The bushings are manufactured from 20X steel and undergo the following production stages.
the following production stages:

• billet cutting
• normalization
• machining
• carburizing
• machining
• volume hardening
• tempering
• grinding
• phosphating
• INSPECTION
• packing.

At the finish the hardness of the bushings is 48-52 HRC

Axles and pins are made of steel 40Х, 40ХН2МА
and undergo the following production stages:

• billet cutting
• heat treatment
• high tempering
• machining
• HFI hardening
• low tempering
• grinding
• INSPECTION
• packing.

At the finish the depth of hardening of fingers is 3-4 mm, surface hardness of fingers is 55-56 HRC