Guide Rail Carriages

Guide Rail Carriages

Carry loads along guide rails on accurate and repeatable paths in automated systems

Lead and Ball Screw End Supports

Lead and Ball Screw End Supports

Brace and secure the ends of lead screws and ball screws

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 Screws and Nuts

Ball Screws and Nuts

Provide smooth travel where high speeds, accurate positioning, and repeatable movement are required

Drawer Slides

Smoothly guide drawers in and out of cabinets

Roller Screws and Nuts

Roller Screws and Nuts

Create more points of contact to handle much higher loads than ball screws and nuts of the same size

Telescoping Rails

Telescoping Rails

Connect multiple rails to create custom positioning tables or telescoping slides

Turntable Bearings

Turntable Bearings

Support machinery that slowly turns or oscillates, such as a rotating hoist

Positioning Slides

Positioning Slides

A lead screw drives the carriage for accurate positioning in laboratory and production equipment

Air Slides

Convey grippers, printing heads, and other loads back and forth on a carriage

Router Guides

Make precise circular or intricate cuts with routers

Ball Spline Bearings

Ball Spline Bearings

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

T-Slotted Framing and Fittings

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

Conveyor Brakes

Conveyor Brakes

Slow down roller conveyors using friction; also known as pallet brakes

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