3" Bearings | McMaster-Carr

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System of Measurement

Shaft Diameter

3/16" to 2 3/4"

1/4" to 1 3/16"

5/16" to 11/32"

11/32" to 7/16"

3/4" to 1 3/16"

1 1/8" to 2 3/4"

1 3/16" to 1 5/8"

1 3/8" to 1 7/8"

1 3/4" to 2 1/4"

2 1/4" to 4 3/8"

2 3/8" to 6 1/8"

3 7/8" to 7 7/8"

OD

ID

Bearing Type

For Load Direction

Combined Radial and Thrust

Combined Radial, Thrust, and Moment

Mounted Bearing Type

Four-Bolt Flange Mount

Bearing Seal Type

Width

Shaft Mount Type

Static Radial Load Capacity

Less than 10,000 lb.

10,000 lb. to 99,999 lb.

Length

Dynamic Radial Load Capacity

Less than 10,000 lb.

10,000 lb. to 19,999 lb.

For Housing ID

Material

863 Iron Copper

Stainless Steel

Plain Bearing Type

Maximum Rotation Speed

Ball Bearing Profile

With Retaining Ring

Dynamic Thrust Load Capacity

Less than 10,000 lb.

Inner Ring Type

Roller Bearing Type

Lubrication

Export Control Classification Number (ECCN)

RoHS

REACH

DFARS Specialty Metals

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38 Products

Power Transmission

Ball Bearings

Create less friction than other bearings for use at high speeds

Mounted Bearings

Mounted Bearings

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

Roller Bearings

Roller Bearings

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

Sleeve Bearings

Sleeve Bearings

With no moving parts, the plainest type of bearing

Thrust Bearings

Thrust Bearings

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

Flanged Sleeve Bearings

Flanged Sleeve Bearings

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

Thrust Roller Bearing Washers

Thrust Roller Bearing Washers

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

Pulley and Sprocket Bushings

Pulley and Sprocket Bushings

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

Material Handling

Screw Conveyors

Screw Conveyors

Push material through fixed troughs

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