Extra Small Ball Bearings and Miniature Ball Bearings Metric Series
| Designations | Boundary Dimensions | Basic Load Ratings | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Limiting Speeds | |||||||||||
| d | D | B | r (min.) | r1 (min.) | Cr | C0r | Grease | Oil (Oil-bath) | |||
| mm | mm | mm | mm | mm | N | N | min-1 | min-1 | |||
| square | 681 | 1 | 3 | 1 | 0.05 | 88 | 23 | 130000 | 150000 | ||
| square | MR31 | 1 | 3 | 1.5 | 0.05 | 88 | 23 | 130000 | 150000 | ||
| square | 691 | 1 | 4 | 1.6 | 0.1 | 153 | 36 | 100000 | 120000 | ||
| square | MR41X | 1.2 | 4 | 1.8 | 0.1 | 153 | 35 | 110000 | 130000 | ||
| square | MR41XZZ | 1.2 | 4 | 2.5 | 0.1 | 153 | 35 | 110000 | |||
| square | 681X | 1.5 | 4 | 1.2 | 0.05 | 124 | 33 | 100000 | 120000 | ||
| square | 681XZZ | 1.5 | 4 | 2 | 0.05 | 124 | 33 | 100000 | |||
| square | 691X | 1.5 | 5 | 2 | 0.15 | 262 | 69 | 85000 | 100000 | ||
| square | 691XZZ | 1.5 | 5 | 2.6 | 0.15 | 262 | 69 | 85000 | |||
| square | 601X | 1.5 | 6 | 2.5 | 0.15 | 365 | 98 | 75000 | 90000 | ||
| square | 601XZZ | 1.5 | 6 | 3 | 0.15 | 365 | 98 | 75000 | |||
| square | 682 | 2 | 5 | 1.5 | 0.08 | 186 | 50 | 85000 | 100000 | ||
| square | MR52B | 2 | 5 | 2 | 0.1 | 206 | 58 | 85000 | 100000 | ||
| square | 682ZZ | 2 | 5 | 2.3 | 0.08 | 186 | 50 | 85000 | |||
| square | MR52BZZ | 2 | 5 | 2.5 | 0.1 | 206 | 58 | 85000 | |||
| square | 692 | 2 | 6 | 2.3 | 0.15 | 365 | 98 | 75000 | 90000 | ||
| square | MR62ZZ | 2 | 6 | 2.5 | 0.15 | 365 | 98 | 75000 | |||
| square | MR62 | 2 | 6 | 2.5 | 0.15 | 365 | 98 | 75000 | 90000 | ||
| square | 692ZZ | 2 | 6 | 3 | 0.15 | 365 | 98 | 75000 | |||
| square | MR72 | 2 | 7 | 2.5 | 0.15 | 425 | 127 | 63000 | 75000 | ||
Back to top