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NTN 7911UADG/GNP42 Super Pricision Single Row Angular Contact Ball Bearing 55x80x13mm
Equivalent to: 7911UADG/GNP42U3G
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| d - Inside diameter | = | 55mm |
| D - Outside diameter | = | 80mm |
| B - Width | = | 13mm |
| d1 - Inner ring outside diameter | = | 63.7mm |
| d2 - Inner ring outside diameter | = | 61.8mm |
| D1 - Inner ring inside diameter | = | 71.4mm |
| D2 - Inner ring inside diameter | = | 75.1mm |
| a - Charge load application point | = | 22.3mm |
| Contact angle | = | 25 degrees |
| rs min - Minimum fillet radius | = | 1mm |
| r1s min - Minimum fillet radius | = | 0.6mm |
| Precision class | = | P42 |
| C - Dynamic load rating | = | 20.6 kN |
| C0 - Static load rating | = | 17.5 kN |
| f0 - Coefficient | = | 16.5 |
| Preload level | = | GN |
| Preload value | = | 186 N |
| Axial rigidity | = | 149.5 N/ym |
| Radial rigidity | = | 320 N/ym |
| N Lim - Oil limiting speed | = | 24300 tr/min |
| N Lim - Grease limiting speed | = | 15000 tr/min |
| da min - Inner ring minimum shoulder diameter | = | 60.5mm |
| Da max - Outer ring maximum shoulder diameter | = | 74.5mm |
| Db max - Outer ring maximum shoulder diameter | = | 75.5mm |
| r1a max - Maximum fillet radius | = | 0.6mm |
| ra max - Maximum shaft & housing fillet radius | = | 1mm |
| Tmin - Minimum operating temperature | = | -20 Deg C |
| Tmax - Maximum operating temperature | = | +120 Deg C |
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