Rotary Engine 3-Window Main Bearing
Rotary Engine 3-Window Main Bearing
SKU: | 11114 |
Rotary Engine 3-Window Main Bearing
Racing Beat offers a replacement 3-Window Rear Main Bearing for the Racing Beat Type I 12A Rear and Type I 13B Rear Special-Deep Grooved stationary gears. This Mazda-OEM bearing is modified by Racing Beat to allow greater lubrication to the bearing when combined with a special Racing Beat-modified “deep groove” stationary gear.
$97.65
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STATIONARY GEAR 13B REAR, HARDENED, 360° MULTI-WINDOW BEARING 76-95
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This is an RX8 “High Power” hardened gear. We have them machined to take the “everything BUT RX8” rear gear O-ring. The RX8’s have NO groove for the big sealing O-ring. The RX8 O-ring goes in the rear side housing. These gears have 360° oil feed to the “multi-holed” RX7 bearing (#11114).
This is the bearing we recommend for about all Rotary engines. With the “multi-window” feed it works better that the stock bearing. The RX8 eccentric shaft has a little bit more clearance than an RX7 shaft so with this bearing you have that little bit extra. We have used this combo on our Road-Race engines, SHIFTING at 10,000 rpm with no problems (yes, few other mods like oil pump, light rotors, balanced, etc.)
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Browse our 3 Rotor Engine Parts Catagory.
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Select your main bearing size from this list of OEM Mazda sizes.
SKU: MainBearings 93-11 -
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