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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extra-thin-series-open-CMYK
Unit of Measure
Items extra-thin-series-open-CMYK
ER1038
0.3750 Inch (in) Bore Diameter (d) Extra Thin Open Metric ER Series Ball Bearing 		extra-thin-series-open-CMYK
ER1212
0.5000 Inch (in) Bore Diameter (d) Extra Thin Open Metric ER Series Ball Bearing 		extra-thin-series-open-CMYK
ER1458
0.6250 Inch (in) Bore Diameter (d) Extra Thin Open Metric ER Series Ball Bearing 		extra-thin-series-open-CMYK
ER1634
0.7500 Inch (in) Bore Diameter (d) Extra Thin Open Metric ER Series Ball Bearing
Bearing Type N/A Extra Thin ER Series Bearing
Bore Diameter (d) N/A 9.525 mm0.3750 in N/A 12.700 mm0.5000 in N/A 15.875 mm0.6250 in N/A 19.050 mm0.7500 in
Outer Diameter (D) N/A 15.875 mm0.6250 in N/A 19.050 mm0.7500 in N/A 22.525 mm0.8750 in N/A 25.400 mm1.0000 in
Width (B) N/A 3.967 mm0.1562 in
Min. Radius (rs) N/A 0.25 mm0.0098 in
Seal N/A TTS
Load Rating (Cr) N/A 857 N N/A 919 N N/A 971 N N/A 1010 N
Load Rating (Cor) N/A 435 N N/A 537 N N/A 620 N N/A 691 N
Max. Speed (Grease) x 10001 N/A 15 rpm N/A 12 rpm N/A 10 rpm N/A 8.5 rpm
Max. Speed (Oil) x 10002 N/A 17.5 rpm N/A 14 rpm N/A 12 rpm N/A 10 rpm
Cage Type N/A
One-piece steel crown type (W)
Qty Z N/A 11 pcs N/A 13 pcs N/A 15 pcs N/A 17 pcs
Size (Dw) N/A 1.588 mm0.0625 in
Weight N/A 2.40 grams N/A 3.01 grams N/A 3.64 grams N/A 4.22 grams
Notes N/A Open type bearings have shield/seal grooves.
  • 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.