4mm Housing ID Bearings | McMaster-Carr

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OD

Shaft Diameter

System of Measurement

Width

Ball Bearing Profile

ID

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

Shaft Mount Type

ABEC Rating

Bearing Construction

Inner Ring Type

Bearing Type

For Load Direction

Lubrication

Ring Material

440C Stainless Steel

Shaft Type

Lubricant

Static Radial Load Capacity

Less than 10,000 lb.

Cage Material

304 Stainless Steel

Flange OD

Bearing Trade Number

DFARS Specialty Metals

Export Control Classification Number (ECCN)

REACH

RoHS

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About Ball and Roller Bearings

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Precision Stainless Steel Ball Bearings

Open

Shielded

Made to tight tolerances, these 440C stainless steel bearings combine speed and accuracy with corrosion resistance.

Open bearings dissipate heat more efficiently than shielded bearings.

Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.

				Radial Load Cap., lbs.
For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
Open
2mm	4mm	1.2mm	440C Stainless Steel	18	4	100,000	Lubricated	-30° to 280°	ABEC-7	0000000	000000
Shielded
1.5mm	4mm	2mm	440C Stainless Steel	19	3	100,000	Lubricated	-30° to 280°	ABEC-7	0000000	00000

Flanged Ball Bearings

The flange ensures proper positioning inside a tube or housing.

440C stainless steel bearings are more corrosion resistant than steel bearings.

Open bearings dissipate heat more efficiently than shielded and sealed bearings.

Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.

Open

Open

Flanged Bearing

				Flange			Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	OD	Thick.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
681	1.5mm	4mm	1.2mm	5mm	0.4mm	440C Stainless Steel	20	5	120,000	Lubricated	-50° to 300°	ABEC-3	000000000	000000
681	1.5mm	4mm	1.2mm	5mm	0.4mm	Steel	20	5	120,000	Lubricated	-50° to 300°	ABEC-3	000000000	00000

Shielded

Shielded

Flanged Bearing

				Flange			Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	OD	Thick.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
681-2Z	1.5mm	4mm	2mm	5mm	0.6mm	440C Stainless Steel	20	5	100,000	Lubricated	-50° to 300°	ABEC-3	000000000	000000

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