SKF 687 services Roller Bearings
| Brand Name | SKF 687 services Roller Bearings |
| Model Number | 687 |
| Min.Order Quantity | 1 pcs |
| Price | Negotiable |
Product Details
| Bearing number | 4T-2687/2631 |
| Size (mm) | 25.4x66.421x23.812 |
| Bore Diameter (mm) | 25,4 |
| Outer Diameter (mm) | 66,421 |
| Width (mm) | 23,812 |
| d | 25,4 mm |
| D | 66,421 mm |
| T | 23,812 mm |
| B | 25,433 mm |
| C | 19,05 mm |
| ra1 max. | 1,3 mm |
| a | 9,3 mm |
| Da | 58 mm |
| db | 31,5 mm |
| ra max. | 1,3 mm |
| da | 33,5 mm |
| Db | 60 mm |
| Weight | 0,442 Kg |
| Basic dynamic load rating (C) | 64,5 kN |
| Basic static load rating (C0) | 72,5 kN |
| (Grease) Lubrication Speed | 6 200 r/min |
| (Oil) Lubrication Speed | 8 200 r/min |
| Calculation factor (e) | 0,25 |
| Calculation factor (Y0) | 1,3 |
| d1 | 45 mm |
| e | 0.25 |
| Y2 | 2.36 |
| Y0 | 1.3 |
| Mass | 0.44 kg |
| Dynamic load, C | 64.5 kN |
| Rating life coefficient, A2 | 1.4 |
| Static load, C0 | 72.5 kN |
| Fatigue limit load, Cu | 8.8 kN |
| Nlim (oil) | 8,200 rpm |
| Nlim (grease) | 6,200 rpm |
| Min operating temperature, Tmin | -40 °C |
| Max operating temperature, Tmax | 120 °C |
| Characteristic cage frequency, FTF | 0.41 Hz |
| Characteristic rolling element frequency, BSF | 5.1 Hz |
| Characteristic outer ring frequency, BPF0 | 5.7 Hz |
| Characteristic inner ring frequency, BPFI | 8.31 Hz |
| ra max | 1.3 mm |
| r1a max | 1.3 mm |
Company Profile
| Worktime | Seg - Sex (9.00 - 18.00) Sáb (9: 00-12: 00) |
| Phone | (65) 8257 8518 |
| Fax | (65) 6258 7399 |