This pin & block (friction-bearing) drive shaft was constructed with high-strength design, accommodating high-torque applications and larger shaft diameters. It has a special, low-diameter sleeve, supporting an unusually long coilover spring, necessitated by the short overall length and amount of stroke and force involved. The hex-shaft is axially retained, to prevent disassembly at maximum length. The moving components are protected with lubricant retaining Nitrile boot covers.
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