E.1289.32.15.D.1 Bore 985 Mm, Slewing Rings, External Gear Type
The E.1289.32.15.D.1 Single-row four-point contact ball slewing bearings are widely used in rotational applications requiring the ability to withstand combined loads (axial force, radial force, and overturning moment) and demanding a compact structure and low self-weight, such as engineering machinery (truck cranes, excavators), wind power generation (yaw bearings), port machinery, photovoltaic tracking systems, robotics, and medical devices.
The E.1289.32.15.D.1 bearing is a Slewing rings with an inner diameter of 985 mm , an outer diameter of 1290 mm, a width of 114 mm. 50Mn or 42CrMo rings, GCr15 rolling mlement. Double sealed type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
E.1289.32.15.D.1 bearings ( 985 mm x 1290 mm x 114 mm) have the advantages of Compact structure, lightweight, small footprint, high cost-performance ratio, and are therefore widely used in the Robots, construction machinery, wind turbines, radar antennas, and various rotary worktables.
| Part Number | E.1289.32.15.D.1 |
| Gear type | External |
| Bearing Type | Slewing rings |
| Weight [kg] | 330 |
| Seal | Double sealed |
| Seal Material | NBR (Nitrile Butadiene Rubber) |
| Interchangeable | TGB E.1289.32.15.D.1 |
| Dimensions | |
| Da [mm] | 1290 |
| O [mm] | 1240 |
| U [mm] | 1116 |
| Di [mm] | 985 |
| Ha [mm] | 78 |
| Hb [mm] | 94 |
| H [mm] | 114 |
| Fixing holes | |
| La [mm] | 1198 |
| na NO. | 40 |
| da [mm] | 22 |
| Li [mm] | 1035 |
| ni NO. | 40 |
| di [mm] | 22 |
| Gear teeth | |
| P [mm] | 1250 |
| m | 10 |
| Number of teeth - z | 125 |
| Tooth Force | |
| Fz nor [N] | 68000 |
| Fz max [N] | 136000 |
The E.1289.32.15.D.1 Single-row four-point contact ball slewing bearings mainly consist of an inner ring, an outer ring, steel balls, spacers, and a sealing device. The raceways are peach-shaped or arc-shaped, and the steel balls form four-point contact with the inner and outer ring raceways. Gears can be integrated into the inner and outer rings.
Single-row four-point contact ball slewing bearings feature a low axial height and light weight due to their single-row structure. One bearing can simultaneously withstand axial loads, radial loads, and overturning moments. The four-point contact design provides high load-bearing capacity, good rigidity, and easy installation and maintenance.
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