Four-Point Contact Ball Bearings
| Designations | Boundary Dimensions | Basic Load Ratings | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Limiting Speeds | ||||||||||
| d | D | B | r (min.) | Ca | C0a | Grease | Oil (Oil-bath) | |||
| mm | mm | mm | mm | N | N | min-1 | min-1 | |||
| square | QJ206 | 30 | 62 | 16 | 1 | 34000 | 45000 | 8500 | 12000 | |
| square | QJ306 | 30 | 72 | 19 | 1.1 | 51000 | 63000 | 8000 | 11000 | |
| square | QJ207 | 35 | 72 | 17 | 1.1 | 45000 | 61500 | 7500 | 10000 | |
| square | QJ307 | 35 | 80 | 21 | 1.5 | 60500 | 80000 | 7100 | 9500 | |
| square | QJ208 | 40 | 80 | 18 | 1.1 | 53500 | 77500 | 6700 | 9000 | |
| square | QJ308 | 40 | 90 | 23 | 1.5 | 74000 | 100000 | 6300 | 8500 | |
| square | QJ209 | 45 | 85 | 19 | 1.1 | 60000 | 88500 | 6300 | 8500 | |
| square | QJ309 | 45 | 100 | 25 | 1.5 | 96000 | 133000 | 5600 | 7500 | |
| square | QJ210 | 50 | 90 | 20 | 1.1 | 63000 | 97000 | 5600 | 8000 | |
| square | QJ310 | 50 | 110 | 27 | 2 | 112000 | 159000 | 5000 | 6700 | |
| square | QJ211 | 55 | 100 | 21 | 1.5 | 78000 | 122000 | 5300 | 7100 | |
| square | QJ311 | 55 | 120 | 29 | 2 | 130000 | 187000 | 4500 | 6300 | |
| square | QJ212 | 60 | 110 | 22 | 1.5 | 94000 | 150000 | 4800 | 6300 | |
| square | QJ312 | 60 | 130 | 31 | 2.1 | 148000 | 217000 | 4300 | 5600 | |
| square | QJ213 | 65 | 120 | 23 | 1.5 | 107000 | 179000 | 4300 | 6000 | |
| square | QJ313 | 65 | 140 | 33 | 2.1 | 168000 | 250000 | 3800 | 5300 | |
| square | QJ214 | 70 | 125 | 24 | 1.5 | 117000 | 197000 | 4000 | 5600 | |
| square | QJ314 | 70 | 150 | 35 | 2.1 | 189000 | 285000 | 3600 | 5000 | |
| square | QJ215 | 75 | 130 | 25 | 1.5 | 121000 | 212000 | 3800 | 5300 | |
| square | QJ315 | 75 | 160 | 37 | 2.1 | 206000 | 320000 | 3400 | 4800 | |
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