Du-Bro Motor Mounts

Part No.	A	B	C	Wt. Grm
DUB 682	2 1/32"	2.700"	4 13/64"	155
DUB 684	2 3/8"	3 5/32"	3 3/4"	175
DUB 688	2 3/4"	3 17/32"	4.180"	198

An effective way to reduce noise and more. When purchasing a Du-Bro motor mount, it is best to understand its fundamentals. Du-Bro's motor mounts are advanced in what they do, but remain simple in how they do it.

Vibration and harmonic resonance are by-products of your engine. In time, they can and will cause failure of something. It can show up in a broken hinge, a loosened clevis, fuel foaming, worn servo grommets, battery packs, receivers or even structural failure.

Du-Bro's patented designed motor mounts are very effective in reducing airframe vibration and greatly reduce fatigue on the entire airframe. They are a totally captive mount that cannot debond and break free. Looking at the exploded view, the spool is solidly bolted to the firewall. The elastomeric rides on the spool and the sleeve which bears the engine and surrounds the elastomeric. The outer rib of the elastomeric absorbs the initial torque loads of the engine while the inner solid portion leaves plenty of compression to effectively absorb the power impulses – which causes most of the vibration in your aircraft.

Part No.	PHOTO	Description	CART	Price
DUB 682	PHOTO	Motor Mount, .45 - .80 4-stroke engines, Du-Bro	ADD	$26.95
DUB 684	PHOTO	Motor Mount, .75 - 1.08 2-cycle engines, Du-Bro	ADD	$28.95
DUB 686		Motor Mount, .89 - .91, 4 Cycle, Du-Bro	ADD	$33.55
DUB 688	PHOTO	Motor Mount, 1.20 - 1.50 4-stroke engine, 1.20 - 1.80 2-cycle engines, Du-Bro	ADD	$32.95