Brand new budget brushless motors from Solink. After running one for a short while I've noticed they have great heat efficiency and performance. Reliability apparently is quite high from reports and reviews online. I've tested with 7.4v and 11.1v LiPo and works fine with both of those with Solink saying you get the near identical torque.
According to Solink you can use AB and Precock, they claim their brushless motors are fully compatible with all ETU's, however please take this with a pinch of salt. I would still recommend you tread lightly when it comes to AB.
Please Note:
Not recommended for use with Gate NGRS ETUs. It works but only with 11.1v which means you will need to short-stroke the sector gear by 1 tooth.
Here's some blurb from the official Solink website:
★ Extended Durability: Designed with a stationary coil, the Solink brushless motor is built to last. This design significantly extends its lifespan compared to traditional brushed motors.
★ Strong Torque: With its high torque capacity, the Solink brushless motor can effortlessly handle powerful springs, making it a robust and reliable choice for demanding applications
★ CNC shell and D Type Pinion Gear : CNC shell can greatly help heat dissipation while D type pinion gear design is compatible with most current Airsoft brands.
The hardness rating of the pinion gear is measured at HRC35-38.
The shaft sleeve bearing specifications are as follows: outer diameter of 7.938 and an inner hole diameter of 3.175.
Solink haven't themselves said given any ETU guidence / what to avoid. I've been pushing them but still nothing, so for the time being I would avoid Active Breaking at the least.
Statistics with 11.1v
AT NO LOAD
SPEED =31100RPM
CURRENT =1.8A
AT MAXIMUM EFFICIENCY
EFFICIENCY=72.7%
SPEED =27911RPM
TORQUE =409 G.CM
CURRENT=14.8A
OUTPUT =118 WATTS
AT MAXIMUM OUTPUT
EFFICIENCY=45.5%
SPEED =15500RPM
TORQUE =1919G.CM
CURRENT =56 A
OUTPUT = 291WATTS
Motor Grip Modification:
I'll list up ones here when I start getting reports in but assume anything that isn't "standard" you'll need to modifiy the motor grip plate.
IMPORTANT
1. Do not power the motor with the cables reversed. Always check this.
2. Solink state that this is the most ETU compatible motor on the market and can be used with AB should you need to, however take with a pinch of salt.
3. As with all motors if you get a gearbox lock-up, don't keep your finger on the trigger trigger. Use common sense.
4. If changing the pinion yourself do not force it on, do not whack with a hammer! Too much force will damage the rear bearing or controller. There's some good guides on YT on how to remove pinion gears on brushless motors.