Drawing and Engineering Review
We review mating surfaces and interface dimensions and assess material, heat treatment and manufacturing feasibility.
Bearing Seals
Key Wear Parts for Coal Impactor
Bearing Seals (Bearing Seal)— Coal Impactor Wear part, position 11.
Location and Function
| Installation Position | At the bearing housing and rotor shaft extension |
| Function | Prevents coal dust and water from entering the bearing while retaining lubricant. |
- Material and design selection: choose NBR, HNBR, FKM, labyrinth or combined seals according to the temperature and lubricant.
- Confirm the seal design, shaft diameter, groove dimensions, allowable temperature, grease compatibility and dust exposure.
- Confirm material and manufacturing requirements against the specific model, drawings and acceptance agreement.
Information Required for RFQ
- Obtain the equipment nameplate, model, serial number, original model details, drawing revision, used-part dimensions and failure photographs. Record coal properties, maximum feed size, moisture, gangue or tramp metal, throughput, speed, clearances, vibration and current service life.
Materials and values are for preliminary engineering selection. Final chemical composition, heat treatment, hardness and dimensional tolerances must follow the OEM drawings and technical agreement.
Related Pages
Equipment, Materials and OEM Installations
Use these links for engineering pre-selection. Final fit must be checked against the full model, serial number, drawing revision, dimensions and actual duty.
Equipment
Related materials
Independent aftermarket information. OEM names and trademarks belong to their owners and do not imply authorization, affiliation or endorsement. Confirm the series, full model, serial number, drawings and duty before manufacture.