Item # MR148, 0.3150 Inch (in) Bore Diameter (d) Open Metric Ball Bearing On SPB USA

U.S.A.
SPB USA — 2257 Sarasota Center Blvd. Sarasota, FL 34240
Ph: 941.371.1655 Fx 941.371.1669 Email Us

JAPAN
Sapporo Precision, Inc. - Sapporo, Hokkaido
Kitanihon Seiki Co., Ltd. - Ashibetsu, Hokkaido

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All bearings are available in 52100 Chrome Steel or 440 Stainless Steel.

Unit of Measure

Specifications | Ball Complement

Specifications

Bearing Type	N/A Metric Bearing
Bore Diameter (d)	N/A 8.0 mm0.3150 in
Outer Diameter (D)	N/A 14.0 mm0.5512 in
Flange Diameter (D_f)	N/A 15.6 mm0.6142 in
Min. Radius (r_s)	N/A 0.20 mm0.0079 in
Width (B)	N/A 3.5 mm0.1378 in
Flange Width (B_f)	N/A 0.80 mm0.0315 in
Load Rating (Cr)	N/A 818 N
Load Rating (Cor)	N/A 386 N
Max. Speed (Grease) x 1000¹	N/A 42 rpm
Max. Speed (Oil) x 1000²	N/A 50 rpm
Cage Type	N/A Two-pieces steel ribbon type (J)
Weight	N/A 1.80 grams
Material	N/A 440 Stainless Steel 52100 Chrome Steel

Ball Complement

Qty Z	N/A 10 pcs
Size (Dw)	N/A 1.588 mm0.063 in

¹ Applicable only for open, single Z, ZZ, single RU and 2RU types in inner ring rotating conditions. Max. speeds for the contact rubber seal(s) types will be around 50-60 % of above values.
² Applicable only for open, single Z, ZZ, single RU and 2RU types in inner ring rotating conditions. Max. speeds for the contact rubber seal(s) types will be around 50-60 % of above values.