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 min 62 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 |
| Shaft hardness | Min 62 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 |
| Art.nr | A | B | C |
|---|---|---|---|
| BGFR 20/30×20 | 30 | 20 | 20 |
| BGFR 20/30×25 | 30 | 20 | 25 |
| 20/30×30 | 30 | 20 | 30 |
| BGFR 20/30×35 | 30 | 20 | 35 |
| BGFR 20/30×40 | 30 | 20 | 40 |
| 20/30×45 | 30 | 20 | 45 |
| BGFR 20/30×50 | 30 | 20 | 50 |
| BGFR 20/30×55 | 30 | 20 | 55 |
| BGFR 20/30×60 | 30 | 20 | 60 |
| BGFR 20/30×65 | 30 | 20 | 65 |
| BGFR 25/35×30 | 35 | 25 | 30 |
| BGFR 25/35×35 | 35 | 25 | 35 |
| BGFR 25/35×40 | 35 | 25 | 40 |
| BGFR 25/35×45 | 35 | 25 | 45 |
| BGFR 25/35×50 | 35 | 25 | 50 |
| BGFR 25/35×55 | 35 | 25 | 55 |
| BGFR 25/35×60 | 35 | 25 | 60 |
| BGFR 25/35×65 | 35 | 25 | 65 |
| BGFR 25/35×70 | 35 | 25 | 70 |
| BGFR 25/35×75 | 35 | 25 | 75 |
| BGFR 25/35×80 | 35 | 25 | 80 |
| BGFR 25/35×85 | 35 | 25 | 85 |
| BGFR 25/35×90 | 35 | 25 | 90 |
| BGFR 25/35×95 | 35 | 25 | 95 |
| BGFR 25/35×100 | 35 | 25 | 100 |
| BGFR 30/40×30 | 40 | 30 | 30 |
| BGFR 30/40×35 | 40 | 30 | 35 |
| BGFR 30/40×40 | 40 | 30 | 40 |
| BGFR 30/40×45 | 40 | 30 | 45 |
| BGFR 30/40×50 | 40 | 30 | 50 |
| BGFR 30/40×55 | 40 | 30 | 55 |
| BGFR 30/40×60 | 40 | 30 | 60 |
| BGFR 30/40×65 | 40 | 30 | 65 |
| BGFR 30/40×70 | 40 | 30 | 70 |
| BGFR 30/40×75 | 40 | 30 | 75 |
| BGFR 30/40×80 | 40 | 30 | 80 |
| BGFR 30/40×85 | 40 | 30 | 85 |
| BGFR 30/40×90 | 40 | 30 | 90 |
| BGFR 30/40×95 | 40 | 30 | 95 |
| BGFR 30/40×100 | 40 | 30 | 100 |
| BGFR 35/45×30 | 45 | 35 | 30 |
| BGFR 35/45×35 | 45 | 35 | 35 |
| BGFR 35/45×40 | 45 | 35 | 40 |
| BGFR 35/45×45 | 45 | 35 | 45 |
| BGFR 35/45×50 | 45 | 35 | 50 |
| BGFR 35/45×55 | 45 | 35 | 55 |
| BGFR 35/45×60 | 45 | 35 | 60 |
| BGFR 35/45×65 | 45 | 35 | 65 |
| BGFR 35/45×70 | 45 | 35 | 70 |
| BGFR 35/45×75 | 45 | 35 | 75 |
| BGFR 35/45×80 | 45 | 35 | 80 |
| BGFR 35/45×85 | 45 | 35 | 85 |
| BGFR 35/45×90 | 45 | 35 | 90 |
| BGFR 35/45×95 | 45 | 35 | 95 |
| BGFR 35/45×100 | 45 | 35 | 100 |
| BGFR 40/50×30 | 50 | 40 | 30 |
| BGFR 40/50×35 | 50 | 40 | 35 |
| BGFR 40/50×40 | 50 | 40 | 40 |
| BGFR 40/50×45 | 50 | 40 | 45 |
| BGFR 40/50×50 | 50 | 40 | 50 |
| BGFR 40/50×55 | 50 | 40 | 55 |
| BGFR 40/50×60 | 50 | 40 | 60 |
| BGFR 40/50×65 | 50 | 40 | 65 |
| BGFR 40/50×70 | 50 | 40 | 70 |
| BGFR 40/50×75 | 50 | 40 | 75 |
| BGFR 40/50×80 | 50 | 40 | 80 |
| BGFR 40/50×85 | 50 | 40 | 85 |
| BGFR 40/50×90 | 50 | 40 | 90 |
| BGFR 40/50×95 | 50 | 40 | 95 |
| BGFR 40/50×100 | 50 | 40 | 100 |
| Art.nr | A | B | C |
|---|---|---|---|
| BGFR 45/55×30 | 55 | 45 | 30 |
| BGFR 45/55×35 | 55 | 45 | 35 |
| BGFR 45/55×40 | 55 | 45 | 40 |
| BGFR 45/55×45 | 55 | 45 | 45 |
| BGFR 45/55×50 | 55 | 45 | 50 |
| BGFR 45/55×55 | 55 | 45 | 55 |
| BGFR 45/55×60 | 55 | 45 | 60 |
| BGFR 45/55×65 | 55 | 45 | 65 |
| BGFR 45/55×70 | 55 | 45 | 70 |
| BGFR 45/55×75 | 55 | 45 | 75 |
| BGFR 45/55×80 | 55 | 45 | 80 |
| BGFR 45/55×85 | 55 | 45 | 85 |
| BGFR 45/55×90 | 55 | 45 | 90 |
| BGFR 45/55×95 | 55 | 45 | 95 |
| BGFR 45/55×100 | 55 | 45 | 100 |
| BGFR 50/60×30 | 60 | 50 | 30 |
| BGFR 50/60×35 | 60 | 50 | 35 |
| BGFR 50/60×40 | 60 | 50 | 40 |
| BGFR 50/60×45 | 60 | 50 | 45 |
| BGFR 50/60×50 | 60 | 50 | 50 |
| BGFR 50/60×55 | 60 | 50 | 55 |
| BGFR 50/60×60 | 60 | 50 | 60 |
| BGFR 50/60×65 | 60 | 50 | 65 |
| BGFR 50/60×70 | 60 | 50 | 70 |
| BGFR 50/60×75 | 60 | 50 | 75 |
| BGFR 50/60×80 | 60 | 50 | 80 |
| BGFR 50/60×85 | 60 | 50 | 85 |
| BGFR 50/60×90 | 60 | 50 | 90 |
| BGFR 50/60×95 | 60 | 50 | 95 |
| BGFR 50/60×100 | 60 | 50 | 100 |
| BGFR 55/65×35 | 65 | 55 | 35 |
| BGFR 55/65×40 | 65 | 55 | 40 |
| BGFR 55/65×45 | 65 | 55 | 45 |
| BGFR 55/65×50 | 65 | 55 | 50 |
| BGFR 55/65×55 | 65 | 55 | 55 |
| BGFR 55/65×60 | 65 | 55 | 60 |
| BGFR 55/65×65 | 65 | 55 | 65 |
| BGFR 55/65×70 | 65 | 55 | 70 |
| BGFR 55/65×75 | 65 | 55 | 75 |
| BGFR 55/65×80 | 65 | 55 | 80 |
| BGFR 55/65×85 | 65 | 55 | 85 |
| BGFR 55/65×90 | 65 | 55 | 90 |
| BGFR 60/70×35 | 70 | 60 | 35 |
| BGFR 60/70×40 | 70 | 60 | 40 |
| BGFR 60/70×45 | 70 | 60 | 45 |
| BGFR 60/70×50 | 70 | 60 | 50 |
| BGFR 60/70×55 | 70 | 60 | 55 |
| BGFR 60/70×60 | 70 | 60 | 60 |
| BGFR 60/70×65 | 70 | 60 | 65 |
| BGFR 60/70×70 | 70 | 60 | 70 |
| BGFR 60/70×80 | 70 | 60 | 80 |
| BGFR 60/70×90 | 70 | 60 | 90 |
| BGFR 60/70×100 | 70 | 60 | 100 |
| BGFR 65/75×35 | 75 | 65 | 35 |
| BGFR 65/75×40 | 75 | 65 | 40 |
| BGFR 65/75×45 | 75 | 65 | 45 |
| BGFR 65/75×50 | 75 | 65 | 50 |
| BGFR 65/75×55 | 75 | 65 | 55 |
| BGFR 65/75×60 | 75 | 65 | 60 |
| BGFR 65/75×65 | 75 | 65 | 65 |
| BGFR 65/75×70 | 75 | 65 | 70 |
| BGFR 65/75×80 | 75 | 65 | 80 |
| BGFR 65/75×90 | 75 | 65 | 90 |
| BGFR 65/75×100 | 75 | 65 | 100 |
| BGFR 70/80×35 | 80 | 70 | 35 |
| BGFR 70/80×40 | 80 | 70 | 40 |
| BGFR 70/80×45 | 80 | 70 | 45 |
| BGFR 70/80×50 | 80 | 70 | 50 |
| BGFR 70/80×55 | 80 | 70 | 55 |
| BGFR 70/80×60 | 80 | 70 | 60 |
| Art.nr | A | B | C |
|---|---|---|---|
| BGFR 70/80×65 | 80 | 70 | 65 |
| BGFR 70/80×70 | 80 | 70 | 70 |
| BGFR 70/80×80 | 80 | 70 | 80 |
| BGFR 70/80×90 | 80 | 70 | 90 |
| BGFR 70/80×100 | 80 | 70 | 100 |
| BGFR 75/85×35 | 85 | 75 | 35 |
| BGFR 75/85×40 | 85 | 75 | 40 |
| BGFR 75/85×45 | 85 | 75 | 45 |
| BGFR 75/85×50 | 85 | 75 | 50 |
| BGFR 75/85×55 | 85 | 75 | 55 |
| BGFR 75/85×60 | 85 | 75 | 60 |
| BGFR 75/85×65 | 85 | 75 | 65 |
| BGFR 75/85×70 | 85 | 75 | 70 |
| BGFR 75/85×80 | 85 | 75 | 80 |
| BGFR 75/85×90 | 85 | 75 | 90 |
| BGFR 75/85×100 | 85 | 75 | 100 |
| BGFR 80/90×35 | 90 | 80 | 35 |
| BGFR 80/90×40 | 90 | 80 | 40 |
| BGFR 80/90×45 | 90 | 80 | 45 |
| BGFR 80/90×50 | 90 | 80 | 50 |
| BGFR 80/90×55 | 90 | 80 | 55 |
| BGFR 80/90×60 | 90 | 80 | 60 |
| BGFR 80/90×65 | 90 | 80 | 65 |
| BGFR 80/90×70 | 90 | 80 | 70 |
| BGFR 80/90×80 | 90 | 80 | 80 |
| BGFR 80/90×90 | 90 | 80 | 90 |
| BGFR 80/90×100 | 90 | 80 | 100 |
| BGFR 85/95×35 | 95 | 85 | 35 |
| BGFR 85/95×40 | 95 | 85 | 40 |
| BGFR 85/95×45 | 95 | 85 | 45 |
| BGFR 85/95×50 | 95 | 85 | 50 |
| BGFR 85/95×55 | 95 | 85 | 55 |
| BGFR 85/95×60 | 95 | 85 | 60 |
| BGFR 85/95×65 | 95 | 85 | 65 |
| BGFR 85/95×70 | 95 | 85 | 70 |
| BGFR 85/95×80 | 95 | 85 | 80 |
| BGFR 85/95×90 | 95 | 85 | 90 |
| BGFR 85/95×100 | 95 | 85 | 100 |
| BGFR 90/100×35 | 100 | 90 | 35 |
| BGFR 90/100×40 | 100 | 90 | 40 |
| BGFR 90/100×45 | 100 | 90 | 45 |
| BGFR 90/100×50 | 100 | 90 | 50 |
| BGFR 90/100×55 | 100 | 90 | 55 |
| BGFR 90/100×60 | 100 | 90 | 60 |
| BGFR 90/100×65 | 100 | 90 | 65 |
| BGFR 90/100×70 | 100 | 90 | 70 |
| BGFR 90/100×80 | 100 | 90 | 80 |
| BGFR 90/100×90 | 100 | 90 | 90 |
| BGFR 90/100×100 | 100 | 90 | 100 |