Inch-series bearings

Products Data

Unit    

6.350.25

12.70.5

4.7620.1875

0.150.0059

0.150.0059

7.20.2835

7.30.2874

0.150.0059

0.150.0059

11.70.4606

11.90.4685

Bearing no.R188ZZ
Bore diameterd6.35 mm0.25 inch
Outer diameterD12.7 mm0.5 inch
Inner ring widthB4.762 mm0.1875 inch
Outer ring widthC4.762 mm0.1875 inch
Inner ring chamfer dimensionrsi min0.15 mm0.0059 inch
Outer ring chamfer dimensionrse min0.15 mm0.0059 inch
Basic dynamic load ratingCr1080 N
Basic static load ratingCor438 N
Limiting speedGrease48000 min-1
Oil56000 min-1
Abutment and fillet dimensionsda min7.2 mm0.2835 inch
da max7.3 mm0.2874 inch
Da min11.7 mm0.4606 inch
Da max11.9 mm0.4685 inch
rasi max0.15 mm0.0059 inch
rase max0.15 mm0.0059 inch
Ball size × quantity2.000 mm0.0787 inch × 8
Mass (reference)2.03 g

The above values are subject to change without notice for the improvement of products or other purposes. We have prepared this table with sufficient care, and we cannot be held responsible for any damage caused by possible errors or omissions.