NTN
Needle roller bearings NK21/20R
Bearing NTN NK21/20R, Ø21×29×20 mm. Request a quote — worldwide shipping.
Type Needle roller bearings
Dimensions
Ø 21 × 29 × 20 mm
d21Bore Ø (mm)
×
D29Outer Ø (mm)
×
B20Width (mm)
Request quote
In stock
Technical specifications
| Brand | NTN |
| Fw - Under rollers diameter | 21 mm |
| D - External diameter | 29 mm |
| C - Width of bearing, drawn cup or outer ring | 20 mm |
| rs - Min fillet radius | 0,3 mm |
| Lubrication hole on outer ring | Oui/Yes |
| k - Hole diameter | 2,5 mm |
| Radial clearance class | CN |
| Precision class | P0 |
| Mass | 0,035 kg |
| Cr - Dynamic load rating | 17400000 mN |
| C0r - Static load rating | 25400000 mN |
| N lim - Grease lubrication limit speed | 78000 °/s |
| N lim - Oil lubrication limit speed | 114000 °/s |
| Tmin - Min operating temperature | 253,15 °K |
| Tmax - Max operating temperature | 393,15 °K |
| Da max - Max shoulder diameter OR | 27 mm |
| ras max - Max shaft & housing fillet radius | 0,3 mm |
Related products
NTN NK21/20R