Variants for oil injection

Adapter sleeves with oil supply ducts and distribution grooves are available to enable use of the oil injection method to mount and dismount bearings (OH, OSNW and OSNP series, fig. 1, fig. 2, fig. 3 and fig. 4).
Thread details for the oil supply ducts and the appropriate hydraulic nut designations are listed in the product tables. For information about oil injection equipment, refer to the catalogue SKF Maintenance and Lubrication Products or visit Maintenance products.
Metric sleeves with a bore diameter ≥ 200 mm (size ≥ 44) are equipped with the necessary ducts and grooves as standard. For metric sleeves with a bore diameter ≥ 140 mm (size ≥ 32) and inch sleeves with a bore diameter ≥ 4 5/16 in. (size ≥ 26), these features are available on request.
SKF manufactures oil injection sleeves in four variants that differ in the number and arrangement of the oil supply ducts and distribution grooves:
  • designation suffix H (fig. 1)
    These are the SKF standard adapter sleeves for oil injection. These sleeves have an oil supply duct at the threaded end of the sleeve and a distribution groove in the outside surface.
  • no designation suffix (fig. 2)
    These sleeves have an oil supply duct at the end opposite the threaded section and a distribution groove in the outside surface.
  • designation suffix B (fig. 3)
    These sleeves have one or two oil supply ducts at the end opposite the threaded section and a distribution groove in the bore and in the outside surface. Metric and inch sleeves with a bore diameter < 200 mm (size ≤ 40) have one supply duct. Larger metric sleeves have two. Larger inch sleeves are made to order and can be supplied with one or two supply ducts on request. When sleeves have two supply ducts, each duct feeds one of the distribution grooves. An arrow on the sleeve side face, next to the duct inlet, indicates which groove the duct feeds.
  • designation suffix HB (fig. 4)
    These sleeves have one or two oil supply ducts at the threaded end of the sleeve and a distribution groove in the bore and in the outside surface. Metric and inch sleeves with a bore diameter < 200 mm (size ≤ 40) have one supply duct. Larger metric sleeves have two. Larger inch sleeves are made to order and can be supplied with one or two supply ducts on request. When sleeves have two supply ducts, each duct feeds one of the distribution grooves. An arrow on the sleeve side face, next to the duct inlet, indicates which groove the duct feeds.
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