About SKF Adapter Sleeve H312:Adapter sleeves are the most commonly used components for locating bearings with a tapered bore onto a cylindrical seat as they can be used on :
• plain shafts
• stepped shafts
They are easy to install and require no additional location on the shaft:
• When used on plain shafts, the bearing can be located at any position on the shaft
• When used on stepped shafts together with an L-shaped spacer ring, the bearing can be accurately positioned axially, thereby facilitating bearing mounting and dismounting.
Ranges and features of SKF Adapter Sleeve H312:
• Standard metric assortment includes dimension series, H2, H3, H23, H30 and H31.
• Dimension series H32 is available on request
• Standard imperial assortment includes dimension series, HE2 and HE23
• All adapter sleeves are supplied complete with lock nut and lock washer
SKF Adapter sleeves H312 are the most commonly used components for locating bearings with a tapered bore into a cylindrical shafts seating.They are easily to mount, and require no additional location on the shafts. SKF Adapter sleeves H312 are produced from high-quality steel, have a very precise form, and an excellent price/performance factors ratio. SKF Adapter sleeves H312 are made as complete product, with lock nut and locking washer. SKF supplies metric adapter sleeves, series designations H.The dimensions are in accordance with ISO 2982-1:1995. SKF Adapter sleeves H312 consist of three elements: the actual sleeve, toothed washer MB. (for large sleeves lock washer of MS-type) and lock nut of KM or HM-type. The adapter number denotes the complete assembly of adapter sleeve, locknut and lockwasher. As the name implies, adapter sleeves adapt themselves to the shaft diameter, so that wider diameter tolerances can be permitted than for the seat of a bearing with a cylindrical bore. However, the form tolerances must be kept within narrow limits as the accuracy of form directly affects the running accuracy of the bearing.
The using of SKF Adapter sleeves H312:
SKF Adapter sleeves H312 are always supplied with a locknut and locking device. They can be ordered in metric or imperial dimensions, or to a customised design. A hydraulic process also enables easy installation and removal. With this design, the adapter sleeves and withdrawal sleeves have oil grooves and oil ducts. As adapter sleeves are used as bearing accessories, their product codes are based on the system for coding bearings. The product codes for adapter sleeves with metric dimensions start with H, even if the bore is given in imperial dimensions.