| Dimensions (metric) | d | 55 | ![]() |
| D | 120 | ||
| E | 104.5 | ||
| B | 29 | ||
| Approx. Wgt. lbs | 3.600 | ||
| Interchange | FAG | N 311 | |
| HOFF | R 355 | ||
| Hyatt | BU 1311 Z | ||
| Rollway (Bronze Cage) | MCS 311 | ||
| Rollway (Steel Cage) | RCS 311 | ||
| SKF | N 311 | ||
| STEYR | N 311 | ||
| Torrington | - | ||
| * "E" dimension equal to FAG and SKF. Other manufacturers "E" dimensions may vary. 1) The above series is available with either: Stamped steel or glass fibre cage - No suffix. Machined bronze cage - suffix "M". 2) Sizes are also available with higher radial load capacity - suffix "E". 3) These bearings are available in C/2, C/3, C/4, W/23 and C/5 internal clearance. 4) Some sizes are available in ABEC #3 (P/6) precision. | |||
| Model No. | Inner Diameter | Outer Diameter | Width | Brand | Type |
| 31593/31521 | 34,925 | 76,2 | 29,37 | Timken | Tapered Roller Bearings |
|---|---|---|---|---|---|
| 5202AN | 15 | 35 | 15.9 | NACHI | Angular Contact Ball Bearings |
| 61836M | 180 | 225 | 22 | SIGMA | Deep Groove Ball Bearings |
| 6996 | 480 | 650 | 78 | NTN | Deep Groove Ball Bearings |
| 7201 A | 12 | 32 | 10 | CX | Angular Contact Ball Bearings |
| AST40 F15170 | 15 | 17 | AST | Plain Bearings | |
| BCH910 | 14,288 | 20,638 | 15,875 | INA | Needle Roller Bearings |
| E9 | 9 | 28 | 8 | CX | Deep Groove Ball Bearings |
| GEK30XS-2RS | 30 | 70 | 47 | FBJ | Plain Bearings |
| NJ356 E | 280 | 580 | 108 | CX | Cylindrical Roller Bearings |
| NN3006 K | 30 | 55 | 19 | CX | Cylindrical Roller Bearings |
| UKTX10+H2310 | 45 | NACHI | Bearing Units | ||
| WC87013 | 13,000 | 32,000 | 12,700 | NTN | Deep Groove Ball Bearings |
| FAX1.5 | 1.5 | 4 | 1.2 | ADR | DEEP GROOVE BALL BEARINGS |
| TP-178 | American | THRUST ROLLER BEARINGS | |||
| 682XZZS | 2.5 | 6 | 2.6 | ISC | DEEP GROOVE BALL BEARINGS |
| 6211Z | 55 | 100 | 21 | FAG | DEEP GROOVE BALL BEARINGS |
| RLS-10-2RS | 1.2500 | 2.7500 | .6875 | SKF | DEEP GROOVE BALL BEARINGS |
| RK1706X | .0550 | .1875 | .1094 | RMB | DEEP GROOVE BALL BEARINGS |
| 6311.RS | 55 | 120 | 29 | SKF | DEEP GROOVE BALL BEARINGS |
Hot number:NTN 30232 ISB 61914-2RS NACHI 7234B NACHI 850/832 AST AST11 WC14 NACHI NF 328 JNS NK68/25 KOYO NUP224 KOYO UCP204-12 INA W1-1/2 HOFF 380DR HOFF R410P SKF SN316with21316 KAYDON JB020CPO CONSOLIDATED KF-60XPO NSK 53426X Fersa 539/532A ISO 6221-2RS CRAFT 6317ZZ CRAFT CRF-30312 A ISO 7219 CDT CYSD 7226C Timken AX 5 30 47 KOYO BK2512 Timken G1112KLLB SIGMA GAZ 212 SA JNS NA 4910 HOFF M10CDS RIV 15AK STEYR 51311
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