H307 Adapter Sleeve 30×35×35mm with KM7 Lock Nut and MB7 Lock Washer Product Overview The H307 adapter sleeve is a precision-engineered bearing mounting accessory designed for installing tapered bore bearings onto cylindrical shafts. It provides a secure and reliable mounting solution while simplifying bearing installation and removal. The H307 adapter sleeve features a tapered 1:12 design and comes with a KM7 lock nut and MB7 lock washer. It is widely used with various