42,875 mm x 83,058 mm x 25,4 mm NTN 4T-25577/25521 Tapered roller bearings
| Brand Name |
NTN |
| Model Number |
4T-25577/25521 |
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
Product Features
NTN 4T-25577/25521 bearing Size Chart (mm/inches) |
|---|
| Bearing number | 7014 CD/HCP4A |
| Size (mm) | 70x110x20 |
| Bore Diameter (mm) | 70 |
| Outer Diameter (mm) | 110 |
| Width (mm) | 20 |
| d | 70 mm |
| D | 110 mm |
| B | 20 mm |
| d1 | 82.3 mm |
| d2 | 82.3 mm |
| D1 | 97.7 mm |
| r1,2 - min. | 1.1 mm |
| r3,4 - min. | 0.6 mm |
| a | 22.1 mm |
| da - min. | 76 mm |
| db - min. | 76 mm |
| Da - max. | 104 mm |
| Db - max. | 106 mm |
| ra - max. | 1 mm |
| rb - max. | 0.6 mm |
| dn | 85 mm |
| Basic dynamic load rating - C | 52 kN |
| Basic static load rating - C0 | 45.5 kN |
| Fatigue load limit - Pu | 1.9 kN |
| Limiting speed for grease lubrication | 15000 r/min |
| Limiting speed for oil lubrication | 22000 mm/min |
| Ball - Dw | 12.7 mm |
| Ball - z | 19 |
| Gref | 8.1 cm3 |
| Calculation factor - f0 | 15.5 |
| Preload class A - GA | 200 N |
| Preload class B - GB | 400 N |
| Preload class C - GC | 800 N |
| Preload class D - GD | 1600 N |
| Calculation factor - f | 1.12 |
| Calculation factor - f | 1 |
| Calculation factor - f2A | 1 |
| Calculation factor - f2B | 1.02 |
| Calculation factor - f2C | 1.05 |
| Calculation factor - f2D | 1.09 |
| Calculation factor - fHC | 1.02 |
| Preload class A | 90 N/micron |
| Preload class B | 123 N/micron |
| Preload class C | 173 N/micron |
| Preload class D | 252 N/micron |
| d1 | 82.3 mm |
| d2 | 82.3 mm |
| D1 | 97.7 mm |
| r1,2 min. | 1.1 mm |
| r3,4 min. | 0.6 mm |
| da min. | 76 mm |
| db min. | 76 mm |
| Da max. | 104 mm |
| Db max. | 106 mm |
| ra max. | 1 mm |
| rb max. | 0.6 mm |
| dn | 85 mm |
| Basic dynamic load rating C | 52 kN |
| Basic static load rating C0 | 45.5 kN |
| Fatigue load limit Pu | 1.93 kN |
| Attainable speed for grease lubrication | 15000 r/min |
| Attainable speed for oil-air lubrication | 22000 r/min |
| Ball diameter Dw | 12.7 mm |
| Number of balls z | 19 |
| Reference grease quantity Gref | 8.1 cm³ |
| Preload class A GA | 200 N |
| Static axial stiffness, preload class A | 90 N/µm |
| Preload class B GB | 400 N |
| Static axial stiffness, preload class B | 123 N/µm |
| Preload class C GC | 800 N |
| Static axial stiffness, preload class C | 173 N/µm |
| Preload class D GD | 1600 N |
| Static axial stiffness, preload class D | 252 N/µm |
| Calculation factor f | 1.12 |
| Calculation factor f1 | 1 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.02 |
| Calculation factor f2C | 1.05 |
| Calculation factor f2D | 1.09 |
| Calculation factor fHC | 1.02 |
| Calculation factor f0 | 15.5 |
| Mass bearing | 0.5 kg |