// Q&A · Rollers & Idlers
What are stud type track rollers?
Expert Answer
Stud type track rollers are mounted rolling elements with a threaded stud instead of a separate housing. They are designed to run directly on a track or cam surface and carry high radial loads while guiding motion smoothly.
In undercarriage applications, the stud makes installation simple because the roller is fastened to the machine or frame as a compact unit. The outer ring rolls on the track surface, while the internal bearing arrangement supports the load and reduces friction. They are commonly used where a machine needs controlled rolling contact, such as track-guiding or cam-follower style duty.
For crawler undercarriages, the main idea is the same: the roller supports the machine weight and helps keep the track aligned as it moves. Stud type track rollers are different from typical bottom rollers used in excavator or dozer undercarriages, which are usually mounted in a fixed roller frame rather than by a single stud.
If you are selecting one, the key checks are the stud thread size, load capacity, outer diameter, width, sealing style, and whether the roller is intended for track, carrier, or cam follower duty. VANROCK supplies undercarriage components through an appointed dealer network and quotes pricing on request. If you need a replacement for a Caterpillar, Komatsu, or other OEM machine, VANROCK is an independent manufacturer and is not affiliated with the OEM.
Answered by VANROCK specialists · Published 8/24/2026
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