Deep groove ball bearing is the most common type of bearing. The basic deep groove ball bearing consists of an outer ring, an inner ring, a set of steel balls and a set of cages. There are two types of deep groove ball bearings, single row and double row. The deep groove ball structure is divided into two types: sealed and open. The open type means that the bearing does not have a sealed structure. The sealed deep groove ball is divided into dust-proof and oil-proof. seal.Deep groove ball bearings can be used in gearboxes, instruments, motors, household appliances, internal combustion engines, transportation vehicles, agricultural machinery, construction machinery, construction machinery, roller skates, yo-yos, etc.
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| Bearing NO. | Dimensions(mm) | Limit Speed Rating（r/min） | Basic Load Rating(k/N) | Weight | ||||
| d | D | B | Grease | Oil | Cr | Cor | kg | |
| 635 | 5 | 19 | 6 | 34000 | 40000 | 2.34 | 0.89 | 0.005 |
| 636 | 6 | 22 | 7 | 33000 | 39000 | 3.35 | 0.14 | 0.024 |
| 637 | 7 | 26 | 9 | 26000 | 32000 | 4.6 | 2 | 0.024 |
| 638 | 8 | 28 | 9 | 25000 | 32000 | 4.6 | 2 | 0.024 |
| 639 | 9 | 30 | 10 | 22000 | 28000 | 6.1 | 2.7 | 0.035 |
| 6300 | 10 | 35 | 11 | 18000 | 24000 | 7.65 | 3.48 | 0.053 |
| 6301 | 12 | 37 | 12 | 17000 | 22000 | 9.72 | 5.08 | 0.06 |
| 6302 | 15 | 42 | 13 | 16000 | 20000 | 11.5 | 5.42 | 0.82 |
| 6303 | 17 | 47 | 14 | 15000 | 18000 | 13.5 | 6.58 | 0.115 |
| 6304 | 20 | 52 | 15 | 13000 | 16000 | 15.8 | 7.88 | 0.142 |
| 6305 | 25 | 62 | 17 | 11000 | 13000 | 20.6 | 11.3 | 0.232 |
| 6306 | 30 | 72 | 19 | 9600 | 12000 | 26.7 | 15 | 0.346 |
| 6307 | 35 | 80 | 21 | 8500 | 10000 | 33.4 | 19.3 | 0.457 |
| 6308 | 40 | 90 | 23 | 7000 | 8500 | 40.8 | 24 | 0.639 |
| 6309 | 45 | 100 | 25 | 6300 | 7500 | 52.8 | 31.8 | 0.837 |
| 6310 | 50 | 110 | 27 | 6300 | 7500 | 62 | 38 | 1.07 |
| 6311 | 55 | 120 | 29 | 5600 | 6700 | 71.5 | 45 | 1.39 |
| 6312 | 60 | 130 | 31 | 5300 | 6300 | 82 | 48.5 | 1.71 |
| 6313 | 65 | 140 | 33 | 4800 | 5600 | 92.5 | 59.5 | 2.1 |
| 6314 | 70 | 150 | 35 | 4500 | 5300 | 104 | 68 | 2.55 |
| 6315 | 75 | 160 | 37 | 4000 | 4800 | 113 | 76.8 | 3.05 |
| 6316 | 80 | 170 | 39 | 3800 | 4500 | 123 | 86.5 | 3.61 |
| 6317 | 85 | 180 | 41 | 3600 | 4300 | 132 | 96.5 | 4.28 |
| 6318 | 90 | 190 | 43 | 3400 | 4000 | 145 | 108 | 4.97 |
| 6319 | 95 | 200 | 45 | 3200 | 3800 | 157 | 122 | 5.74 |
| 6320 | 100 | 215 | 47 | 2800 | 3600 | 173 | 140 | 7.09 |
| 6322 | 110 | 240 | 50 | 2400 | 3000 | 205 | 178 | 9.53 |
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