slewing ring/swing bearing/swing ring for yuchai excavator outside diameter(da) inside diameter(di) mounting height(h) designation 545 380 50 yc13 573 380 55 yc15 573 380 55 yc18 3 573 380 55 yc20 640 473 55 yc35 640 471 55 yc35 800 590 70 yc55 800 590 70 yc60 86z 812 623 75 yc6 5t 90z 811 621 75 yc65 2 922 635 read more
the warning signs of bearing wear or failure. some of the premature failures experienced by slewing ring bearings can be prevented through careful monitoring of symptoms. one of the most basic indicators of slewing ring bearing problems is the condition of the lubricant. if metal particles or flakes are apparent, some form of wear is taking place.
excavator ec290b slewing ring, slewing bearing, swing circle. characteristic of struture, performance and application. the single row four points contact ball bearing is composed of 2 seat rings. it features compact in design, and light in weight.
tongli is a high technology company, with a strong research and development capacity delivered by our own institute of slewing ring research. four of the leading experts in the r&d have been involved in drafting the national slewing ring standards (jb2300 78 and jj36) since 1970s and 1980s, all having over 25 years of experience in slewing ring
dec 11, 2015 excavator swing bearing replacement fun version conequip 101 duration 13 43. conequip parts llc 119,665 views. 13 43. john deere 410 extend a hoe repair duration 26 23.
the slewing ring bearing has a moderate axial stiffness as the diameter is large relative to its section. after many working hours, this wearing part have to be change. this is due to the fact that it is subject to great stresses in particular the rolling swing bearing operations, in support during splitting operations by hydraulic hammer.
at a glance six steps to save slewing ring bearings. more than 96 of slewing ring failure could be avoided by following simple maintenance tips. grease regularly. apply a liberal shot of extreme pressure grease to the fittings around the bearing's circumference at intervals recommended in the operator's manual. purge with grease.
sep 26, 2011 watch his brief video and learn from jeff payne, a maintenance expert, how to maintain the swing bearing and swing gear on your a hydraulic excavator. reference your
nov 28, 2015 apologize a quite lengthy post and for pics being out of order but at least there r pics (everybody loves pics right) machine is kubota kh 41h mini excavator and the slew bearing is worn out because it had a remote grease fitting with a nylon line that was cracked so unknown to me the grease wasn't getting to it and was just piling up under the floor(50 cent part destroys $2000 part).
mar 20, 2018 i just bought a 1987 mitsubishi ms120 excavator and the issue is that when you start up or slowing down the swing the machine shakes. feels like the swing brake is chattering. i changed the drive oil with new 80 140w thinking there was a wet clutch in the drive. on top of the hydraulic motor there is 2 adjusters and one is missing the cap.