This is an internal one way bearing for use with SH engines. It may also fit other engines including Force and some VX engines.
Recent batches of SH engines have suffered with bearing failure where the casing of the internal bearing develops a hairline crack which gives the impression the bearing has failed. (The pull start just pulls but the engine doesnt turn over) This is a direct replacement for the original bearing, being made by SH, and from a differnt material batch so will not suffer the same issues.
Torque Rating is 1.76Nm