The toothed outer ring options is available in all the standard PRT slewing ring sizes, from 30mm to 300mm diameter. For each size, four tooth patterns are available: belt profiles AT10, T10 and HTD8M and spur gear to DIN 3967. The outer ring of the standard PRT slewing ring is replaced by this toothed ring, allowing easy fitting and maintenance-free operation.
Igus is also promoting its low-cost slewing ring, which is made of only four parts. This is currently offered in 80mm diameter and is designed for applications where cost reduction is the primary factor – typical examples include the furniture industry or display advertising systems.