V Groove Guide Wheel Bushings and Bearings from National Precision

V GROOVE GUIDE WHEEL BUSHINGS
Concentric		Adjustable		A	B	C	D	E	NBX Series F
NPB Part No. RFQ per item	Industry Part No.	NPB Part No. RFQ per item	Industry Part No.	A	B	C	D	E	NBX Series F
NB1	N1	NBX1	NX1	.550	.300	.1873	7/16	.140	.012
NB2	N2	NBX2	NX2	.706	.425	.3748	9/16	.250	.024
NB3	N3	NBX3	NX3	.990	.615	.4722	3/4	.312	.042
NB4	N4	NBX4	NX4	1.177	.740	.5904	7/8	.375	.060

V GROOVE GUIDE WHEEL BEARINGS
NPB Part No.	Industry Part No.	Bore +.0000 -.0003	O.D. +/-.005	Width +.0000 -.0050	L1 Ref.	L2 Ref.	R Will Clear Radius	Gage Wire Diam.	Dynamic Radial Load Lbs. Based on avg. life of 2500 hours				Thrust Load Lbs.	Static Radial Load Lbs.
NPB Part No.	Industry Part No.	Bore +.0000 -.0003	O.D. +/-.005	Width +.0000 -.0050	L1 Ref.	L2 Ref.	R Will Clear Radius	Gage Wire Diam.	33.3 RPM	100 RPM	500 RPM	1000 RPM	Thrust Load Lbs.	Static Radial Load Lbs.
NW1	W1	.1875	.771	.3100	.314	.625	.012	.0937	350	245	145	112	65	245
NW1X	W1X	.1875	.771	.3100	.314	.625	.012	.0937	350	245	145	112	65	245
NW1SSX	W1SSX	1875	.771	.3100	.314	.625	.012	.0937	310	218	126	100	55	200
NW2	W2	.3750	1.210	.4375	.530	1.000	.012	.1250	734	487	288	227	122	610
NW2X	W2X	.3750	1.210	.4375	.530	1.000	.012	.1250	734	487	288	227	122	610
NW2SSX	W2SSX	.3750	1.210	.4375	.530	1.000	.012	.1250	562	390	230	183	90	455
NW3	W3	.4724	1.803	.6250	.640	1.500	.024	.1875	1338	925	543	435	535	910
NW3X	W3X	.4724	1.803	.6250	.640	1.500	.024	.1875	1338	925	543	435	535	910
NW3SSX	W3SSX	.4724	1.803	.6250	.640	1.500	.024	.1875	1070	745	434	349	428	705
NW4	W4	.5906	2.360	.7500	.878	2.000	.024	.2500	2055	1405	815	650	655	1235
NW4X	W4X	.5906	2.360	.7500	.878	2.000	.024	.2500	2055	1405	815	650	655	1235
NW4SSX	W4SSX	.5906	2.360	.7500	.878	2.000	.024	.2500	1593	1129	648	520	510	955

Guide wheel bearings are precision ground, double row, angular contact bearings. These bearings are pre-lubricated and available in either 52100 chrome or 440C stainless steel. Although the standard chrome steel version is available either sealed or shielded, the stainless steel design is available sealed only. The concentric and adjustable bushings provide a simple, effective means of adjusting the free play of the guide wheel system.

NATIONAL PRECISION BEARING GROUP
of Mechatronics, Inc.

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

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