âž” fig ). âž” fig ).The film of pressurised oil separates the two mating surfaces and makes the bearing industrial slide off easily. Bearings mounted on adapter orwithdrawal sleeves are most easily Bearings with tapered bore

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Product information

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Recommendations

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Product data To remove spherical roller bearings from tapered journals, the oil injection method is recommended ( Bearings with cylindrical bore Page ............. 3 Dismounting Page ............. 32

Dismounting

Small bearings can generally be re- moved using a mechanical puller. These withdrawal tools should grip over the rings from the inside or outside and contact the side faces.Dismounting larger bearings withbore diameters of 80 mm and above with an interference fit on the shaft is considerably eased, if the SKF oil injec- tion method is used ( Safety note
Fig 10 To avoid damage or accidents when dismounting bearings from tapered seatings using the oil injection method, always make sure that the bearing is blocked at the shaft end, e.g. by a lock nut, to prevent it from falling off. The force required to remove a bear-ing is generally greater than the mounting force, particularly if, after a long period of service, fretting corro- sion is present. If bearings or other associated components are to be re- used after inspection, they must be dismounted as carefully as they were mounted, and the dismounting forceshould never be applied through the rolling elements.

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âž” fig ). removed using a hydraulic nut ( âž” fig ). By using sleeves with oilducts and oil distribution grooves, the oil injection method easily facilitates the removal of large bearings (
Dismounting a bearing from a tapered journal using the SKF oil injectionmethod 11 12 9 See alsoSKF publication 4100“SKF Bearing Maintenance Handbook”.
10 Dismounting bearings on adapter andwithdrawal sleeves with hydraulic nutsDismounting a large size bearing on withdrawal sleeve with oil ducts and grooves Fig 11 Fig 12 27