Driven Sprocket Assembly Adapter The older design uses the

The older design uses the B35 belt

21 Woodruff Key installed

of torque and 140 rpm approx

This is the ratchet wheel that is bolted to the right rim of the T-4 Trencher when viewed from the operator's position

Note: The 5-tooth design is no longer available

Driven Sprocket Assembly Adapter The older design uses thePart Number: 60161 A This is the complete digging chain driven sprocket asssembly. New roller design replaces older 5 tooth design for greatly improved wear characteristics. Assembly includes one Part# 60161 Roller with one Part# 60156 Bearing and two Part# 60166 Spiral Rings installed. Note: The 5 tooth design is no longer available.