1x3x1.5mm miniature ball bearing MR31 smaller bearing MR41 MR52

bearing MR31 deep groove ball bearings 

 

 

Size	Inner Dimension	Outer Dimension	Width OPEN	Width ZZ/2RS	Dynamic(Cr)	Static(Cor)	Weight(lb)
MR31	1	3	1.5	-	17.98	5.17	0.000088
MR41	1.2	4	1.8	2.5	31.02	7.87	0.00022
MR52	2	5	2	2.5	37.99	11.24	0.000352
MR62	2	6	2.5	2.5	74.19	22.03	0.00066
MR63	3	6	2	2.5	46.76	16.64	0.00044
MR72	2	7	2.5	3	86.55	28.55	0.00099
MR74	4	7	2	2.5	69.69	25.85	0.000484
MR82	2.5	8	2.5	3	125.89	40.24	0.001232
MR83	3	8	2.5	3	125.89	40.24	0.001188
MR84	4	8	2	3	88.80	31.25	0.000792
MR85	5	8	2	2.5	69.69	26.98	0.000572
MR93	3	9	2.5	4	128.14	42.04	0.001606
MR95	5	9	2.5	3	96.67	37.77	0.0011