21mm Housing ID Bearings | McMaster-Carr

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System of Measurement

Shaft Diameter

OD

Width

Bearing Seal Type

For Housing ID

0.3124" to 0.3130"

0.3749" to 0.3755"

0.3750" to 0.3755"

0.3755" to 0.3764"

0.3760" to 0.3770"

0.4999" to 0.5005"

0.5000" to 0.5005"

0.5000" to 0.5007"

0.5000" to 0.5010"

0.5006" to 0.5017"

0.6250" to 0.6255"

0.6250" to 0.6257"

0.6256" to 0.6267"

0.8740" to 0.8760"

0.8750" to 0.8755"

0.8750" to 0.8758"

0.8758" to 0.8771"

1.1250" to 1.1255"

1.1250" to 1.1258"

1.1258" to 1.1271"

1.2490" to 1.2510"

1.2500" to 1.2505"

1.2500" to 1.2510"

1.2510" to 1.2525"

1.5615" to 1.5635"

1.5625" to 1.5630"

1.5625" to 1.5635"

1.5635" to 1.5650"

2.0000" to 2.0008"

2.0000" to 2.0010"

2.0000" to 2.0012"

2.0012" to 2.0030"

2.3750" to 2.3760"

2.3750" to 2.3762"

2.3762" to 2.3780"

3.0000" to 3.0010"

3.0000" to 3.0012"

3.0012" to 3.0030"

3.7500" to 3.7510"

7.000 mm to 7.015 mm

8.000 mm to 8.015 mm

10.000 mm to 10.018 mm

12.000 mm to 12.018 mm

12.016 mm to 12.043 mm

15.000 mm to 15.018 mm

16.000 mm to 16.015 mm

16.000 mm to 16.018 mm

16.000 mm to 16.035 mm

16.016 mm to 16.043 mm

17.000 mm to 17.018 mm

19.000 mm to 19.021 mm

21.000 mm to 21.021 mm

22.000 mm to 22.021 mm

22.000 mm to 22.018 mm

22.000 mm to 22.026 mm

22.020 mm to 22.053 mm

23.000 mm to 23.021 mm

24.000 mm to 24.021 mm

26.000 mm to 26.021 mm

26.000 mm to 26.018 mm

26.000 mm to 26.026 mm

26.003 mm to 26.033 mm

26.020 mm to 26.053 mm

28.000 mm to 28.021 mm

32.000 mm to 32.025 mm

32.000 mm to 32.030 mm

32.004 mm to 32.037 mm

32.025 mm to 32.064 mm

35.000 mm to 35.025 mm

40.000 mm to 40.025 mm

40.000 mm to 40.021 mm

40.000 mm to 40.030 mm

40.004 mm to 40.037 mm

40.025 mm to 40.064 mm

45.000 mm to 45.025 mm

47.000 mm to 47.021 mm

47.000 mm to 47.025 mm

47.000 mm to 47.030 mm

47.004 mm to 47.037 mm

47.025 mm to 47.064 mm

52.000 mm to 52.030 mm

60.000 mm to 60.030 mm

62.000 mm to 62.023 mm

62.000 mm to 62.025 mm

62.000 mm to 62.030 mm

62.005 mm to 62.044 mm

75.000 mm to 75.030 mm

90.000 mm to 90.035 mm

Ball Bearing Profile

Bearing Type

For Load Direction

Combined Radial and Thrust

Combined Radial, Thrust, and Moment

ID

Ring Material

Stainless Steel

Cage Material

Stainless Steel

Bearing Trade Number

Ball Material

Stainless Steel

Roller Bearing Type

Shaft Mount Type

Bearing Construction

Shaft Type

Dynamic Radial Load Capacity

Less than 10,000 lb.

Inner Ring Type

Static Radial Load Capacity

Less than 10,000 lb.

Lubricant

DFARS Specialty Metals

Export Control Classification Number (ECCN)

REACH

RoHS

How can we improve?

55 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

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

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