SKF
Dismounting (Spherical Plain Bearings)
Dismounting spherical plain bearings must be done without damaging the housing bore or the pin, especially if components will be reused. Mechanical pullers or hydraulic extraction are used to push the outer ring from the housing. The inner ring can be removed from the pin using a bearing puller or induction heating if an interference fit exists. SKF provides tool recommendations and cautions against applying force through the sliding surfaces, which would cause brinelling and render the bearing unfit for reuse. Correct dismounting preserves mating component integrity.
Send an Enquiry
We'll get back to you on WhatsApp.
Trusted by Industry Leaders
Mechanical Puller Method
Outer ring extracted with a pulling plate and spindle.
Hydraulic Extraction
Oil injection or hydraulic nut for tightly fitted rings.
Induction Heating
Heat the housing quickly to expand it before pushing the bearing out.
Inner Ring Removal from Pin
Use a bearing separator or induction heater, depending on fit.
Re‑use Assessment
Check the bearing for brinelling, wear, and corrosion before re‑installation.
Housing Bore Inspection
After removal, measure bore for ovality and damage.
Induction Heating for Rapid Outer Ring Removal
A portable induction heater clamped around the steel housing can expand it by 0.1‑0.2 mm in minutes, releasing the interference fit on the bearing outer ring. The bearing then pushes out with minimal force, leaving the aluminium housing bore unscored. This is the preferred method for light‑alloy suspension linkages.
When to Replace Instead of Re‑using
If the PTFE liner shows exposed bronze backing, or if the steel‑on‑steel bearing has a brown‑heat discolouration or visible galling, it must be scrapped. Re‑using a worn bearing risks catastrophic failure of the linkage. SKF’s wear‑limit gauges provide a quick go/no‑go assessment for common sizes.