Sunnysky announced the release of the 0703 sized motors- Sunnysky R0703. Sunnysky R0703 motors have ball bearings with shaft lock clips instead of the brushings in the other similar motors that are present on the market. Motor mount holes will probably have different measurements because of the ball bearings. Motor shaft is 2mm at the base and 1mm at the propeller mount, just as the bigger Sunnysky brother – R0705 motor.
Sunnysky R0703 motors will be available in 12000KV and 15000KV. They are rated for up to 2S batteries.
Listed @ Banggood: https://www.banggood.com/Sunnysky-R0703-0703-12000KV-15000KV-1-2S-Brushless-Motor-for-Racing-Drone-p-1220973.html
Brand Name: Sunnysky
Item Name: 0703 12000KV / 15000KV 1-2S Motor
Stator Diameter: 7mm
Stator Thickness: 3mm
Motor KV: 12000KV / 15000KV ( Optional)
No. of Stator Arms: 8
No. of Stator Poles: 10
Motor Resistance: 200mΩ
Max. Lipo Cell : 2S