18mm OD Bearings | McMaster-Carr

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System of Measurement

Shaft Diameter

OD

1/2" to 3 3/16"

1/2" to 20 1/2"

3/4" to 13 3/4"

7/8" to 11 7/8"

7/8" to 14 3/4"

7/8" to 23 5/8"

1 1/32" to 8 5/8"

1 1/32" to 9 7/8"

1 1/32" to 11 1/32"

1 1/32" to 11 7/8"

1 1/4" to 4 1/2"

1 1/2" to 4 1/4"

1 1/2" to 11 7/8"

1 1/2" to 15 3/4"

1 1/2" to 17 3/4"

1 1/2" to 19 3/4"

2 1/4" to 7 1/4"

2 1/4" to 15 3/4"

2 1/2" to 5 3/4"

2 3/4" to 9 1/2"

3 1/4" to 11 3/4"

4 1/4" to 14 3/4"

Width

ID

Ball Bearing Profile

Bearing Seal Type

For Housing ID

Bearing Type

Cage Material

Stainless Steel

Material

Stainless Steel

Length

Shaft Mount Type

Ball Material

440C Stainless Steel

Bearing Construction

For Load Direction

Combined Radial and Thrust

Plain Bearing Type

Lubrication

Bearing Trade Number

Maximum Rotation Speed

Shaft Type

Acme Lead Screw

Export Control Classification Number (ECCN)

RoHS

Compliant with Exemptions

REACH

DFARS Specialty Metals

Thickness

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190 Products

Power Transmission

Ball Bearings

Create less friction than other bearings for use at high speeds

Roller Bearings

Roller Bearings

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

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

Sleeve Bearings

Sleeve Bearings

With no moving parts, the plainest type of bearing

Roller Bearing Shaft Liners

Roller Bearing Shaft Liners

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

Bearing Nuts

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

Swivel Joints

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

Rod End Seals

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

Lead Screw Collars

Lead Screw Collars

Position components and limit travel along a lead screw

Fabricating and Machining

Drill Bushings

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

Fastening and Joining

Shims

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

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