SKF
Mounting, Maintenance, and Dismounting (Mounted)
Proper mounting, maintenance, and dismounting ensure the mounted unit performs as intended. SKF provides detailed instructions for shaft and housing fit, bolt torque, alignment, and regreasing procedures. Dismounting techniques using pullers or hydraulic aids protect the shaft and housing for reuse. An effective maintenance plan, supported by SKF tools and training, minimizes unexpected failures.
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Recommended Bolt Torque Values
Ensures housing is securely fixed without distortion.
Shaft and Housing Fit Tables
Clearance and interference fits for correct bearing seating.
Regreasing Quantity and Procedure
Purge volume to refresh grease without damaging seals.
Inspection Intervals
Visual checks for seal integrity, grease condition, and housing bolt tightness.
Hydraulic and Induction Dismounting
Safe removal of bearing insert from shaft.
Training and On‑Site Support
SKF offers hands‑on training for maintenance teams.
Why Correct Fit Between Bearing Insert and Housing Bore Matters
If the housing bore is too tight, it crushes the bearing outer ring, reducing internal clearance and causing heat seizure. Too loose, and the ring creeps, fretting the housing and generating metal particles. SKF’s fit tables balance these risks, and the rubber seating ring option absorbs minor tolerance errors, protecting both components.
The 5‑Step Regreasing Procedure for Mounted Bearings
Clean the grease nipple. 2) Pump fresh grease in while the machine runs. 3) Watch for old grease to exit the purge port. 4) Stop when clean grease appears. 5) Replace the purge‑port plug. This simple routine, executed correctly, flushes contaminants and refreshes the lubrication film, tripling bearing life.