National Precision Bearing Inch Series NU Self-Lubricating Bearings Over 2" Bore
ISO Quality Registered
Inch Series NU Self-Lubricating Bearings Over 2" Bore
INCH SERIES NU BEARINGS - OVER 2" BORE
Nominal
Bearing
Bore		 Recommended Installed
Bearing
ID*		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length
Shaft
Diam.		 Housing
Diam.		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ
2 1/8 2.1257 2.3118 2.1262 3
2.1239 2.3130 2.1326 34NU48
2 1/4 2.2507 2.4365 2.2509 1 3/4 2 2 1/2 3 3 1/2 3 3/4 4 4 1/2
2.2489 2.4377 2.2573 36NU28 36NU32 36NU40 36NU48 36NU56 36NU60 36NU64 36NU72
2 1/2 2.5011 2.6869 2.5013 1 1 5/8 2 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4
2.4993 2.6881 2.5077 40NU16 40NU26 40NU32 40NU40 40NU48 40NU56 40NU60 40NU64 40NU72 40NU76
2 3/4 2.7500 2.9358 2.7502 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
2.7482 2.9370 2.7566 44NU32 44NU36 44NU40 44DU48 44NU56 44NU60 44NU64 44DU72 44NU76 44NU80
2 7/8 2.8752 3.0610 2.8754 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
2.8734 3.0623 2.8819 46NU32 46NU36 46NU40 46NU48 46NU56 46NU60 46NU64 46NU72 46NU76 46NU80
3 3.0000 3.1858 3.0002 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
2.9982 3.1872 3.0068 48NU32 48NU36 48NU40 48NU48 48NU56 48NU60 48NU64 48NU72 48NU76 48NU80
3 1/4 3.2500 3.4358 3.2502 2 2 3/8 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
3.2480 3.4372 3.2568 52NU32 52NU38 52NU40 52NU48 52NU56 52NU60 52NU64 52NU72 52NU76 52DU80
3 1/2 3.5000 3.6858 3.5002 2 2 3/8 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
3.4978 3.6872 3.5068 56NU32 56NU38 56NU40 56NU48 56NU56 56NU60 56NU64 56NU72 56NU76 56NU80
3 5/8 3.6250 3.8108 3.6252 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
3.6228 3.8122 3.6318 58NU32 58NU36 58NU40 58NU48 56NU56 58NU60 58NU64 58NU72 58NU76 58NU80
3 3/4 3.7500 3.9358 3.7502 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
3.7478 3.9372 3.7568 60NU32 60NU36 60NU40 60NU48 60NU56 60NU60 60NU64 60NU72 60NU76 60NU80
4 4.0000 4.1858 4.0002 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
3.9978 4.1872 4.0068 64NU32 64NU36 64NU40 64NU48 64NU56 64NU60 64NU64 64NU72 64NU76 64NU80
INCH SERIES NU BEARINGS - OVER 2" BORE
Nominal
Bearing
Bore		 Recommended Installed
Bearing
ID*		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length
Shaft
Diam.		 Housing
Diam.		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ
4 1/4 4.2500 4.4358 4.2502 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
4.2478 4.4372 4.2568 68NU32 68NU36 68NU40 68NU48 68NU56 68NU60 68NU64 68NU72 68NU76 68NU80
4 3/8 4.3750 4.5608 4.3752 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
4.3728 4.5622 4.3818 70NU32 70NU36 70NU40 70NU48 70NU56 70NU60 70NU64 70NU72 70NU76 70NU80
4 1/2 4.5000 4.6858 4.5002 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
4.4978 4.6872 4.5068 72NU32 72NU36 72NU40 72NU48 72NU56 72NU60 72NU64 72NU72 72NU76 72NU80
4 3/4 4.7500 4.9358 4.7502 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
4.7475 4.9374 4.7572 76NU32 76NU36 76NU40 76NU48 76NU56 76NU60 76NU64 76NU72 76NU76 76NU80
5 4.9986 5.1844 4.9988 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
4.9961 5.1860 5.0056 80NU32 80NU36 80NU40 80NU48 80NU56 80NU60 80NU64 80NU72 80NU76 80NU80
5 1/4 5.2500 5.4358 5.2502 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
5.2475 5.4374 5.2570 84NU32 84NU36 84NU40 84NU48 84NU56 84NU60 84NU64 84NU72 84NU76 80NU80
5 1/2 5.5000 5.6858 5.5002 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
4.4975 5.6874 5.5070 88NU32 88NU36 88NU40 88NU48 84NU56 88NU60 88NU64 88NU72 88NU76 88NU80
5 3/4 5.7500 5.9358 5.7502 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
5.7475 5.9374 5.7570 92NU32 92NU36 92NU40 92NU48 84NU56 92NU60 92NU64 88NU72 92NU76 92NU80
6 6.0000 6.1858 6.0002 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
5.9975 6.1874 6.0070 96NU32 96NU36 96NU40 96NU48 96NU56 96NU60 96NU64 96NU72 96NU76 96NU80
6 1/4 6.2500 6.4358 6.2502 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
6.2475 6.4374 6.2570 100NU32 100NU36 100NU40 100NU48 100NU56 100NU60 100NU64 100NU72 100NU76 100NU80
6 1/2 6.5000 6.6858 6.5002 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
6.4975 6.6874 6.5070 104NU32 104NU36 104NU40 104NU48 100NU56 104NU60 104NU64 104NU72 100NU76 104NU80
6 3/4 6.7500 6.9358 6.7502 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
6.7475 6.9374 6.7570 108NU32 108NU36 108NU40 104NU48 108NU56 108NU60 108NU64 104NU72 108NU76 108NU80
7 6.9954 7.1812 6.9956 2 2 1/4 2 1/2 3 3 1/2 3 3/4 4 4 1/2 4 3/4 5
6.9929 7.1830 7.0026 112NU32 112NU36 112NU40 112NU48 112NU56 112NU60 112NU64 112NU72 112NU76 112NU80
INCH SERIES NU BEARINGS - OVER 2" BORE
Nominal
Bearing
Bore		 Recommended Installed
Bearing
ID*		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length		 Bearing
Length
Shaft
Diam.		 Housing
Diam.		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ		 NPB
Part No.
RFQ
National Precision Bearing NATIONAL PRECISION BEARING GROUP
of Mechatronics, Inc.

Phone: 800-426-8038 • 425-222-5900 • Fax: 425-222-5950
E-mail: sales@nationalprecision.com

Purchase Order Terms and Conditions

Copyright © 2000, National Precision Bearing, Inc.