| Dimensions (metric) | d | 55 | ![]() |
| F | 70.5 | ||
| D | 120 | ||
| B | 29 | ||
| Approx. Wgt. lbs | 3.600 | ||
| Interchange | FAG | NU 311 | |
| HOFF | R 355 E | ||
| Hyatt | A 1311 TS | ||
| Rollway | MUC 311 | ||
| SKF | NU 311 | ||
| STEYR | NU 311 | ||
| Torrington | - | ||
| * "F" dimension equal to FAG and SKF. Other manufacturers "F" dimension may vary. 1) The above series is available with either: Stamped steel or glass fibre cage - No suffix. Machined bronze cage - suffix "M". 2) These bearings are available in C/2, C/3, C/4, W/23 and C/5 internal clearance. 3) Some sizes are available in ABEC #3 (P/6) precision. 4) These bearings are available with tapered bore - suffix "K". Consult factory for availability. | |||
Hot number:FAG K 60×68×25 KOYO 54244 KOYO 30306 ISO 22211 KW33 ISO 636 Timken 9380/9320D+X1S-9380 SKF BA2-0023B SIGMA NMJ 1.1/4 SKF S71909 CE/P4A SKF 21304 Nachi 637-ZZ SKF 23144-2CS5K/VT143 SKF 30x47x8 HMS5 V SKF W 619/5-2Z NOK SC 55 78 12 VMQ
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