Toro 1/8 Combo

[sikeston34m]

Originally Posted by BrianG

Hmm. I thought he was comparing to some HK motor.

This motor looks passable for a low budget motor, if you are ok with the whole China cloning issue and lower efficiency. But the rotor really needs to be wrapped - would add a lot to the reliability of the motor IMO.

Those magnets look fairly typical for a 6 pole motor. They could be a bit small, or maybe the magnets are a typical size but mounted on a larger than normal rotor.

The 6 pole concept does interest me. 6 poles on the rotor and 9 teeth in the stator field. This could add up to alot more torque.

The rotor not being wrapped is one corner that was cut.

They should have oversized the bearings, look a tad small to me.

They should have also used the thin field laminations.

Also, take a look at the stator field. The space between the teeth for the winding wire is quite small. This limited them on the number of strands they could have used for the number of turns.

In other words, with longer stator teeth, more winding strands would have produced much less resistence.

[BrianG]

Originally Posted by sikeston34m

The 6 pole concept does interest me. 6 poles on the rotor and 9 teeth in the stator field. This could add up to alot more torque.

The rotor not being wrapped is one corner that was cut.

They should have oversized the bearings, look a tad small to me.

They should have also used the thin field laminations.

Also, take a look at the stator field. The space between the teeth for the winding wire is quite small. This limited them on the number of strands they could have used for the number of turns.

In other words, with longer stator teeth, more winding strands would have produced much less resistence.

I agree with you about the bearings, laminations, etc, but those are all things that corners were cut on. The wrapping of the stator would help reliability to keep the system running, the rest would just improve efficiency and it is a budget motor after all.