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TB088 Rev1 Recommended Coupling for Direct Drive Transmissions
Overview
Currently some machine tool builders are using a direct coupler that is misaligned and can come loose this coupler causes a very
noisy racket that sounds like a machine gun firing giving the false impression of a bad motor
The Noisy Coupler can be identified it is
Black steel with a black steel spring coupler washer
1 Best Solution
The best solution is to use a proper coupler Both KTR and Zero Max can supply you with an excellent coupler
Replacement Coupler's
KTR Rotex GS
model coupler size 28/38 It is silver in appearance and uses a red poly coupling KTR's phone # is 219 872 9100 and
their Email KTRcorp@ktrcorp com www ktrcorp com
Zero Max Inc
Servo Class # SC 050 Their phone # 1 800 533 1731
2 Alternative Solution Realigning the Noisy Coupler
If replacing the noisy coupler is not a option for you can try realigning it Remove the old coupler from the machine remove the screws
on the coupler place red loctite on the four screws and loosely reconnect the couplers Slide a 5/8" ground rod through both sections
thereby re aligning the couplers Tighten up the screws and remove the 5/8" ground rod Then place the coupler back on the machine
Document History
Rev1 Created on 2010 11 12
by #240