Short Description: Restore the heart of your engine with this high-precision crankshaft front bearing. Essential for ensuring smooth crankshaft rotation and long-term engine reliability, this part is critical for any professional engine overhaul.

Technical Specifications:

• Compatibility: Dnepr MT-11 (and compatible KM3-8.155 series models)
• Manufacturer Code / SKU: 209
• Part Type: Engine / Crank Gear

Purpose and Role in the Motorcycle (based on the original manual):
The crankshaft is the primary rotating component of the Dnepr MT-11 engine, cast from high-duty cast iron to withstand immense combustion pressures. To ensure stability and minimal friction, the crankshaft is supported within the aluminum alloy crankcase by two main bearings. The SKU 209 is the single-row radial ball bearing located at the front end of the engine. Its primary role is to support the front journal of the crankshaft, which in turn drives the centrifuge and the timing gear. Because this bearing operates in a high-stress environment, any wear can lead to crankshaft misalignment, increased vibration, or audible knocking. Replacing this bearing during an engine rebuild is vital to prevent premature wear of the crankshaft journals and to maintain the precise timing of the valve gear.

Benefits of Buying:

• Exact Factory Specifications: Guaranteed compatibility with the MT-11 crankcase and high-duty cast iron crankshaft.
• Reduced Internal Friction: High-grade radial balls minimize rotational resistance, contributing to smoother engine operation and improved efficiency.
• Enhanced Engine Longevity: Replacing worn bearings eliminates crankshaft "play," protecting other critical internal components from catastrophic failure.