Lubrication Channels:
The bushings are machined with internal grease grooves. These grooves are precisely aligned with the lubrication passages in the linkage.
Their purpose is to ensure grease is distributed 360 degrees around the pin-to-bushing interface. This flushes out abrasive contaminants (like silica dust) and provides a continuous protective film to minimize metal-on-metal contact.
This 357-5709 bushing is used for 320D2 excavator.
Related part number:
166-1495
166-1496
114-8837
393-7930
393-7931
393-7933
416-1274
416-1276
468-5846
468-5847
468-5848
468-5849
468-5850
543-1979
514-7654
543-1980
540-2905
556-3006
558-1576
558-1577
571-0295
571-0296
571-0297
571-0273
166-1496
114-8837
393-7930
393-7931
393-7933
416-1274
416-1276
468-5846
468-5847
468-5848
468-5849
468-5850
543-1979
514-7654
543-1980
540-2905
556-3006
558-1576
558-1577
571-0295
571-0296
571-0297
571-0273
