1979-02-01

Modern Connecting Rod Bearings and Multi-Piece Crankshafts for Two-Cycle Engines 790845

The trend toward higher power to weight ratios, higher fuel to oil ratios, less noise, and better fuel economy, significantly affects the configuration of the crankshaft, connecting rod, and antifriction bearings in the modern two-cycle engine. The multi-piece crankshaft together with the one-piece connecting rod, the one-piece crankpin and wristpin cage bearing have been widely introduced in Europe. This concept permits higher speeds through less friction and promises to fulfill the requirements imposed on future two-cycle engines. Balanced component design, suitable size and form tolerances are essential factors for success.

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