Technical Advice
Equipment and part identification, drawing review, material selection and manufacturing feasibility assessment.
Supports the heavily loaded rotor and accommodates misalignment and thermal expansion within the design limits.
Rotor Bearing (Rotor Bearing)— Hammer Crusher Wear part, position 08.
| Installation Position | Inside the bearing housings at both ends of the rotor mainshaft; position 08 in the layout. |
| Main Function | Supports the heavily loaded rotor and accommodates misalignment and thermal expansion within the design limits. |
| Replacement Frequency | Low to medium replacement frequency; service or replace for abnormal vibration, temperature, noise, pitting, clearance or ferrous debris in lubricant analysis. |
| Item | Details |
|---|---|
| Material Options | Clean 100Cr6/SAE 52100 bearing steel; cage, rolling elements and surface treatment to the bearing manufacturer's design |
| Typical Properties and Acceptance Criteria | Hammer crushers commonly use heavy-duty spherical roller bearings with raceway hardness around 58–64 HRC. Establish basic rating life, internal clearance, cage, tapered or cylindrical bore, fits, grease and permitted temperature for the load, speed and temperature rise. TerraSource TKK provides an example using self-aligning spherical roller bearings; the exact bearing designation cannot be inferred from appearance. |
| Principal Failure Mechanism | Impact, cutting and abrasive wear; contact fatigue, lubricant contamination, overheating, seizure and seal failure |
Use these links for preliminary selection. Confirm the complete model, serial or drawing number, drawing revision, dimensions and actual operating conditions to establish fit.
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