ABIS Miniature and Precision Ball Bearings
Bearing Numbering System
With bores of 0.6 to 90mm and precision grades to ABEC 7
General Information
Menu
| Â | 1Â | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Â Example 1 | Â | Â | 6800 | H | Â | ZZ | MC2 | 3 | SRL |
| Â Example 2 | S | MR | 74 | Â | W | ZZS | MC3 | P6 | AF2 |
| Â Example 3 | S | FR | 133 | Â | T | Â | MC4 | 1 | SRL |
| Â Example 4 | S | FR | 8 | Â | J | Â | C3 | Â | SRL |
| Â Example 5 | Â | Â | F3-8M | Â | TP | Â | Â | Â | AF2 |
Â
| 1. Materials | Â | Â |
| Carbon Steel – SAE52100 | Â | Â |
| All Types | Â | No symbol |
| Stainless Steel – AISI 440C | Â | Â |
| Â Standard Metric | Â | H |
| Â Imperial & MR Series Metric | Â | S |
| Â | Â | Â |
| 2. Bearing Types |  |  |
| Inch | Â | R |
| Inch, flanged | Â | FR |
| Inch, extended inner |  | RW |
| Inch, extended inner, flanged | Â | FRW |
| Metric (600 series) | Â | No symbol |
| Metric, flanged (600 series)Â | Â | F |
| Metric | Â | MR |
| Extra thin metric type | Â | ET |
| Extra thin inch type | Â | ER |
| Thrust with raceway | Â | FM |
| Thrust without raceway | Â | F |
| Â | Â | Â |
| 3. Frame sizes |  |  |
| Â | Â | Â |
| 4. Materials –Â Standard metric | Â | Â |
| Stainless Steel AISI 440C | Â | H |
| Â | Â | Â |
| 5. Cages | Â | Â |
| Steel ribbon type | Â | J |
| Steel crown type |  | W |
| Nylon crown type |  | TW |
| Steel rivet type |  | RJ |
| Full complement |  | V |
| Thrust FM type | Â | TP |
| Thrust F type | Â | TD |
| Â | Â | Â |
| 6. Closures  |  |  |
| Metallic shield (removable)Â | Â | ZZS |
| Metallic shield |  | ZZ |
| Rubbing seals | Â | 2RSÂ |
| Non rubbing seals |  | 2RU |
| Rubbing seals (Teflon) | Â | TTSÂ |
| Â | Â | Â |
| 7. Radial Play |  |  |
| Standard (10mm + bore) | Â | C2 Normal/C0(CN)/C3/C4/C5 |
| Miniature (Up to 10mm bore) | Â | MC1-MC6Â Note: MC3 is detault standard unless otherwise stated |
| Â | Â | Â |
| 8. Tolerances | Â | Â |
| ABEC 1 | Â | No symbol |
| ABEC 3 | Â | 3 |
| ABEC 5 | Â | 5 |
| ISO Class 0 | Â | P0 |
| ISO Class 6 | Â | P6 |
| ISO Class 5 | Â | P5 |
| AFMBA Class 3P | Â | A3P |
| AFMBA Class 5P | Â | A5P |
| Â | Â | Â |
| 9. Lubrication |  |  |
| Oil Aeroshell Fluid 12 | Â | AF2 |
| Grease Multemp SRL | Â | SRL |
