Small chain belt back bearing
The small chain-belt rear bearing is the supporting rotating part at the tail of a chain grate. We supply replacement bearings matched to the grate model, and they can be ordered together with the front bearing, guide wheels and other parts.
The supporting position at the rear
The rear end of the chain return run is carried by bearing-supported rotating parts, and the small chain-belt rear bearing sits at that position. Its mounting dimensions and fits have to match the existing parts, so we check them against the drawing, model or old part when it is replaced, and we can help confirm how the parts match.
Material and standard
Replacement parts at this position are selected by temperature range.
| Material | Temperature range | Notes |
|---|---|---|
| Ductile iron | Rotating and supporting parts | For rollers and chain wheels |
| Cr26Ni12 | Medium temperature | Common heat-resistant alloy |
| Cr25Ni20 (310S) | 1100°C | For high-temperature zones |
All parts are supplied to the NB/T 47050-2016 technical standard, and the material can be customised to customer requirements.
Matching parts and quotation
Please send the grate model, a drawing or the dimensions of the old part, and the quantity. We check them, and the partner factory arranges shipment; we can help with selection and with matching the parts, so a single item does not arrive and fail to fit the chain already in service.