Single row cylindrical roller bearing, single direction for axial loads, separable, brass 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 | 180 mm |
| D - External diameter | 320 mm |
| B - Bearing/Inner ring width | 52 mm |
| E - Upper roller diameter | 289 mm |
| F - Under roller diameter | 217 mm |
| d1 - IR flange outer diameter | 231,4 mm |
| rs - Min fillet radius | 4 mm |
| r1s - Min fillet radius | 4 mm |
| Radial clearance class | C4 |
| Mass | 17,9 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 625 kN |
| C0 - Static load | 850 kN |
| Cu - Fatigue limit load | 78,7 kN |
| N lim - Oil lubrication limit speed | 2200 tr/min |
| N lim - Grease lubrication limit speed | 1800 tr/min |
| Tmin - Min operating temperature | -40 °C |
| Tmax - Max operating temperature | 120 °C |
| ABUTMENT | |
|---|---|
| da min - Min shoulder diameter IR | 196 mm |
| da max - Small face shoulder max diameter | 214 mm |
| dc min - Min inner ring GO diameter | 233 mm |
| Da max - Max shoulder diameter OR | 304 mm |
| ra max - Max fillet radius | 3 mm |
