FSa-56 Replacement Crankshaft OS44602000 by O.S. Engine  [OS44602000]

FSa-56 crankshaft — service replacement

This O.S. Engine OS44602000 crankshaft FSa-56 serves as a service replacement for compatible RC model engines, provided as the bare rotating component for rebuilds and maintenance. It is intended to return worn assemblies to correct running condition without extra fittings.

Functionally the crankshaft converts piston reciprocation into rotary motion and works with connecting rods and bearings in small nitro or glow engines. Before installation inspect journals, pin fits, and the rolling bearing surfaces to ensure the assembly will operate smoothly and avoid accelerated wear.

Installation advice: observe proper bearing orientation, check endplay and radial runout with simple measuring tools, and renew seals or bearings when necessary. If machining or weight changes occur, rebalance the assembly. Use correct torque values on retaining hardware and avoid over-stressing nearby components.

This O.S. Engine OS44602000 crankshaft is supplied to restore rotating assembly function during engine rebuilds and to support routine maintenance and tuning tasks.