Inch Bearings | McMaster-Carr

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System of Measurement

Shaft Diameter

Bearing Seal Type

Material

Width

Shaft Mount Type

Ball Bearing Profile

Bearing Type

Mounted Bearing Type

Four-Bolt Flange Mount

Panel Mount

Tapped Base Mount

Thread Mount

Three-Bolt Flange Mount

Two-Bolt Flange Mount

For Load Direction

Combined Radial and Thrust

Combined Radial, Thrust, and Moment

Length

For Housing ID

Inner Ring Type

Cage Material

Shaft Type

Round with Support Rail

Bearing Trade Number

Lubrication

Maximum Rotation Speed

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.

40,000 lb. or greater

REACH

RoHS

Compliant with Exemptions

Not Compliant

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Export Control Classification Number (ECCN)

DFARS Specialty Metals

20,667 Products

Power Transmission

Ball Bearings

Create less friction than other bearings for use at high speeds

709 products

Mounted Bearings

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

846 products

Sleeve Bearings

With no moving parts, the plainest type of bearing

2,231 products

Roller Bearings

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

175 products

Flanged Sleeve Bearings

A sleeve and thrust bearing in one to support both parallel and perpendicular loads

1,238 products

Thrust Bearings

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

735 products

Linear Bearings

Minimize friction as parts move along a shaft

500 products

Turntable Bearings

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

39 products

Thrust Roller Bearing Washers

Adapt needle-roller thrust bearings for use on unhardened, unground surfaces

51 products

Roller Bearing Shaft Liners

Adapt precision needle-roller bearings for use on unhardened, unground shafts

21 products

Linear Bearing Housings

Hold linear ball or sleeve bearings by sliding them in and securing with retaining rings

22 products

Pivot Bearings

Best for applications that require small, precise oscillating motion with limited twisting

20 products

Bearing Housings

Mount your own bearings in place

33 products

Bearing Adapter Sleeves

Close gaps between your bearing and shaft for a tight fit

14 products

Bearing Heaters

For correct installation on shafts, heat bearings to expand them

7 products

Bearing Lock Washers

Lock bearing nuts in place to prevent loosening due to vibration

47 products

Bearing Nuts

Hold bearings, bushings, pulleys, and gears in place on threaded shafts and spindles

110 products

Linear Bearing Brakes

Lock bearings in place on a shaft for precise positioning

6 products

Track Rollers

Support and carry objects as they move along conveyor systems

534 products

Idler Rollers

Guide boxes and parts as they pass through conveyor systems

75 products

Drive Rollers

Transmit power from motors to systems like conveyors; also known as contact wheels and feed rollers

265 products

Air Slides

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

380 products

Electric Actuators

Push and pull loads with more precise positioning than air and hydraulic cylinders

98 products

Electric Slides

Move parts with precision in electronics, robotics, and other automated processes

21 products

Swivel Joints

Handle shaft misalignment where ball joint rod ends won’t fit; also known as spherical bearings

102 products

Rod Ends

Use with connecting rods to support loads and control steering, tensioning, or pivoting motion

1,060 products

Rod End Inserts

Attach to rod ends to increase the amount of misalignment they can handle

24 products

Rod End Seals

Keep dirt out and lubrication in to extend the life of rod ends

8 products

Pulley and Sprocket Bushings

Mount between a rotating shaft and equipment to secure the shaft and reduce vibration

498 products

Positioning Slides

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

63 products

End Supports for Ball Screws and Precision Lead Screws

Brace and secure the ends of ball screws and precision lead screws

13 products

Bore Reducers

Adapt the bore of a component to a smaller size for mounting on a shaft

31 products

Flexible Shaft Coupling Hubs

Pair with spiders, discs, or grids for a complete flexible shaft coupling

14 products

Ball Screws and Nuts

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

149 products

Precision Lead Screws and Nuts

Pair with a motor for accurate starts and stops in automated motion and positioning applications

812 products

Lead Screws and Nuts

Move components in a straight line in clamping and heavy duty lifting and lowering applications

809 products

Carriages and Guide Rails

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

63 products

Lead Screw Collars

Position components and limit travel along a lead screw

48 products

Sleeve Splines and Bearings

Combine sleeve splines and bearings to create linear and rotary motion systems

21 products

Precision Lead Screw Nut Flanges

Pair with precision lead screw nuts to make custom flange nuts that move items along lead screws

18 products

Linear Drive Nuts

Create a linear positioning system on a rotary shaft without a lead screw

3 products

Material Handling

Ball Transfers

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

200 products

Conveyor Roller Bearings

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

39 products

Skate Wheels

Replace wheels on skate wheel conveyors or add wheels for a custom setup

67 products

Conveyor Belt Take-Up Bearings

Use with take-up frames to adjust tension on conveyor belts

14 products

Conveyor Belt Take-Up Frames

Adjust the tension on conveyor belts by extending or retracting pulleys

42 products

Ball Transfer Plates

Rest on flat surfaces to create platforms for conveying, rotating, and positioning heavy objects

25 products

Screw Conveyors

Push material through fixed troughs

120 products

Conveyor Brakes

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

5 products

Ball Transfer Plate Covers

Place a smooth surface over ball transfer plates so small items won't get caught between

18 products

Wheel Bearings

Reduce friction between the axle and the wheel for smooth movement

29 products

Wheel Reducer Bushings

Reduce the inside diameter of a bearing to fit a particular axle size

20 products

Pallet Stands

Hold pallets above the floor at a useful working height

6 products

Dollies

Move everything from large equipment to ladders and pipes

2 products

Fabricating and Machining

Drill Bushings

Fit in holes to guide drill bits and other cutting tools for precise and repeatable holes and cuts

3,306 products

Rotary Tables

Rotate your work 360° for easy access to different angles

16 products

Die Bushings

Guide pins and punches in molds and stamping dies or reduce friction between ejector pins and plates

99 products

Drill Bushing Installation Tools

Get a good grip to press removable drill bushings into fixture plates

9 products

Slotted Bushings

Pair with a standard bushing to prevent alignment pins from binding in your fixture

27 products

Bearing Separators

Separate bearings, collars, hubs, and other shaft-mounted items so you can remove them

10 products

Welding Positioners

Mount workpieces for circular welds

7 products

Router Bit Bearings

Replace bearings in ball-bearing-piloted router bits

3 products

Raw Materials

Steel

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

328 products

Bronze

Better wear resistance than copper and brass—all with material certificates for traceability

498 products

Stainless Steel

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

138 products

Aluminum

Lightweight, easy to machine, and corrosion resistant—all with material certificates for traceability

25 products

Nickel

An upgrade from stainless steel to withstand harsh chemicals and acids—all with material certificates for traceability

10 products

Plastic

A lightweight alternative to metal and glass

262 products

Ceramic

Hard and wear resistant, it also withstands corrosion and high temperatures

36 products

Glass

Clear and highly heat and chemical resistant; often used in sights, lighting, and lab equipment

5 products

Building and Machinery Hardware

Turntables

Rotate to reposition machinery and equipment

93 products

T-Slotted Framing and Fittings

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

71 products

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

9 products

Fastening and Joining

Shims

Align and space components on shafts, or level machinery, cabinets, and doors

3,300 products

Safety Equipment

Bearing Guards

Shield bearings from dirt, and protect fingers and tools from moving parts

14 products