KOYO
Cylindrical roller bearings NJ228R
Bearing KOYO NJ228R, Ø140×250×42 mm. Request a quote — worldwide shipping.
Type Cylindrical roller bearings
Dimensions
Ø 140 × 250 × 42 mm
d140Bore Ø (mm)
×
D250Outer Ø (mm)
×
B42Width (mm)
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Technical specifications
| d | 140 mm |
| D | 250 mm |
| B | 42 mm |
| r(min.) | 3 mm |
| r1(min.) | 3 mm |
| Fw | 169 mm |
| Ew | - mm |
| Basic load ratings : Cr | 491 kN |
| Basic load ratings : C0r | 514 kN |
| Fatigue load limit : Cu | 67.5 kN |
| Limiting speeds(Grease lub.) | 2400 min-1 |
| Limiting speeds(Oil lub.) | 2900 min-1 |
| sd1 | - mm |
| B1 | - mm |
| B2 | - mm |
| da(min.) | - mm |
| db(min.) | 153 mm |
| db(max.) | 166 mm |
| dc(min.) | - mm |
| dd(min.) | - mm |
| Da(max.) | 237 mm |
| Db(max.) | - mm |
| Db(min.) | - mm |
| ra(max.) | 2.5 mm |
| rb(max.) | 2.5 mm |
| (Refer.)Mass | 8.73 kg |
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KOYO NJ228R