Description
Before purchasing please make contact to ensure you receive the correct item, you’re vehicle chassis number will be required before the Differential can be shipped.
PURCHASING:
Shot Peened & Super finished Genuine BMW Motorsport Final drive Gear set (4.10) Ratio
TO FIT:
• E36 210 2.2 CD
• E36 210 328i Cab
• E36 210 328i M Sport
• E36 210 M3 Evo
• E46 210 330 CI
• E46 210 M3
• E9X 215lw M3
(Large M14 crown wheel threads for ring gear bolts)
PART NUMBERS
non applicable
DESCRIPTION:
Kit consists of the following:-
1x 4.10 Pinion
1x 4.10 Crown Wheel
SHOT PEENING:
Shot peening has been shown to increase the fatigue life of metal parts, including gears. It is important to note, however, that it is possible for parts to be over-peened, which will reduce the fatigue life of the gear. With that in mind, it is important to consider test peening during the gear design process. The dimples on the surface created by the peening process create more surface area, thereby helping oil remain on the gear teeth. For parts made of material Rc 50 and under, regular media Rc 45-52 is recommended. The size of shot used should be half (or smaller) of the smallest radius that is being peened.
All this added stress to the gearset compacts the material making the gearset more dense adding strength to key areas such as the tooth root, tip and flank.
REM: (Super Finished Gear Kit)
What is REM ?
REM ISO Super finishing has a massive benefit
Significant Reduction in Surface Friction: Less friction means more horsepower
Reduces Wear on Metal to Metal Contact Surfaces: Less wear means expensive parts last longer and races get finished
Reduces Lubricant Temperatures: Lower operating temperatures benefit any component
Reduces Vibration and Noise: We all know how this can benefit a racing drive train
REM treatment results in a smoother surface. The end result is less friction, less heat, and less wear. Any machined part has high and low areas left over from machining, grinding, etc. Those high spots become the initial contact points which in turn can become localized hot spots. Those localized hot spots can take the temper out of the heat treated area of the surface and then become a pit. REM reduces that possibility.
Other benefits include elimination of stress risers on the edge of parts and less friction on any metal on metal surfaces.”
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