NTN
Needle roller bearings KR40
Bearing NTN KR40, Ø18×40×21.5 mm. Request a quote — worldwide shipping.
Type Needle roller bearings
Dimensions
Ø 18 × 40 × 21,5 mm
d18Bore Ø (mm)
×
D40Outer Ø (mm)
×
B21,5Width (mm)
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In stock
Technical specifications
| Brand | NTN |
| D - External diameter | 40 mm |
| d1 - Stud diameter | 18 mm |
| C - Width of bearing, drawn cup or outer ring | 20 mm |
| F - Under roller diameter | 22 mm |
| B - Bearing/Inner ring width | 21,5 mm |
| B1 - Total stud length | 58 mm |
| B2 - Stud rod length | 36,5 mm |
| G - Stud thread designation | M18X1.5 |
| G1 - Thread length of the stud | 19 mm |
| B3 - Distance between washer face and radial lub hole | 8 mm |
| C1 - Distance between roller face and washer face | 0,8 mm |
| n - Axial lubrication hole diameter | 6 mm |
| a - Radial lubrication hole diameter | 3 mm |
| e - Inlet diameter of roller or washer | 32 mm |
| R - Track roller radius | 500 mm |
| Maximum tightening torque | 76 N-m |
| Bearing with/without cage | Avec |
| Radial clearance class | CN |
| Precision class | P0 |
| Mass | 0,248 kg |
| Cr - Dynamic load rating | 14000000 mN |
| C0r - Static load rating | 22800000 mN |
| Track load capacity spherical outer ring | 3850000 mN |
| N lim - Grease lubrication limit speed | 42000 °/s |
| N lim - Oil lubrication limit speed | 54000 °/s |
| Tmin - Min operating temperature | 253,15 °K |
| Tmax - Max operating temperature | 393,15 °K |
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NTN KR40