Hardened clamp bushing
Hardened sliding bearings are primarily used when the dynamic load breaks and rapidly wear out sliding bearing made of steel or bronze. These bearings must be lubricated. The hardness of the material is 58-92 HRC and require a shaft hardness of at least 62 HRC to avoid wear on the shaft.
Bearings of type BGFR has a circular diagonal lubrication groove inside, and around the outside circumference in the middle sector. The outside lubrication groove has a through-going lubrication hole.
| Recommended tolerances: | ||
| Shaft | F7 | |
| Bearing seat | H8 | |
| Recommended shaft hardness: Hardened 55 HRC, depth min 0,3mm | ||
| Shaft surface finish: | Rz 0,8 – 1,2 sanded | |
| Max static load | <350 n/mm² |
| Max dynamic load | <200 n/mm² |
| Friction coefficient | 0,1 – 0,25 |
| Hardness | 54 HRC |
| Max sliding velocity | 4 m/min |
| Material bushing: | FE510 / S355J |
| Magnesium | 1,2 – 1,5 % |
| Silicon | 0,2 – 0,3 % |
| Carbon | 0,16 – 0,20 % |
| Hardening: | (+160°C) |
| Depth | 0,6 – 0,8 mm |
| Surface hardness | 58 – 62 HRC |
| Underlay mechanical durability | 850 – 950 N/mm² |
| Structural tolerance on the bushing | H8 |
| Product name | A | B | C |
| BGFR 30 20 20 | 30 | 20 | 20 |
| BGFR 30 20 25 | 30 | 20 | 25 |
| BGFR 30 20 30 | 30 | 20 | 30 |
| BGFR 30 20 35 | 30 | 20 | 35 |
| BGFR 30 20 40 | 30 | 20 | 40 |
| BGFR 30 20 45 | 30 | 20 | 45 |
| BGFR 30 20 50 | 30 | 20 | 50 |
| BGFR 30 20 55 | 30 | 20 | 55 |
| BGFR 30 20 60 | 30 | 20 | 60 |
| BGFR 30 20 65 | 30 | 20 | 65 |
| BGFR 35 25 30 | 35 | 25 | 30 |
| BGFR 35 25 35 | 35 | 25 | 35 |
| BGFR 35 25 40 | 35 | 25 | 40 |
| BGFR 35 25 45 | 35 | 25 | 45 |
| BGFR 35 25 50 | 35 | 25 | 50 |
| BGFR 35 25 55 | 35 | 25 | 55 |
| BGFR 35 25 60 | 35 | 25 | 60 |
| BGFR 35 25 65 | 35 | 25 | 65 |
| BGFR 35 25 70 | 35 | 25 | 70 |
| BGFR 35 25 75 | 35 | 25 | 75 |
| BGFR 35 25 80 | 35 | 25 | 80 |
| BGFR 35 25 85 | 35 | 25 | 85 |
| BGFR 35 25 90 | 35 | 25 | 90 |
| BGFR 35 25 95 | 35 | 25 | 95 |
| BGFR 35 25 100 | 35 | 25 | 100 |
| BGFR 40 30 30 | 40 | 30 | 30 |
| BGFR 40 30 35 | 40 | 30 | 35 |
| BGFR 40 30 40 | 40 | 30 | 40 |
| BGFR 40 30 45 | 40 | 30 | 45 |
| BGFR 40 30 50 | 40 | 30 | 50 |
| BGFR 40 30 55 | 40 | 30 | 55 |
| BGFR 40 30 60 | 40 | 30 | 60 |
| BGFR 40 30 65 | 40 | 30 | 65 |
| BGFR 40 30 70 | 40 | 30 | 70 |
| BGFR 40 30 75 | 40 | 30 | 75 |
| BGFR 40 30 80 | 40 | 30 | 80 |
| BGFR 40 30 85 | 40 | 30 | 85 |
| BGFR 40 30 90 | 40 | 30 | 90 |
| BGFR 40 30 95 | 40 | 30 | 95 |
| BGFR 40 30 100 | 40 | 30 | 100 |
| BGFR 45 35 30 | 45 | 35 | 30 |
| BGFR 45 35 35 | 45 | 35 | 35 |
| BGFR 45 35 40 | 45 | 35 | 40 |
| BGFR 45 35 45 | 45 | 35 | 45 |
| BGFR 45 35 50 | 45 | 35 | 50 |
| BGFR 45 35 55 | 45 | 35 | 55 |
| BGFR 45 35 60 | 45 | 35 | 60 |
| BGFR 45 35 65 | 45 | 35 | 65 |
| BGFR 45 35 70 | 45 | 35 | 70 |
| BGFR 45 35 75 | 45 | 35 | 75 |
| BGFR 45 35 80 | 45 | 35 | 80 |
| BGFR 45 35 85 | 45 | 35 | 85 |
| BGFR 45 35 90 | 45 | 35 | 90 |
| BGFR 45 35 95 | 45 | 35 | 95 |
| BGFR 45 35 100 | 45 | 35 | 100 |
| BGFR 50 40 30 | 50 | 40 | 30 |
| BGFR 50 40 35 | 50 | 40 | 35 |
| BGFR 50 40 40 | 50 | 40 | 40 |
| BGFR 50 40 45 | 50 | 40 | 45 |
| BGFR 50 40 50 | 50 | 40 | 50 |
| BGFR 50 40 55 | 50 | 40 | 55 |
| BGFR 50 40 60 | 50 | 40 | 60 |
| BGFR 50 40 65 | 50 | 40 | 65 |
| BGFR 50 40 70 | 50 | 40 | 70 |
| BGFR 50 40 75 | 50 | 40 | 75 |
| BGFR 50 40 80 | 50 | 40 | 80 |
| BGFR 50 40 85 | 50 | 40 | 85 |
| BGFR 50 40 90 | 50 | 40 | 90 |
| BGFR 50 40 95 | 50 | 40 | 95 |
| BGFR 50 40 100 | 50 | 40 | 100 |
| Product name | A | B | C |
| BGFR 55 45 30 | 55 | 45 | 30 |
| BGFR 55 45 35 | 55 | 45 | 35 |
| BGFR 55 45 40 | 55 | 45 | 40 |
| BGFR 55 45 45 | 55 | 45 | 45 |
| BGFR 55 45 50 | 55 | 45 | 50 |
| BGFR 55 45 55 | 55 | 45 | 55 |
| BGFR 55 45 60 | 55 | 45 | 60 |
| BGFR 55 45 65 | 55 | 45 | 65 |
| BGFR 55 45 70 | 55 | 45 | 70 |
| BGFR 55 45 75 | 55 | 45 | 75 |
| BGFR 55 45 80 | 55 | 45 | 80 |
| BGFR 55 45 85 | 55 | 45 | 85 |
| BGFR 55 45 90 | 55 | 45 | 90 |
| BGFR 55 45 95 | 55 | 45 | 95 |
| BGFR 55 45 100 | 55 | 45 | 100 |
| BGFR 60 50 30 | 60 | 50 | 30 |
| BGFR 60 50 35 | 60 | 50 | 35 |
| BGFR 60 50 40 | 60 | 50 | 40 |
| BGFR 60 50 45 | 60 | 50 | 45 |
| BGFR 60 50 50 | 60 | 50 | 50 |
| BGFR 60 50 55 | 60 | 50 | 55 |
| BGFR 60 50 60 | 60 | 50 | 60 |
| BGFR 60 50 65 | 60 | 50 | 65 |
| BGFR 60 50 70 | 60 | 50 | 70 |
| BGFR 60 50 75 | 60 | 50 | 75 |
| BGFR 60 50 80 | 60 | 50 | 80 |
| BGFR 60 50 85 | 60 | 50 | 85 |
| BGFR 60 50 90 | 60 | 50 | 90 |
| BGFR 60 50 95 | 60 | 50 | 95 |
| BGFR 60 50 100 | 60 | 50 | 100 |
| BGFR 65 55 35 | 65 | 55 | 35 |
| BGFR 65 55 40 | 65 | 55 | 40 |
| BGFR 65 55 45 | 65 | 55 | 45 |
| BGFR 65 55 50 | 65 | 55 | 50 |
| BGFR 65 55 55 | 65 | 55 | 55 |
| BGFR 65 55 60 | 65 | 55 | 60 |
| BGFR 65 55 65 | 65 | 55 | 65 |
| BGFR 65 55 70 | 65 | 55 | 70 |
| BGFR 65 55 75 | 65 | 55 | 75 |
| BGFR 65 55 80 | 65 | 55 | 80 |
| BGFR 65 55 85 | 65 | 55 | 85 |
| BGFR 65 55 90 | 65 | 55 | 90 |
| BGFR 70 60 35 | 70 | 60 | 35 |
| BGFR 70 60 40 | 70 | 60 | 40 |
| BGFR 70 60 45 | 70 | 60 | 45 |
| BGFR 70 60 50 | 70 | 60 | 50 |
| BGFR 70 60 55 | 70 | 60 | 55 |
| BGFR 70 60 60 | 70 | 60 | 60 |
| BGFR 70 60 65 | 70 | 60 | 65 |
| BGFR 70 60 70 | 70 | 60 | 70 |
| BGFR 70 60 80 | 70 | 60 | 80 |
| BGFR 70 60 90 | 70 | 60 | 90 |
| BGFR 70 60 100 | 70 | 60 | 100 |
| BGFR 75 65 35 | 75 | 65 | 35 |
| BGFR 75 65 40 | 75 | 65 | 40 |
| BGFR 75 65 45 | 75 | 65 | 45 |
| BGFR 75 65 50 | 75 | 65 | 50 |
| BGFR 75 65 55 | 75 | 65 | 55 |
| BGFR 75 65 60 | 75 | 65 | 60 |
| BGFR 75 65 65 | 75 | 65 | 65 |
| BGFR 75 65 70 | 75 | 65 | 70 |
| BGFR 75 65 80 | 75 | 65 | 80 |
| BGFR 75 65 90 | 75 | 65 | 90 |
| BGFR 75 65 100 | 75 | 65 | 100 |
| BGFR 80 70 35 | 80 | 70 | 35 |
| BGFR 80 70 40 | 80 | 70 | 40 |
| BGFR 80 70 45 | 80 | 70 | 45 |
| BGFR 80 70 50 | 80 | 70 | 50 |
| BGFR 80 70 55 | 80 | 70 | 55 |
| BGFR 80 70 60 | 80 | 70 | 60 |
| Product name | A | B | C |
| BGFR 80 70 65 | 80 | 70 | 65 |
| BGFR 80 70 70 | 80 | 70 | 70 |
| BGFR 80 70 80 | 80 | 70 | 80 |
| BGFR 80 70 90 | 80 | 70 | 90 |
| BGFR 80 70 100 | 80 | 70 | 100 |
| BGFR 85 75 35 | 85 | 75 | 35 |
| BGFR 85 75 40 | 85 | 75 | 40 |
| BGFR 85 75 45 | 85 | 75 | 45 |
| BGFR 85 75 50 | 85 | 75 | 50 |
| BGFR 85 75 55 | 85 | 75 | 55 |
| BGFR 85 75 60 | 85 | 75 | 60 |
| BGFR 85 75 65 | 85 | 75 | 65 |
| BGFR 85 75 70 | 85 | 75 | 70 |
| BGFR 85 75 80 | 85 | 75 | 80 |
| BGFR 85 75 90 | 85 | 75 | 90 |
| BGFR 85 75 100 | 85 | 75 | 100 |
| BGFR 90 80 35 | 90 | 80 | 35 |
| BGFR 90 80 40 | 90 | 80 | 40 |
| BGFR 90 80 45 | 90 | 80 | 45 |
| BGFR 90 80 50 | 90 | 80 | 50 |
| BGFR 90 80 55 | 90 | 80 | 55 |
| BGFR 90 80 60 | 90 | 80 | 60 |
| BGFR 90 80 65 | 90 | 80 | 65 |
| BGFR 90 80 70 | 90 | 80 | 70 |
| BGFR 90 80 80 | 90 | 80 | 80 |
| BGFR 90 80 90 | 90 | 80 | 90 |
| BGFR 90 80 100 | 90 | 80 | 100 |
| BGFR 95 85 35 | 95 | 85 | 35 |
| BGFR 95 85 40 | 95 | 85 | 40 |
| BGFR 95 85 45 | 95 | 85 | 45 |
| BGFR 95 85 50 | 95 | 85 | 50 |
| BGFR 95 85 55 | 95 | 85 | 55 |
| BGFR 95 85 60 | 95 | 85 | 60 |
| BGFR 95 85 65 | 95 | 85 | 65 |
| BGFR 95 85 70 | 95 | 85 | 70 |
| BGFR 95 85 80 | 95 | 85 | 80 |
| BGFR 95 85 90 | 95 | 85 | 90 |
| BGFR 95 85 100 | 95 | 85 | 100 |
| BGFR 100 90 35 | 100 | 90 | 35 |
| BGFR 100 90 40 | 100 | 90 | 40 |
| BGFR 100 90 45 | 100 | 90 | 45 |
| BGFR 100 90 50 | 100 | 90 | 50 |
| BGFR 100 90 55 | 100 | 90 | 55 |
| BGFR 100 90 60 | 100 | 90 | 60 |
| BGFR 100 90 65 | 100 | 90 | 65 |
| BGFR 100 90 70 | 100 | 90 | 70 |
| BGFR 100 90 80 | 100 | 90 | 80 |
| BGFR 100 90 90 | 100 | 90 | 90 |
| BGFR 100 90 100 | 100 | 90 | 100 |