Double row angular contact ball bearing, polyamide cage, snap ring and groove on outer diameter, shield on both sides
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Product information
| PRODUCT DEFINITION | |
|---|---|
| Brand | SNR |
| d - Internal diameter | 20 mm |
| D - External diameter | 47 mm |
| B - Bearing/Inner ring width | 20,6 mm |
| d1 - External diameter inner ring | 28,8 mm |
| D1 - Inner diameter outer ring | 41,9 mm |
| a - Charge load application point | 24,2 mm |
| α - Contact angle | 25 ° |
| a min - Min position Groove | 2,31 mm |
| a max - Max position groove | 2,46 mm |
| rs - Min fillet radius | 1 mm |
| rNs - Min fillet radius | 0,6 mm |
| D3 - Max bottom groove diameter | 44,6 mm |
| b min - Min groove width | 1,35 mm |
| b max - Max groove width | 1,65 mm |
| r0 max - Max bottom groove radius | 0,4 mm |
| D4 max - Max outer diameter of assembled stop ring | 52,7 mm |
| f - Stop ring thickness | 1,07 mm |
| Snap ring reference | R 47 |
| Radial clearance class | CN |
| Precision class | P0 |
| Mass | 0,139 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 19,1 kN |
| C0 - Static load | 12,5 kN |
| Cu - Fatigue limit load | 0,81 kN |
| f0 - Coefficient | 13.7 |
| N ref - Reference thermal speed | 12000 tr/min |
| N lim - Mechanical Limit Speed | 12000 tr/min |
| Tmin - Min operating temperature | -20 °C |
| Tmax - Max operating temperature | 120 °C |
| BEARING FREQUENCIES | |
|---|---|
| BPFO - Over rolling frequency on outer ring (60 rpm) | 3,154 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 4,846 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 4,091 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 2,046 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,394 Hz |
| ABUTMENT | |
|---|---|
| da min - Min shoulder diameter IR | 25 mm |
| da max - Max shoulder diameter IR | 28,8 mm |
| Da max - Max shoulder diameter OR | 42 mm |
| Ca min - Mini segment position | 2,92 mm |
| Ca max - Max segment position | 3,18 mm |
| ra max - Max shaft & housing fillet radius | 1 mm |
| rNa max - Max fillet radius on segment side | 0,6 mm |
| Db min - Min stop ring position diameter | 53,4 mm |
