Chrome-plated cylinders are made of high-quality steel.
A special technology is used - the inner hole is covered with a 2 mm thick layer of hard chrome, thanks to which the surface hardness reaches 58-62 HRC. The working inner surface of the bushings (cylinders) has a hardened layer with a depth of at least 2 mm and a hardness of 60...64 HRC, surface specularity 0,8.
The bushing is made of stamped blanks, which ensures high metal density on the inner diameter. The cylinders are subjected to high-frequency heat treatment and grinding, which ensures trouble-free operation of the bushings for more than 300 hours under normal conditions.
Borgpumps can offer bimetallic cylinders with an extended service life compared to chrome-plated bushings. Bimetallic cylinders are produced by centrifugal casting, the hardness of the working area is 62-67 HRC.
Advantages:
- high operational properties
- the service life is increased by 2-2. 5 times in comparison with traditional
- ones operating time under normal conditions is from 600 to 800 hours;
- heat treatment hardness of the inner skin reaches 60-67 HRC
- and has high corrosion resistance.
No questions about this product.
