Rotary Motor Pinion Internal Ring Gear For 1/12 RC Hydraulic Excavator Rotary Parts

Key Features

• 15-Tooth Pinion — It has 15 teeth and an 8mm inner hole for the rotary motor of an RC excavator.
• 93-Tooth Ring Gear — It has 93 teeth, a 104mm outer diameter and 13mm thickness, and it is used to make the ring gear of an excavator turntable.

Product Specifications

• Material: Steel
• Piece Count: 1 pcs
• Scale: 1/12
• Inner Hole: 8mm
• Teeth (Pinion): 15
• Teeth (Ring Gear): 93
• Outer Diameter: 104mm
• Thickness: 13mm

What It Is / How It Works

This internal ring gear is a steel gear part for a 1/12 RC hydraulic excavator's rotary system. It is the rotary motor pinion internal ring gear, used where the excavator's turntable is driven by a rotary motor.

Who It's For / Use Cases

Gear parts like this suit RC hobbyists who build or repair a 1/12 scale hydraulic excavator. They suit modelers who want to match the inner hole, tooth count and outer size of the original gear during a rebuild, and who are comfortable fitting a metal gear into a rotary motor assembly.

How to Use / Care

1. Fit the 8mm inner hole onto the rotary motor of your RC excavator.
2. Use it to make the ring gear of an excavator turntable, using the 93-tooth, 104mm outer diameter gear.

How to Choose

Check the 8mm inner hole, 104mm outer diameter and 13mm thickness against the part you are replacing or building around. It is made for 1/12 scale excavators, so choose it for that scale.

Frequently Asked Questions

Does it need a battery?
No. It has no battery or power supply, and batteries are not included.

What material is it made of?
It is made of steel.

What scale is it for?
It is made for 1/12 RC hydraulic excavators.

How many pieces come in the pack?
The pack has 1 piece.

What are the inner hole and outer size?
The inner hole is 8mm. The outer diameter is 104mm and the thickness is 13mm.