Finishing:
Grinding: After heat treatment, the part may have distorted slightly. The ID and OD are precision ground to achieve the final, exact dimensions and a very smooth surface finish. This ensures a perfect fit with the pin and the linkage boss.
Phosphating or Black Oxide Coating: Many Caterpillar bushings receive a final surface treatment. This creates a thin, non-metallic coating that:
Provides corrosion resistance.
Aids in run-in lubrication during initial operation.
Helps retain grease on the surface.
This 244-4149 bushing is used for 385C excavator.
Related part number:
3B-8489
093-0090
093-0122
093-0349
093-0364
133-2427
134-9031
305-6476
228-5617
244-4149
8T-4123
8T-4780
9X-4597
9X-4601
093-0090
093-0122
093-0349
093-0364
133-2427
134-9031
305-6476
228-5617
244-4149
8T-4123
8T-4780
9X-4597
9X-4601
