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24T Smooth Bearing Idler — 15mm Belt, 12mm Inner Bore
24T Smooth Bearing Idler — 15mm Belt, 12mm Inner Bore
A smooth bearing idler for guiding the flat back of a nominal 15mm belt in a compatible 3M belt system. The roller turns on its bearing around a mounting point with a 12mm bearing inner bore, supporting belt routing in CNC and automation assemblies.
24T-15W-12B quick reference
24T-15W-12B smooth bearing idler
Product photo for this 12mm bearing-bore variant. The smooth roller contacts the flat back of the belt.
Why use a smooth bearing idler?
- Guides the flat back of the belt where the belt manufacturer permits reverse bending.
- Helps route the belt around the assembly and adjust wrap around a drive pulley.
- The bearing lets the roller turn around a fixed mounting point.
- The 12mm bearing inner bore helps you select the matching mounting shaft or pin.
Technical specifications
| Specification | Value | Practical notes |
|---|---|---|
| Model | 24T-15W-12B | Use the full model code when selecting a replacement. |
| Model designation | 24T | Identifies this size within the smooth-idler range. |
| Belt system | 3M | For a compatible belt-back idler arrangement. |
| Nominal belt width | 15mm | Select the belt width and align its running path. |
| Bearing inner bore | Ø12mm | Match the mounting shaft or pin to the bearing inner bore. |
| Roller | Smooth, bearing-supported | Contacts the flat back of the belt and must rotate freely. |
Model naming: 24T is a model designation, not a tooth count; this smooth idler has no teeth.
Australia-wide supply
Contact NCMASTER for supply and delivery options across Victoria, New South Wales, Queensland, South Australia, Western Australia, Tasmania, the Australian Capital Territory and the Northern Territory.
For help selecting this idler, provide the model code SmoothIdler-24T-15W-12B, your belt width and mounting arrangement.
