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Pulley Retaining Washers
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Here are some more information for Pulley Retaining Washers:
Ball thrust bearings, sometimes referred to as a flat-race thrust bearings, are composed of ball bearings supported in a retainer ring and are held between two thrust washers. Thrust bearings allow smooth rotation under high thrust loads at low and medium speeds. Whether the rolling element is a ball, needle or a roller, they are designed for pure thrust loads, and can handle little or no radial load. Complete thrust bearing assemblies usually include two thrust washers and a ball retainer and typically come in standard and metric sizes, with custom sizes available.
Depending on the conditions in which you will use your thrust bearing, there are some considerations in choosing it's construction materials.
The ball retainer can also be made of different materials, such as nylon or metal. A nylon retainer offers several advantages over a metal one. Injection molded, heat stabilized nylon retainers are lightweight, provide a natural lubricity eliminating the need for lubrication. Nylon retainers are corrosion resistant, provide quieter operation and a long service life. Another important advantage is that nylon retainers are less expensive and make a great economical choice.
The remaining components, the ball bearings and thrust washers, should be chosen to match the application and environment in which they will operate. Typical material choices include stainless steel or hardened carbon steel. Stainless steel works well in environments where moisture, corrosives may be present. They are widely used for food and beverage processing machinery, medical devices and a wide range of applications where moisture may be present. A carbon steel thrust bearing with hardened steel components is a great choice for non-corrosive environments.
Combining the cost saving and performance advantages of a nylon ball retainer with the strength and durability of steel creates a new generation of economical high-performance thrust bearings. Typical applications include advertising signage, printing equipment, marine hardware, point of purchase displays, medical instruments, manual valves, and pharmacy automation.
Torque Transmission's cost-saving thrust bearing design incorporates the time-proven advantages of a molded nylon retainer, with hardened grade steel balls and washers. The self-lubricating property of nylon, combined with the high-grade bearings, reduces friction and the micro finish thrust washers reduce noise and increase durability.
Torque Transmission manufactures Thrust Bearings, Pulleys, Right Angle Gear Boxes & Speed Reducers and Roller Chain Sprockets in standard and custom sizes. Our product line is designed to provide our customers a comprehensive solution for fractional horsepower motion control and variable speed transmission applications. We draw upon decades of design and manufacturing experience to modify or customize any of our products to meet your specific application, quickly and economically. Our in-house design capabilities, tooling and manufacturing expertise allow us to respond quickly and to be your single-source supplier.
Polaris RZR Performance - Gain 10 mph for Free
An increasingly popular modification RZR owners are doing is removing the plastic spacer that is on the crank shaft in the drive clutch assembly. This can increase your to RZR's top speed by as much as 10 mph.
The RZR's transmission is a pulley based constant velocity transmission (PVT) that consists of 3 major assemblies, the drive clutch, the driven clutch, and the drive belt. The drive clutch and the driven clutch both consist of two conical shaped pulley halves, called sheaves. The transmission operates by sensing centrifugal force that cause shift weights to push against rollers that push the movable sheave closer to the other sheave to pinch the drive belt. The closer the two sheaves are pushed together the further out the belt is pushed.
Removal of this spacer allows the two sheaves to come completely together where the belt would move out to the largest diameter on the sheaves. We have found this will increase your RZR's top speed anywhere from 5-10 mph. Some will say this is going against the original design of the transmission, but we speculate that it was designed without the spacer and was added on later as an easy way to limit the RZR's top speed for liability reasons. We have heard some arguments that removal of this spacer will decrease the life of your drive belts, but we have yet to have any issues. A proper break in period at lower speeds for the first 100 miles on a new RZR or after a new belt is installed is highly recommended to ensure a longer belt life.
Removal of the plastic limiting spacer is a simple process that requires a clutch compression tool that can be purchased through your local Polaris dealer (part # 8700220)
1. Remove driver and passenger seats.
2. Remove panel that is behind the seats to gain access to the outer clutch cover.
3. Remove the push rivets and fasteners holding the rear seat base and remove from vehicle.
4. With a screw driver loosen the clamp that holds the clutch outlet duct to the clutch cover and slide it off.
5. Remove outer clutch cover screws and remove clutch cover.
6. Remove drive clutch assembly by removing the clutch retaining bolt that threads into the crank shaft. (Facing the rear of the vehicle the drive clutch is the clutch assembly on the left) To remove the clutch retaining bolt you will need to secure the drive clutch assembly, aka the spider cage to keep it from spinning. A wooden hammer handle slipped into the spider cage works well for this. The clutch assembly is pressed onto the crank shaft and can be fairly easy to knock loose by tapping on it with a rubber hammer. (This is where the factory service manual would tell you to use a drive clutch puller, which you can order through your local dealer, part # PA-48595)
7. Once the drive clutch assembly is removed take it to a work bench where you can install a spring compression tool. Once it is clamped down you can loosen the 6 3/8" bolts that hold the clutch cover plate on. Once bolts are removed you can then loosen the spring compression tool unloading the clutch spring and then remove the cover plate. Before removing the cover plate use a sharpie to mark where it is aligned with the drive clutch assembly. They need to be bolted back together the same way because it is the way they were balanced from the factory.
8. After the cover plate has been removed you can slide the main clutch spring off and then remove the plastic spacer that sat inside it.
9. With the plastic spacer now removed slide the clutch spring back on then with the clutch spring tool compress the assembly back together until you can get the 3/8" bolts started. Tighten them the rest of the way torqued to 20 ft pounds.
10. Reinstall sheave assembly by sliding it back onto the crank shaft, then re install the clutch retaining bolt that threads into the crank shaft. Be sure you have the lock washer, thick washer and the plastic collar on the way they came off making sure the plastic collar centers in the clutch shaft as you tighten. This bolt needs to be torqued to 40 foot pounds.
About the Author
To learn more about Polaris RZR's visit http://www.polarisrzrheadquarters.com where you'll learn everything you need to know about Polaris RZR parts, accessories, and long travel suspensions.
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