Standard Jaws (SJ) Self Centering Chucks

Standard jaw chucks are supplied with one set forward, one set reverse, handle & mounting bolts. The chuck has the following features: 

BODY
Semi-steel bodies are manufactured from high-tensile grade 25 cast iron with a hardness of 180-210 BHN.

JAWS
Jaws are made of low carbon case hardening steel and hardened in a modern heat treatment plant with a hardness of 55-60 HRC

SCROLL
Scroll plates are manufactured from forged wear resistant alloy steel with a hardness of 40-45 HRC.

PINION
Pinions are made of case hardening alloy steel with a hardness of 40-45 HRC.

SPECIAL FEATURES

■ Knob & jaws ways of body hardened & ground.

■ Scroll bore & threads precisely ground from both sides.

■ Jaws teeth precisely ground from both sides.

■ Hardened & ground pinion.

■ Accuracy less than 0.05mm of 160-315 mm chucks.

■ Parts interchangeable.