Full definition
Tapered split bushing with external thread and locknut that fixes a tapered-bore bearing (taper 1:12 or 1:30) onto a plain cylindrical shaft by creating an interference fit. Allows free axial positioning and easy dismounting. Designation: H series (mounting), OH series (with oil injection groove for dismounting). Shaft diameters: 10–340 mm. ISO 113 standard. Brands: SKF, FAG, NTN, NSK. Widely used in industrial plummer block housings.