5M-7925 needle roller bearing for CAT bulldozer spare part

5M-7925 needle roller bearing for CAT bulldozer spare part Featured Image
  • 5M-7925 needle roller bearing for CAT bulldozer spare part
  • 5M-7925 needle roller bearing for CAT bulldozer spare part

Short Description:

Needle roller bearing 5M-7925 for CAT planetary set. Compact design with heavy radial load capacity, fitted in planetary gear bore to support rotation and reduce meshing friction inside transmission.

Product Detail

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description

This is a caged needle assembly without separate inner and outer rings. Shaft and gear bore serve directly as raceways. Compact size and high load rating. Broken needles, fractured cage, scored raceway and poor lubrication lead to planetary noise, excessive play and binding. Heavy load may damage sun gear and ring gear.

Part No.: 5M-7925
Part Name: needle roller bearing
Matching Equipment: CAT 824/834 wheel dozer, 825/826/836 compactor, D8L/D9L/D9N/D9R/D9T/D10N dozer
Size: ID 42.4mm, OD 58.3mm, Width 32mm
Installation Position: Bore of planetary gear inside transmission
Matching Parts: planetary gear, thrust plate, sun gear, ring gear, gear oil selected as overhaul set on demand

Application Scenarios

Fit for CAT 824/834 wheel dozers, 825/826/836 compactors, D8L/D9L/D9N/D9R/D9T/D10N track-type tractors. Suitable for mining and heavy earthmoving. Used to replace damaged needle bearing during transmission planetary overhaul.

FAQ 

Q: The bearing looks intact but sounds gritty when rotated, can it keep running?
A: Not recommended. It indicates pitting on needles or raceway.
Cage may break under heavy load and cause gear failure.

Q: Can I only replace the needle bearing if the shaft is worn?
A: No. Shaft surface acts as raceway. New bearing will wear rapidly on worn shaft, repair or replace shaft together.

Q: Can the bearing be reused after needles fall apart and reassembled?
A: No. Needles may have invisible impact damage after scattering, new bearing replacement is required.

Q: Only one bearing damaged in a planetary set, can I replace only this one?
A: Not recommended. Remaining bearings bear the same heavy load with hidden fatigue risk. Full set replacement ensures consistent service life.

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