31 mm Housing ID Bearings | McMaster-Carr

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System of Measurement

Shaft Diameter

OD

Width

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

26.020 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

32.025 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

40.025 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

47.025 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

75.000 mm to 75.030 mm

90.000 mm to 90.035 mm

For Load Direction

Combined Radial, Thrust, and Moment

ID

Shaft Type

Roller Bearing Type

Bearing Seal Type

Maximum Rotation Speed

Bearing Type

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Minimum Temperature

-99° F to 0° F

REACH

RoHS

Dynamic Combined Load Capacity

Less than 10,000 lbf

Static Combined Load Capacity

Less than 10,000 lbf

Roller Material

Shaft Mount Type

Maximum Temperature

Less than 250° F

Lubrication

Bearing Construction

Ring Material

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About Ball and Roller Bearings

More

Thin-Profile Crossed-Roller Bearings

For a more compact machine, these bearings have thinner inner and outer rings than high-load crossed-roller bearings. Route hydraulic lines, electrical wiring, and other components through the inside of the bearing. The rollers face in alternating directions to allow for rigid, accurate motion under any combination of radial, thrust, and moment (twisting) loads. Use in applications where highly accurate motion is necessary, such as machine tools and industrial robots.

Open bearings dissipate heat more efficiently than sealed bearings.

For technical drawings and 3-D models, click on a part number.

				Combined Load Cap., lbs.
For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F		Each
Open

20	31	5	Steel	310	290	2,900	Required	0° to 230°	0000000	0000000

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