Repair analysis of flywheel and crankshaft bearings

Source: China Bearing Network Time: 2018-03-02

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flywheel:
The working surface touched by the flywheel and the clutch; if there is severe sizzling, cracking or wear; the groove depth exceeds 0.5 mm; the film should be applied. Otherwise, the clutch will tremble, slip and accelerate the wear of the friction plate. The working surface after the light grinding; only the annular groove marks without the remaining two are present. When the single or the end face of the flywheel tooth ring is worn and single damaged; the tooth ring can be displaced or reversed according to the situation. Adjacent tooth damage is more than four or severe damage; weld ring should be repaired or replaced. When pressing into the ring gear, the tooth ring should be warmed to 300-400 degrees.
Crankshaft bearing:
Upper bearing cap; tighten the fixing bolt according to the regular torque; use the cylinder table to check the out-of-roundness of the bearing housing hole; if it exceeds 0.05 mm; it should be welded or shimmed on both ends of the bearing cover for adjustment. New bearing Inside the hole; tighten the bearing cap nut; then loosen a nut; measure the gap with a thin gauge; should be 0. 05-0. 1 mm. Too high to remove a small amount; too low should be selected from the beginning. In the case of lack of data; it is possible to add the same thickness of copper to the opposite side of the bearing on the opposite side of the bearing. The opposite side of the bearing needs to be bright; the positioning convex should be intact.

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