
PSPS Planetary Slewing Gearbox (sizes 20–36)
Planetary Slewing Gearbox BONENG PS

Planetary slewing gearbox PS for crane slewing mechanisms: 12 sizes 20–36 with 2, 3 or 4 stages; rated dynamic output torque 11–590 kN·m, ratios 14–947. Mounted vertically, pinion down, on flange A or B; the flanges are eccentric (A — 2.5 mm, B — 1.5 mm) with high-point marks to adjust the backlash between pinion and slewing ring. Integral or separate pinion (DIN 5480 spline, key) to suit the customer's slewing ring. Input from an electric motor (optionally with torque limiter and service brake) or hydraulic motor with built-in parking brake (15–300 bar). Efficiency 98 % per stage; torque ratings per FEM (M5, L2, T5).
Specifications
- Sizes
- 20–36 (12)
- Rated dynamic output torque
- 11–590 kN·m
- Ratios
- 2-stage 14–29 · 3-stage 46–142 · 4-stage 171–947
- Stages
- 2, 3 or 4
- Efficiency
- 98 % per stage
- Mounting
- vertical, flange A (eccentricity 2.5 mm) or B (1.5 mm)
- Output
- integral or separate pinion (DIN 5480 spline, parallel key)
- Input
- electric motor or hydraulic motor with parking brake 15–300 bar
Applications
- Tower crane slewing mechanisms
- Crawler and truck cranes
- Portal and gantry cranes
- Slewing platforms of offshore units and excavators
We will select the right size for your task and prepare a quotation under a direct SDS contract.







