6311 deep groove ball bearings specification
| Deep Groove Ball Bearings No. | I.D | O.D | B | |||
| d | d | Open type | ||||
| mm | inch | mm | inch | mm | inch | |
| 6311 | 55 | 2.1653 | 120 | 4.7244 | 29 | 1.1417 |
| Deep Groove Ball Bearings No. | B | Load Rating(KN) | Steel Ball Parameter | |||
| Closed type | Dynamic | Static | No. | Size | ||
| mm | inch | Cr | Cor | mm | ||
| 6311 | 29 | 1.1417 | 71.50 | 45.00 | 8 | 20.638 |
| Deep Groove Ball Bearings No. | Max speed | Weight Kg | ||||
| Grease | Oil | |||||
| r/min | r/min | |||||
| 6311 | 5800 | 6800 | 1.350 | |||
Dimensions of stop groove and stop ring of 6311 bearings
| d (mm) | Groove width b | Groove low fillet radius ro | Stop ring thickness f | Stop ring outer diameter D2 | End cover hole diameter Dx | ||
| 0 | 2 | 3 | average | biggest | average | biggest | smallest |
| 25 - 28 | 20 22 25 | 17 - 20 | 1.35 1.35 1.35 | 0.4 0.4 0.4 | 1.12 1.12 1.12 | 52.7 55.7 57.9 | 53.5 56.5 58.5 |
| 30 - 32 | - - 28 | - 22 - | 1.35 1.35 1.35 | 0.4 0.4 0.4 | 1.12 1.12 1.12 | 60.7 61.7 63.7 | 61.5 62.5 64.5 |
| 35 - 40 | 30 32 - | 25 - 28 | 1.90 1.90 1.90 | 0.6 0.6 0.6 | 1.70 1.70 1.70 | 67.7 70.7 74.6 | 68.5 71.5 76.0 |
| - 45 50 | 35 - 40 | 30 32 35 | 1.90 1.90 1.90 | 0.6 0.6 0.6 | 1.70 1.70 1.70 | 78.6 81.6 86.6 | 80.0 83.0 88.0 |
| - 55 60 | 45 50 - | - 40 - | 1.90 2.70 2.70 | 0.6 0.6 0.6 | 1.70 2.46 2.46 | 91.6 96.5 101.6 | 93.0 98.0 103.0 |
| 65 70 75 | 55 60 - | 45 50 - | 2.70 2.70 2.70 | 0.6 0.6 0.6 | 2.46 2.46 2.46 | 106.5 116.6 121.6 | 108.0 118.0 123.0 |
| - 80 85 | 65 70 75 | 55 - 60 | 3.10 3.10 3.10 | 0.6 0.6 0.6 | 2.82 2.82 2.82 | 129.7 134.7 139.7 | 131.0 136.0 141.0 |
| 90 95 100 | 80 - 85 | 65 - 70 | 3.10 3.10 3.10 | 0.6 0.6 0.6 | 2.82 2.82 2.82 | 149.7 154.7 159.7 | 151.0 157.0 162.0 |
| 105 110 120 | 90 95 100 | 75 80 85 | 3.10 3.50 3.50 | 0.6 0.6 0.6 | 2.82 3.10 3.10 | 169.7 182.9 192.9 | 172.0 185.0 195.0 |
Application of 6311 bearings:
NSAR are widely used in household appliance. micro-motors electrical tools garden machinery, motorcycles,automobiles,medical equipment, sports machinery, textile machinery and agricultural machinery.
Advantages of 6311 bearing:
The deep groove ball bearings we manufacture are all low noise,low vibration,low friction, high precision, high sealed,high turning speed and long life.
Quality assurance certificate of 6311 deep groove ball bearings:
Quality is the key point for the NSAR. bearing’s growth and development, which always regards the improvement of high quality and service as the long-term-development strategy. NSAR has passed IS09001: 2000, 1S09001: 2008, and will struggle for the NSAR in long term.
