Single row cylindrical roller bearing, single direction for axial loads, 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 | 47 mm |
| B - Bearing/Inner ring width | 18 mm |
| E - Upper roller diameter | 41,5 mm |
| F - Under roller diameter | 26,5 mm |
| d1 - IR flange outer diameter | 29,7 mm |
| D1 - OR flange inner diameter | 38,8 mm |
| rs - Min fillet radius | 1 mm |
| r1s - Min fillet radius | 0,6 mm |
| Radial clearance class | C3 |
| Mass | 0,15 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 33,6 kN |
| C0 - Static load | 32,1 kN |
| Cu - Fatigue limit load | 3,9 kN |
| N ref - Reference thermal speed | 11000 tr/min |
| N lim - Mechanical Limit Speed | 19000 tr/min |
| N lim - Oil lubrication limit speed | 16000 tr/min |
| N lim - Grease lubrication limit speed | 13000 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) | 4,676 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 7,324 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 4,313 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 2,157 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,39 Hz |
| ABUTMENT | |
|---|---|
| da min - Min shoulder diameter IR | 25 mm |
| da max - Small face shoulder max diameter | 26 mm |
| db min - Min inner ring GO diameter | 29 mm |
| dc min - Min inner ring GO diameter | 32 mm |
| Da max - Max shoulder diameter OR | 42 mm |
| ra max - Max fillet radius | 1 mm |
| r1a - Max fillet radius | 0,6 mm |
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