
PGR P Series Shaft-Mounted Helical Gearbox
Developed for belt or chain driven elevators and conveyors, P series shaft-mounted gearboxes offer up to 42700 Nm torque and easy maintenance.
Specifications
- Power [kW]
- 0.5 – 270
- Torque [Nm]
- 400 – 42700
- Output speed [rpm]
- 5 – 20
- Shaft arrangement
- Parallel input and output
- Input
- Free input shaft
- Output options
- Hollow shaft, taper lock
- Mounting
- Shaft-mounted with torque arm
- Housing material
- Ductile iron (GGG 40-50) or grey cast iron (GG 20-25), two-piece
- Gear material
- Forged 21NiCrMo2 case-hardening steel
- Design standards
- ISO, DIN, NIEMANN
PGR P series shaft-mounted helical gearboxes are designed for elevator and conveyor systems driven by belts and pulleys or chains. They are particularly valued for easy servicing on drives located in confined or hard-to-reach positions.
With parallel input and output axes, the unit has a rigid two-piece housing and is driven through a free input shaft. Hollow shaft or taper-lock output options allow it to be slipped directly onto the driven shaft and held by a torque arm. A range of 0.5–270 kW, 400–42700 Nm and 5–20 rpm output speed makes it suitable for low-speed, high-torque drives.
Housings are cast in ductile iron (GGG 40-50) or grey cast iron (GG 20-25), and the gears are made of forged 21NiCrMo2 case-hardening steel.
Features
Shaft-mounted installation
The gearbox fits directly onto the driven shaft and is secured with a torque arm.
Rigid two-piece housing
The parallel-axis design with a sturdy split housing simplifies maintenance work.
Free input shaft
The drive is applied through a free input shaft via belt and pulley or chain.
Output options
Hollow shaft and taper-lock output versions are available.
Up to 42700 Nm torque
A torque range of 400–42700 Nm suits heavy elevator and conveyor drives.
ISO, DIN and NIEMANN calculations
System strength calculations are based on ISO, DIN and NIEMANN standards.
Applications
- Bucket elevators
- Belt and chain conveyors
- Bulk material handling lines
- Hard-to-access drive points
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