RC-Monster Forums - View Single Post - Direct to diff outrunner conversion*update*

sikeston34m · 09.26.2007, 05:54 PM

I hope Lucien doesn't mind me quoting him, but he already sent me some of the anticipated specs for the 40mm motors. I'll pass that information on to you.

"Initial plans for the 40mm motors are to have 4 frame sizes. There will be a 4020, 4025, 4035 and 4045 size motor. The 4020 and 4025 will basically be larger versions of the 3008 and 3014 size motors. The 4035 and 4045 will be made a little different, and will have an additional ring bearing that supports the back end of the motor's flux ring. This is done to stabilize the motor, and prevent flexing of the motor shaft under load. I have attached a photo that shows the rear end of a 4045 motor to show this bearing.

The approximate power ratings on the motors and the weights will be as follows:

4020 - 1200 watts, 280 grams, 9.88 ounces
4025 - 1500 watts, 328 grams, 11.57 ounces
4035 - 2000 watts, 488 grams, 17.21 ounces
4045 - 2500 watts, 585 grams, 20.64 ounces

There will be at least 3 different Kv's for each motor, and there may be 4-5 versions of the 4020 size. I have a set of 14 prototypes in the 40mm size right now and they are currently wound with the following Kv numbers, but this is subject to change once the final versions are decided upon.

4020-8 ....... 1000 Kv
4020-10 ....... 786 Kv
4020-12 ....... 701 Kv
4020-14 ....... 591 Kv
4020-16 ....... 526 Kv

4025-10 ....... 631 Kv
4025-12 ....... 565 Kv
4025-16 ....... 422 Kv

4035-10 ....... 446 Kv
4035-12 ....... 386 Kv
4035-14 ....... 328 Kv

4045-10 ....... 381 Kv
4045-12 ....... 315 Kv
4045-14 ....... 272 Kv

Hopefully that answers all of your questions.

Lucien Miller"

The new 30mm outrunner that I'm getting has the endbell bearing also. They are upgrading that line as well.

On the slipper idea, Is there a way to use a thrust bearing on the driveshaft and just control spring tension by how just pressure is on the bearing? Then make both sides of the clutch material stationary? This would move the adjustment to a more external location. The Thrust bearing would have to have a Spring Loaded housing with a "track".
Hmmmm, I'm still processing on this one. Let me read your post a few more times. LOL

	(#20)
sikeston34m RC-Monster Brushless Offline Posts: 2,085 Join Date: Sep 2007	09.26.2007, 05:54 PM I hope Lucien doesn't mind me quoting him, but he already sent me some of the anticipated specs for the 40mm motors. I'll pass that information on to you. "Initial plans for the 40mm motors are to have 4 frame sizes. There will be a 4020, 4025, 4035 and 4045 size motor. The 4020 and 4025 will basically be larger versions of the 3008 and 3014 size motors. The 4035 and 4045 will be made a little different, and will have an additional ring bearing that supports the back end of the motor's flux ring. This is done to stabilize the motor, and prevent flexing of the motor shaft under load. I have attached a photo that shows the rear end of a 4045 motor to show this bearing. The approximate power ratings on the motors and the weights will be as follows: 4020 - 1200 watts, 280 grams, 9.88 ounces 4025 - 1500 watts, 328 grams, 11.57 ounces 4035 - 2000 watts, 488 grams, 17.21 ounces 4045 - 2500 watts, 585 grams, 20.64 ounces There will be at least 3 different Kv's for each motor, and there may be 4-5 versions of the 4020 size. I have a set of 14 prototypes in the 40mm size right now and they are currently wound with the following Kv numbers, but this is subject to change once the final versions are decided upon. 4020-8 ....... 1000 Kv 4020-10 ....... 786 Kv 4020-12 ....... 701 Kv 4020-14 ....... 591 Kv 4020-16 ....... 526 Kv 4025-10 ....... 631 Kv 4025-12 ....... 565 Kv 4025-16 ....... 422 Kv 4035-10 ....... 446 Kv 4035-12 ....... 386 Kv 4035-14 ....... 328 Kv 4045-10 ....... 381 Kv 4045-12 ....... 315 Kv 4045-14 ....... 272 Kv Hopefully that answers all of your questions. Lucien Miller" The new 30mm outrunner that I'm getting has the endbell bearing also. They are upgrading that line as well. On the slipper idea, Is there a way to use a thrust bearing on the driveshaft and just control spring tension by how just pressure is on the bearing? Then make both sides of the clutch material stationary? This would move the adjustment to a more external location. The Thrust bearing would have to have a Spring Loaded housing with a "track". Hmmmm, I'm still processing on this one. Let me read your post a few more times. LOL