• Threadless Hydraulic Nut for Mounting/Dismounting Bearings
• Bore Diameter: 623.7mm (24.56in)
• Max working pressure: 25MPa (3600psi) 

Mounting bearings on tapered seatings can be a difficult and time-consuming job. Using an SKF Hydraulic Nut facilitates easy and quick application of the high drive-up forces required for mounting bearings. Dismounting bearings mounted on either adapter or withdrawal sleeves is also often a difficult and time-consuming job. These problems can be reduced with the use of an SKF Hydraulic Nut. Oil is pumped into the nut and the piston is pushed out with a force, which is sufficient to free the sleeve. All SKF HMV xxxE/A101 nuts are supplied with a quick connection coupling to fit the SKF hydraulic pumps.

The SKF Drive-up Method is a well-proven method, unique to SKF, of accurately achieving the adjustment of SKF spherical roller and CARB toroidal roller bearings mounted on tapered seatings. The method incorporates the use of an SKF HMV ..E hydraulic nut fitted with a dial indicator, and a high accuracy digital pressure gauge, mounted on the selected pump.

The correct fit is achieved by controlling the axial drive-up of the bearing from a pre-determined starting position, defined by the pressure in the SKF HMV..E hydraulic nut. The second stage is monitored by driving the bearing up a calculated distance on the taper seating.

The starting position pressure and the drive-up distance for many SKF bearings can be determined by using the SKF Drive-up Method PC program, available at skf.com or by downloading the iOS or Android app for smartphones and tablets. In addition, SKF’s unique information service for mounting and dismount bearings, skf.com/mount, also features the SKF Drive-up Method.

• More accurate and easier than using feeler gauges
• Greatly reduces the time to mount spherical roller and CARB toroidal roller bearings
• The only suitable way to mount SKF sealed spherical roller and CARB bearings