Lawless flex cable

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Eric Mattson

Well-Known Member
Joined
Jul 5, 2020
Messages
57
For 3.5 lawless lower that milled out, so the coupler sits down into the unit, I know a custom length flex cable has to be used, who makes custom flex cables for lawless 3.5?
 
Standard Lawless drives with FE adapter use standard cable. Drives that have been machined to accept FE motor without adapter requires a shorter cable. I had mine made at 3 7/8”. Most applications would probably work fine at 3 3/4”. At 3 7/8” with some motors I still have to cut a little of of armature shaft for a close fit.
 
I can’t answer that one. I was speaking of the 3.5 drives. I did talk with Fred this past week. I think that there are little to no machined out 7.5 drives out there. But, since standard 3.5 cables work with the FE adapter. I would think that a standard 7.5 cable would work using an adapter. A quick call to him would give you the most correct answer.
 
A few answers to clear up any confusion.
I get my flexshafts from Hyperformance, including the special ones for the "low" style FE setup. The cables I have are exactly the same as the ones he sells on his website, with the exception of the short one which is special, and they are made to 3-3/4" length. They are longer than the Thunder Tiger flexshafts by about 1/4", and TT shafts are just a bit too short for the FE conversion. .
The 3.5 and 7.5 drives were designed to be very close to 100% compatible with the K&B products, with one exception. The teflon sleeve in the 3.5 drive is one gage smaller than K&B uses. The machines groove in the drive is properly sized for the smaller sleeve, so you can't use K&B sleeves in that drive.
The only difference in the 7.5/11/13 cc application is the mounting plate on the 7.5 size drive. The 11/13 size has a different pattern and they are thru-drilled, not tapped. Since Rossi motors have a raised ring around the output shaft, I also make special mounting plates for them.
I hope this helps.
 
A few answers to clear up any confusion.
I get my flexshafts from Hyperformance, including the special ones for the "low" style FE setup. The cables I have are exactly the same as the ones he sells on his website, with the exception of the short one which is special, and they are made to 3-3/4" length. They are longer than the Thunder Tiger flexshafts by about 1/4", and TT shafts are just a bit too short for the FE conversion. .
The 3.5 and 7.5 drives were designed to be very close to 100% compatible with the K&B products, with one exception. The teflon sleeve in the 3.5 drive is one gage smaller than K&B uses. The machines groove in the drive is properly sized for the smaller sleeve, so you can't use K&B sleeves in that drive.
The only difference in the 7.5/11/13 cc application is the mounting plate on the 7.5 size drive. The 11/13 size has a different pattern and they are thru-drilled, not tapped. Since Rossi motors have a raised ring around the output shaft, I also make special mounting plates for them.
I hope this helps.
Hello where can I purchase flex shafts and Teflon liner for lawless 3.5 electric convershion
 

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