Kobelco
Oil seal for Kobelco CKE2500-2
This oil seal is designed for the Kobelco CKE2500-2 crawler crane to retain lubricants and prevent the ingress of external contaminants.
Compatible models
Specifications
- Part number
- ZD21T12500
- Brand
- Kobelco
The ZD21T12500 oil seal functions as a sealing component within the mechanical assemblies of the Kobelco CKE2500-2 crawler crane. Its primary purpose is to retain oil or grease within the housing while simultaneously blocking the entry of dust, moisture, and debris into the internal systems. By maintaining this barrier, the seal protects critical components such as bearings, gearboxes, and transmission shafts from premature wear and environmental damage.
This component is compatible with the Kobelco CKE2500-2 and is manufactured by Kobelco. It is typically installed at interface points where a rotating shaft or stem passes through a housing, such as in travel motors, swing reducers, or main bearing assemblies. The seal utilizes a design that maintains consistent pressure against the shaft surface to ensure a secure fit during operation.
Oil seals are used in heavy machinery to maintain the integrity of lubrication systems. By preventing fluid leakage and keeping contaminants out of the housing, these seals ensure that internal moving parts remain properly lubricated and free from abrasive particles. Maintaining the condition of these seals is a standard part of routine maintenance for heavy equipment to prevent friction and overheating in rotating assemblies.

