| 摘要 |
A drive unit, for example for a windshield wiper, is of the type-including a casing containing a motor, a drive shaft extending through bearings and seal, the bearings and seal being mounted in a sleeve portion of the casing, and a speed reducing mechanism coupling the motor with the drive shaft. The anterior part of the sleeve portion includes a thickened portion having a bore of reduced radius, in which is formed the seat for the seal.
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