DOBIKAR LTD is a Bulgarian speed-reducer manufacturer supplying gearboxes for automated assembly lines exported across Eastern Europe.
Original ordinary Z1V1 bearings generated loud howling noise during continuous high-speed operation, breaching factory environmental noise limits, and vibration varied between individual finished reducers—driving high customer complaint rates.
Customize mid-range Z2V2 silent bearings—positioned between standard Z1V1 and premium Z3V3—with strict vibration control and full compatibility with DOBIKAR's existing shaft and housing tolerance standards for mass reducer production.
Compared with regular Z1V1, Z2V2 demands 3–5dB lower noise and tight vibration amplitude—costly mirror superfinishing needs micron-level raceway waviness control.
Full ZV2 vibration screening forces strict yield control to keep uniform noise across large batches.
Improper clearance matching lets reducer heat rapidly amplify vibration and cause sudden noise surges.
Gear iron filings and continuous gear-oil erosion destroy sealing structures, making long-term silent life hard to guarantee.
Superfinished raceways and balls to ≤0.03μm waviness eliminate whistling and humming; 100% vibration inspection screens out-of-tolerance units.
Seals block gear debris and iron powder from raceways while locking long-life grease against dilution and dry friction.
Large C3 internal clearance offsets high-speed thermal expansion, preventing overheating seizure and noise surges.
Internal drawings confirmed with DOBIKAR, small-batch bench samples validated, then mass supply with full vibration reports per shipment.
After equipping EGEN 6316-2RS-Z2V2 P6 bearings, DOBIKAR reducer noise steadily dropped 4dB to comply with factory environmental limits, abnormal-noise complaints fell 70%, and noise fluctuation between mass-produced gearboxes was minimized—helping DOBIKAR secure an annual full-set reducer supply contract with a leading domestic automation equipment enterprise.
More About EGEN
We are with 30 years of production experience and 20 years of export experience, Professional technical team and after-sales service.
EGEN is Your Best Choice!!!
© 2026 EGEN Bearing Technology Co., LTD. All Rights Reserved. | Site powered by matchPages | Privacy Policy | Sitemap
