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 | NTN |
| d - Internal diameter | 20 mm |
| D - External diameter | 52 mm |
| B - Bearing/Inner ring width | 21 mm |
| E - Upper roller diameter | 45,5 mm |
| F - Under roller diameter | 27,5 mm |
| d1 - IR flange outer diameter | 31,1 mm |
| rNs - Min fillet radius | 0,6 mm |
| rs - Min fillet radius | 1,1 mm |
| Radial clearance class | C3 |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 49,5 kN |
| C0 - Static load | 39 kN |
| Cu - Fatigue limit load | 4,75 kN |
| N lim - Oil lubrication limit speed | 16800 tr/min |
| N lim - Grease lubrication limit speed | 12000 tr/min |
| Tmin - Min operating temperature | -20 °C |
| Tmax - Max operating temperature | 120 °C |
| ABUTMENT | |
|---|---|
| da min - Min shoulder diameter IR | 24 mm |
| dc min - Min inner ring GO diameter | 30 mm |
| Da max - Max shoulder diameter OR | 45,5 mm |
| Db min - Small face shoulder min diameter | 46,5 mm |
| ra max - Max fillet radius | 1 mm |
| r1a - Max fillet radius | 0,6 mm |
