Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | VSA250855 | |
| Bore diameter | d | 755 mm |
| Outside diameter | D | 997 mm |
| Width | B | 80 mm |
| Basic dynamic load rating | C | 320 kN |
| Basic static load rating | C0 | 1400 kN |
| Mass | ≈m | 145 kg |
| Minimum operating temperature | Tmin | -25 °C |
| Maximum operating temperature | Tmax | 80 °C |
Manufacturer Identity3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 398312 | |
| Brand | INA | |
| Base Type | VSA250855 |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Slewing ring, 4 point contact bearing, external gear teeth | |
| Short Description | Slewing ring, 4 point contact bearing, external gear teeth |
Technical Data29 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D1) | 755 mm | |
| Outside Diameter (Da) | 997 mm | |
| Total Height (H) | 80 mm | |
| Basic Static Load Rating, Axial (C0A) | 3,050,000 N | |
| Number Of Teeth (Z) | 109 | |
| Height Of Individual Ring (H) | 54 mm | |
| Operating Temperature Min. (Tmin) | -25 °C | |
| Pitch Circle Diameter Gearing (D0) | 981 mm | |
| Modul Of Gearing (M) | 9 mm | |
| Basic Dynamic Load Rating, Axial (Ca) | 355,000 N | |
| Operating Temperature Max. (Tmax) | 80 °C | |
| Pitchcircle Diameter Fixing Holes Inner Ring (Li) | 795 mm | |
| Normal Axial Clearance Min. (Normal Axial) | 0.05 mm | |
| Max. Tooth Force Root Fatigue Strenght (At A Shock Factor Of 1,2) (Fz Norm) | 55,100 N | |
| Inner Diameter Outer Ring (Di) | 853 mm | |
| Normal Axial Clearance Max. (Normal Axial) | 0.24 mm | |
| Number Of Fixing Holes In Inner Ring (Ni) | 28 | |
| Fixing Bore (Db) | 22 mm | |
| Outside Diameter Inner Ring (Da) | 857 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 320,000 N | |
| Thread Depth Oil Connector (Tg) | 40 mm | |
| Max. Tooth Force Against Tooth Fracture (At A Shock Factor Of 1,35) (Fz Max) | 80,200 N | |
| Basic Static Load Rating, Radial (C0R) | 1,400,000 N | |
| Pitch Circle Diameter Fixing Holes (La) | 916 mm | |
| Max. Radial Load Screws (Frictional Contact) (Fr Zul) | 338,800 N | |
| Width Outer Ring (Ha) | 71 mm | |
| Normal Radial Clearance Min. (Normal Radia) | 0.03 mm | |
| Normal Radial Clearance Max. (Normal Radia) | 0.13 mm | |
| Number Of Fixing Holes In Outer Ring (Na) | 28 |