LDK Bearings - Professional bearing manufacturer for all kinds of bearing unit since 1986 


In daily life, fans are indispensable in many places. From factories, stations, mine tunnels,shopping malls, office buildings, and even small kitchens, fans are essential to ensure air circulation. Bearings are important to ensure the normal operation of fans. The long-term operation of the fans requires the bearings have their own characteristics, such as reducing vibration, reducing wear on the main shaft, and easy to lubricate. 

The bearings with rubber sleeves produced by LDK can greatly reduce the vibration and the noise during work. At the same time, Thanks to the innovative concentric locking method, bearing can be more tightly combined with the main shaft thus greatly improve the energy efficiency and lifespan of the fan.

Special features

- 100% noise tested to Electric Motor Quality (EMQ) standards.

- 100% testing of alignment torque.

   Bearings and housings are individually matched to achieve an air handling fit.an unique set of tolerance to ensure

   easy alignment and prevent bearing pre-load when mounting onto a light weight frames.

- Each bearing is manufactured with AISI 52100 bearing steel, G10 grade steel ball, low noise retainer and low noise grease.

- Smaller bore tolerance allows for a tighter fit with the shaft. This in turn, reduces vibration 

   and noise and dramatically increases bearing life.

- Internal bearing clearance is defined as the allowable space between the rolling elements and raceways.

   LDK uses an appropriate clearance which reduces the noise and vibration in high speed applications.

- Non-Contact seal is available for the lighter torque.

- Nylon patched grub screw is proven to provide greater locking power between the bearing and the shaft.

Application:HVAC equipment such as exhaust fans, heating fans, blowers, cooling towers, exhaust ventilators etc.

Common types:

Pillow blocks bearing units: UKP, UEP, UEF

Stamped steel units: RSAPP / RSBPP

Rubber Mounted Cartridge Units: RSA / RSB

Available in any housing and 4 major locking style combination.

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They are all manufactured according to the strictest international standards. Our products have received favor from both domestic and foreign markets.
They are now widely exporting to 200 countries.

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