How To Repair Wheel Bearings. Torn Tendon Repair
How To Repair Wheel Bearings
- The assemblies that permit smooth rotation between the wheel hub and spindle.
- (How To’s) Multi-Speed Animations
- A how-to or a how to is an informal, often short, description of how to accomplish some specific task. A how-to is usually meant to help non-experts, may leave out details that are only important to experts, and may also be greatly simplified from an overall discussion of the topic.
- Practical advice on a particular subject; that gives advice or instruction on a particular topic
- Providing detailed and practical advice
- Fix or mend (a thing suffering from damage or a fault)
- Put right (a damaged relationship or unwelcome situation)
- restore by replacing a part or putting together what is torn or broken; "She repaired her TV set"; "Repair my shoes please"
- the act of putting something in working order again
- a formal way of referring to the condition of something; "the building was in good repair"
- Make good (such damage) by fixing or repairing it
Measuring final drive backlash
I'm rebuilding the back half of my motorcycle. This is the "Final drive" and is the achilles heel of BMW shaft-drive motorcycles. They're incredibly well built and reliable motorcycles, but these final drives fail in large numbers due to bearing failure. The big bearing you see here bears the load of the rear wheel in a single-sided swingarm configuration. There is a smaller, conical bearing on the other side of this, and together, they keep the axle running straight. There is a pinching pressure between these two bearings. It's a bit like the headset or wheel on a bicycle. If you have the bearings too tight, they fail from wear, and if they're too loose, they fail from impacting and denting. Mine was loose. The problem with the design is that it takes a lot of time and patience to measure and adjust the pressure, so they don't get done right at the factory and they fail.
So this is a rig I came up with to measure the backlash. This is the slop between the crown gear and the pinion that connects to the driveshaft. It affects how much total slop there is in the driveline before the gears engage.
Winter 2010
Don't miss our first classes of 2010! Take one, take them all!
DETAILS:
Jan. 21: Flats! Absolutely everything you'd ever want or need to know about fixing flat tires.
Jan. 28: Brakes! Achy-brakey bike? We'll cover fixing various brake issues and learning about different kinds of brakes.
Feb. 4: Gear Fear? No more. Demystifying your derailleur,adjusting your gears.
Feb. 11: Bearings wearing? Learn how to adjust your hub and bottom bracket.
Feb. 18: Wheels! Become well-"spoke"n with this in-depth exploration of wheel tension and opportunity to practice spoke replacement and wheel truing.
**New for 2010**
If the Feb. 11 bearing adjustment class wasn't enough - let's go inside for an overhaul to clean and repair bearings in your headset, bottom bracket, and hubs. Get your hands dirty and see what's going on inside these moving parts!
Feb. 25: Headset & Bottom Bracket Overhauls
Mar. 4: Hub Bearing Overhauls
Stop by the shop or call 617-524-BIKE to register!
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