Core working condition characteristics of sand making machines/sand and gravel crushers
1. Force conditions: Super large impact and alternating heavy load
2. Dust environment: High dust and strong abrasion
3. Temperature operating conditions: Continuous high temperature and poor heat dissipation
4. Vibration condition: Strong vibration throughout the entire process
5. Water Quality and Corrosion Conditions (Water-washed Sand and gravel Line
6. Continuous operation condition: 24-hour non-stop operation
7. Material conditions: Multiple materials, mixed of soft and hard materials
ZWA’s ECM and ECML series of cylindrical roller bearings for mining equipment adopt integral high toughness, high wear resistance, brass cages which suitable for high speed and shock load conditions.
And the rolling bodies and rings are designed and processed in a strengthened manner by well-known international brands.
The processing accuracy is in accordance with the standards of famous international brands. This series of products are excellent in long life, low vibration and high speed, and ZWA has made special designs for ECML and ECM to meet the lubrication methods of different working conditions.
ZWA’s ECML and ECM are specially designed for different lubrication methods under different working conditions to meet customer’s tailor - made needs, and are widely used in various series of vibrating screens, sand mills, cone crushers and other mining equipment.

Advantages:
1. Bearing life is extended by one time.
2. Low noise and low vibration reduces to 25%-40%
3. Cage strength is greatly improved (stress reduction of more than 50%)
4. Limit speed increased by 10%-25%
5. Reliability of bearing use is doubled
