GRW High Precision Ball Bearings

Open extended inner ball bearings inch

High precision ball bearings in grades up to ABEC 9 with bores from 1 to 30mm and comparable inch dimensions

General Information

DEEP GROOVE EXTENDED INNER RING OPEN BALL BEARINGS

Inch Series

Bore Ø (d)	Outer Ø (D)	Flange Ø (FD)	Open Width (B)	Open Flange Width (FB)	Radius (rs – min) (2)	Ext Inner Ring Open Part No	Shield Width (B1)	Load Rating Cr (N)	Load Rating Cor (N)	Limiting Speed (6) Nur (x 1000 rpm)	Ball Comple ment Qty.: Z (5)	Ball Comple ment Size: Dw
0.0469	0.1562	0.203	0.0625	0.013	0.003	E1191	0.0937	163	44	129	6	0.0313
0.0550	0.1875	0.234	0.0781	0.023	0.003	E1397	0.1094	239	67	114	6	0.0394
0.0781	0.25	0.296	0.0937	0.023	0.003	E5/64	0.125	286	90	95	7	0.0394
0.0937	0.1875	0.234	0.0625	0.018	0.003	E2380	0.0937	192	59	94	7	0.0313
0.0937	0.3125	0.359	0.1094	0.023	0.005	E3/32	0.1406	644	215	62	7	0.0625
0.1250	0.25	0.296	0.0937	0.023	0.003	E3175	0.125	292	97	80	7	0.0394
0.1250	0.3125	0.359	0.1094	0.023	0.003	E1/8A	0.1406	644	215	65	7	0.0625
0.1250	0.375	0.44	0.1562	0.03	0.012	E1/8B	0.1875	720	260	61	8	0.0625
0.1562	0.3125	0.359	0.1094	0.023	0.003	E3967	0.1406	391	165	62	11	0.0394
0.1562	0.5		0.1094		0.003	E3967/8	0.1406	391	165	69	11	0.0394
0.1875	0.3125	0.359	0.1094	0.023	0.003	E4763A	0.1406	391	165	65	11	0.0394
0.1875	0.375	0.422	0.125	0.023	0.003	E4763B	0.1562	730	271	56	8	0.0625
0.1875	0.5		0.1094		0.003	E4763A/8	0.1406	391	162	70	11	0.0394
0.2500	0.375	0.422	0.125	0.023	0.003	E6350A	0.1562	391	165	54	11	0.0394
0.2500	0.5	0.547	0.125	0.023	0.005	E6350B	0.1562	730	271	38	8	0.0781
0.2500	0.625	0.69	0.196	0.042	0.012	E1/4A	0.2272	1.651	670	43	8	0.0984
0.3125	0.5	0.547	0.1562	0.031	0.005	E7938	0.1875	539	279	45	12	0.0469

Ball bearings without closure may be supplied with recesses. Please advise if you require bearings without recesses.
r_s min = minimum single bearing chamfer or maximum shaft or housing fillet radius.
Not applicable to bearings with extended inner ring.
Not applicable to flanged bearings.
The number of balls may vary due to different types of retainer.
See ‘Limiting Speeds’.
Tolerance of bore +12µm to +3µm.
Available in different width with closure.