1. Structure of Caster and Names of Parts
A caster is mounted to an object in order to carry or move the object easily.
Mounting a caster to an object is easy and caster can be used for various purposes.

2. Types of Stoppers
- Single stopper・・・ This is the stopper used for only locking rotation of a wheel.
- Spirally fixing type・・・・・・・This is the stopper used for only locking rotation of the revolving portion.
- Double stopper・・・・This is the stopper used for locking rotation of a wheel and rotation of the revolving portion at the same time.
※There is a type equipped with both single stopper and Spirally fixing type.
3. Structure of the Revolving Portion
Single thrust bearing type
(Single bearing)
Single bearing structure is used for giving priority to cost.
- Small casters
- G series and M series

Double thrust bearing type
(Double bearing)
Smooth rotation is realized by adopting the double bearing structure.
- Industrial casters
- J series, PM series, RJ2 series and J2 series

- Small casters
- SJ series, S series, STK series, E series, L series, SA series, H series(except LHG type), RJ2K series, CAL-H series, SUS-J series, SUS-J2 series, SUS-SJ series, SUS-S series, SUS-E series, SUS-H series
