Planetary Bearing 3106157

Planetary bearing for Caterpillar equipment, identified by part number 3106157. The part is used in planetary assemblies on the Caterpillar 784, 785, 789 and 793 machine series listed below. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The component is classified as a needle bearing and is designated as a planetary bearing. The application data identifies the equipment models on which this part number is used; the available information does not specify a separate machine-side mounting position beyond the planetary assembly.

Fitment

• Caterpillar 784B
• Caterpillar 784C
• Caterpillar 785B
• Caterpillar 785C
• Caterpillar 785D
• Caterpillar 789B
• Caterpillar 789C
• Caterpillar 789D
• Caterpillar 793B
• Caterpillar 793C
• Caterpillar 793D
• Caterpillar 793F

The fitment list covers the stated Caterpillar model designations only. Compatibility should be checked against the machine model, serial number and the part number removed from the planetary assembly before installation, because the available product data does not provide serial-number ranges or assembly configuration details.

Cross-reference numbers

• Caterpillar part number: 3106157
• Part number format: 310-6157
• Interchange number: 9U8243
• Interchange number: 1480329

Numbers 3106157 and 310-6157 identify the same listed bearing number in different part-number formats. The numbers 9U8243 and 1480329 are listed as interchangeable references for this planetary bearing. The available data does not assign a separate supplier name to each cross-reference number.

Specifications

The stated dimensions are outside diameter 2.9875 inches, inside diameter 2.142 inches and height 1.875 inches. No additional information is provided for bearing material, internal clearance, lubrication requirements, seal configuration, individual needle count or parts included with the bearing.