Single row cylindrical roller bearing, floating, separable, polyamide cage
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In the cylindrical roller bearing range, the single row roller bearing withstands high radial loads. The standard ISO ranges (NU, N, NJ, NF, NUP, NH, RNU, HJ) are available with different types of cage, bore diameters, shoulder rings.
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Product information
| PRODUCT DEFINITION | |
|---|---|
| Brand | SNR |
| d - Internal diameter | 20 mm |
| D - External diameter | 52 mm |
| B - Bearing/Inner ring width | 15 mm |
| E - Upper roller diameter | 45,5 mm |
| F - Under roller diameter | 27,5 mm |
| d1 - IR flange outer diameter | 31,3 mm |
| rs - Min fillet radius | 1,1 mm |
| r1s - Min fillet radius | 0,6 mm |
| Radial clearance class | CN |
| Mass | 0,153 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 30,7 kN |
| C0 - Static load | 26 kN |
| Cu - Fatigue limit load | 3,15 kN |
| N ref - Reference thermal speed | 12000 tr/min |
| N lim - Mechanical Limit Speed | 17000 tr/min |
| N lim - Oil lubrication limit speed | 14000 tr/min |
| N lim - Grease lubrication 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) | 3,767 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 6,233 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 3,809 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 1,905 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,377 Hz |
| ABUTMENT | |
|---|---|
| da min - Min shoulder diameter IR | 26,5 mm |
| Da max - Max shoulder diameter OR | 48 mm |
| Db min - Small face shoulder min diameter | 46 mm |
| Dc max - Max outer ring GO diameter | 43 mm |
| ra max - Max fillet radius | 1 mm |
| r1a - Max fillet radius | 0,6 mm |
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