3" ID Bearings | McMaster-Carr

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System of Measurement

Shaft Diameter

Bearing Type

For Load Direction

Combined Radial and Thrust

Combined Radial, Thrust, and Moment

Radial

Thrust

Mounted Bearing Type

Base Mount

Four-Bolt Flange Mount

Width

Bearing Seal Type

Static Radial Load Capacity

Less than 10,000 lb.

10,000 lb. to 99,999 lb.

300,000 lb. or greater

Shaft Mount Type

Dynamic Radial Load Capacity

Less than 10,000 lb.

10,000 lb. to 19,999 lb.

Length

For Housing ID

Material

Shaft Type

Plain Bearing Type

Dynamic Thrust Load Capacity

Ball Bearing Profile

Lubrication

Inner Ring Type

Dynamic Radial Load Capacity @ Speed

Export Control Classification Number (ECCN)

RoHS

REACH

DFARS Specialty Metals

Exempt

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62 Products

Power Transmission

Ball Bearings

Create less friction than other bearings for use at high speeds

3 products

Mounted Bearings

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

3 products

Roller Bearings

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

1 product

Sleeve Bearings

With no moving parts, the plainest type of bearing

6 products

Flanged Sleeve Bearings

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

2 products

Thrust Bearings

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

2 products

Swivel Joints

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

3 products

Pulley and Sprocket Bushings

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

5 products

Raw Materials

Bronze

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

15 products

Plastic

A lightweight alternative to metal and glass

15 products

Fastening and Joining

Shims

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

7 products