Deep groove ball bearing, radial contact, pressed steel cage, snap ring & groove on outer diameter, shields on both sides
The single row deep-groove ball bearing is the most popular bearing. It is available in a wide range of sizes with several possible options: sealing with shields or seals, presence of a retaining ring, varied clearances, several cage types, etc.
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Product information
| PRODUCT DEFINITION | |
|---|---|
| Brand | SNR |
| d - Internal diameter | 30 mm |
| D - External diameter | 55 mm |
| B - Bearing/Inner ring width | 13 mm |
| d1 - External diameter inner ring | 38,2 mm |
| D1 - Inner diameter outer ring | 49,5 mm |
| a min - Min position Groove | 1,88 mm |
| a max - Max position groove | 2,08 mm |
| Ca min - Mini segment position | 2,9 mm |
| Ca max - Max segment position | 3,2 mm |
| rs - Min fillet radius | 1 mm |
| rNs - Min fillet radius | 0,5 mm |
| D3 - Max bottom groove diameter | 52,6 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 | 60,7 mm |
| f - Stop ring thickness | 1,07 mm |
| Snap ring reference | R55 |
| Radial clearance class | CN |
| Mass | 0,116 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 13,9 kN |
| C0 - Static load | 8,3 kN |
| Cu - Fatigue limit load | 0,38 kN |
| f0 - Coefficient | 14.8 |
| N ref - Reference thermal speed | 13000 tr/min |
| N lim - Mechanical Limit Speed | 17000 tr/min |
| Tmin - Min operating temperature | -30 °C |
| Tmax - Max operating temperature | 120 °C |
| BEARING FREQUENCIES | |
|---|---|
| BPFO - Over rolling frequency on outer ring (60 rpm) | 4,58 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 6,42 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 5,81 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 2,905 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,416 Hz |
| ABUTMENT | |
|---|---|
| da min - Min shoulder diameter IR | 35 mm |
| da max - Max shoulder diameter IR | 38,2 mm |
| Da max - Max shoulder diameter OR | 50 mm |
| ra max - Max shaft & housing fillet radius | 1 mm |
| rNa max - Max fillet radius on segment side | 0,5 mm |
| Db min - Min stop ring position diameter | 61,5 mm |
