Technical Advice
Equipment and part identification, drawing review, material selection and manufacturing feasibility assessment.
Keeps dust and water out of the bearing while retaining lubricant and allowing contaminated grease to purge.
Rotor Bearing Seal (Rotor Bearing Seal)— Impact Crusher Wear part, position 08.
| Installation Position | At the contamination boundary between the bearing housing and projecting rotor shaft, position 08 in common layout B. |
| Main Function | Keeps dust and water out of the bearing while retaining lubricant and allowing contaminated grease to purge. |
| Replacement Frequency | Medium replacement frequency; replace for abnormal grease leakage, dust ingress, hardened lips, labyrinth rubbing or a groove worn into the shaft journal. |
Material options: Rotor bearing seal options: nitrile rubber (NBR), fluoroelastomer (FKM) or labyrinth seals.
Material options are for preliminary engineering selection; suitability and service life depend on the application.
| Item | Details |
|---|---|
| Material Options | Labyrinth/Taconite arrangement with NBR, HNBR, FKM, V-ring or OEM-specified composite seals |
| Typical Properties and Acceptance Criteria | Heavy dust duty calls for multi-stage protection and controlled grease purging. Specify elastomer hardness, tensile and tear properties, and compression set for temperature, grease and fluid compatibility. Metal labyrinth parts require controlled coaxiality, runout, seal clearances and surface finish. Bearing clearance and journal grooves can greatly shorten seal life. |
| Principal Failure Mechanism | Contact fatigue, lubricant contamination, overheating, seizure and seal failure; wear, ageing, extrusion, fluid incompatibility and leakage |
Use these links for preliminary selection. Confirm the complete model, serial or drawing number, drawing revision, dimensions and actual operating conditions to establish fit.
Independent aftermarket information. OEM names and trademarks belong to their respective owners and do not imply authorization, affiliation or endorsement. Confirm the series, complete model, serial or drawing number, drawings and operating conditions before manufacture.
Provide the machine model, operating conditions and target service life so our engineers can recommend materials and prepare a quotation.
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ANRANST provides customers worldwide with coordinated consulting, supplier sourcing, quality control and finished-part delivery for custom parts, wear parts and industrial spares from China, with scope to support other custom industrial parts.
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