PGR P Series Shaft-Mounted Helical Gearbox
PGR GearboxesHelical GearboxesP

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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