Hot Racing Low CG Transmission Gear Box (Axial 3-Gear)
About this part
This is an optional Hot Racing Low CG Transmission Gear Box for the Axial AX10, SCX10 and SCX10 II, as well as any other chassis that uses the standard Axial 3-gear transmission.
Features:
- CNC machined 6061 aluminum case
- Hardened steel gears
- Full ball bearing
- High gear reduction
- 11.4:1 internal gear reduction (in addition to the pinion/ 52T spur reduction)
- Supports 9T to 30T 48 pitch pinion gears
- Optional dig unit available (Hot Racing HRASCP38L01)
Includes:
- (1) low CG transmission
- (4) M3x8mm flat head cap screw
- (2) M3x8mm button head cap screw
Length: ~78.8mm
Width: ~18.8mm
Height: ~47.8mm
Comments:
- A 12T, 48P pinion will produce a 49.5:1 final drive ratio
- Optional dig unit available (Hot Racing HRASCP38L01)
- Replacement parts include: HRARSCP12SG (internal gear set - output shaft and gear are different), HRARSCP12CC (clear gear cover)
- Bearings are: 2x 10x15x4mm, 1x 4x10x4mm, 3x 5x10x4mm
Requires:
- Trimming of the rear axle should be expected
- Due to the large array of vehicle variants, additional axle trimming may be required
- Recommended to use black grease gear lubricant on gear train
Reviews2.3 · 4 reviews
This transmission does not fit the SCX10 skid plate. it can fit the SMT10 skid plate though.
I ordered this gear box recently and one set of the internal gears are grinding against each other, causing a loud whine when they spin. I can't even find a replacement gear set online... Very disappointed.
I ordered this hot racing aluminum low CG transmission about a month ago and I’m 100% disappointed. It has an extremely loud whining noise that sounds so horrible. I’ve tried different pinion gears and I’ve tried different greases and I’ve tried messing with the gear mesh running tight and loose. Nothing helped. I will never buy anything hot racing again. This transmission is an absolute waste of money and I’m gonna pull it out and literally throw it in the garbage, cuz that’s about all it’s worth. DO NOT BUY this transmission. If I could give zero stars, I would
I used this transmission along with a short outrunner motor and bowhouse skid on my scx10.2 project. Came out very nice! I took the transmission apart and inspected it before installation. Everything looked good, it had some high quality grease already. No complaints from me.
Reviewers are divided on this Axial 3-Gear low CG transmission. One verified owner rated it highly, reporting a clean build with good factory grease and no complaints. Two reviewers reported a loud whining noise from the internal gears, which one said persisted despite trying different pinions, greases and gear mesh adjustments; one of these reviewers said a replacement gear set was hard to find. Another review, rated 2/5, reported that the unit does not fit the SCX10 skid plate, though it fits the SMT10 skid plate. The reviews are few, so the overall picture is limited.
- + Good factory grease
- + Clean, high-quality build reported by one owner
- − Loud whining from internal gears
- − Replacement gear set hard to find
- − Does not fit SCX10 skid plate