|
|
 |
|
HYMARK BALL BEARING
CARRIER ASSEMBLY |
|
| The Hymark Performance Ball bearing
carrier for the Ski-Doo driven clutch is very unique in design. This carrier
assembly slides over the shaft of the stationary sheave and into the movable sheave taking
the place of the original helix. This Hymark Performance ball bearing carrier is machined
out of aircraft quality aluminum. And is hard anodized to increase life and reduce
friction. This bearing carrier uses special sealed ball bearings that are designed
to handle the high torque loading created by large displacement engines. The bearings fit
in special designed bearing pockets. Dowel pins hold the three bearings firmly in position
and are supported on both sides. This makes bearing replacement simple if the need ever
occurs. With the Hymark Performance ball bearing system installed in the Ski-Doo
driven clutch, performance is greatly enhanced. The snowmobile will accelerate
quicker and back shift much quicker. Belt life will increase due to significantly reduced
clutch temperatures. The much improved clutch efficiency means more horsepower can
be delivered to the track at all speeds. Hymark Performance is not only the leader
in bearing clutch technology but the only company to build a system that simply drops into
the stock Ski-Doo driven clutch with no machining necessary. Each and every
snowmobiler can benefit from using the Hymark Performance ball bearing driven clutch
system! Note: When ordering one bearing carrier assembly and one
helix as a unit, order helix part# KIT. Example: 88-S47.5 Kit.
88-SMB00378A: Bearing
carrier assembly
88-D2220-20PS: Replacement
bearings |
SKI-DOO
HARDENED STEEL RADIUSED HELIX |
| The Hymark Performance helix is a hardened
steel single point contact radius helix. This insures center contact of the roller bearing
surface throughout a variety of helix angles. Hymark Performance has developed a series of
helix angle profiles with our patented radiused contact surface. This helix is very unique
in design and is machined to fit into the bottom of the moveable sheave and over and
around the moveable sheave button towers. The helix is held into position by using three
"O"-ring segments that fit into the "O"-ring grooves that are machined
in the helix. Even though the radiused helix is made of high quality steel that is heat
treated to near bearing hardness, the special design adds only ounces to the driven
clutch. Each Hymark Performance helix is designed to last a lifetime. |
88-S45 Helix
88-S47.5 Helix
88-S50 Helix
88-S55/45 Helix
88-S50/40 Helix
Note: We do have some
other helix angles available
SKI-DOO
HELIX APPLICATION CHART |
| 88-S50 Degree Helix |
0 TO 4000 ft. elevation |
| 88-S47.5 Degree Helix |
4000 TO 8000 ft. elevation |
| 88-S45 Degree Helix |
8000 TO 12000 ft. elevation |
HYMARK DRIVEN
CLUTCH SPRINGS |
|
| Hymark Performance has developed several
new springs for our ball bearing clutch systems. We have also developed spring torque
charts and spring compression charts in order for one to more fully understand which
spring or springs would be desired. We would recommend as a starting point for all of the Ski-Doo
application, the use of our 88-HY206G, or our 88-HY201W spring, with the use of the helix
recommended for the elevation that one operates the snowmobile in. |
| 88-HY188P: Spring .188" wire
diameter |
| 88-HY192Y: Spring .192" wire
diameter |
| 88-HY201W: Spring .201" wire
diameter |
| 88-HY206G: Spring .206" wire
diameter |
 
PART# |
COLOR |
HEIGHT |
NUMBER
OF COILS |
COIL CENTER DISTANCE |
88-HY188P |
Purple |
4
1/4" |
5 |
7/8" |
88-HY192Y |
Yellow |
4
1/4" |
5 |
7/8" |
88-HY201W |
White |
4
1/4" |
5 |
7/8" |
88-HY206G |
Gold |
4
1/4" |
5 |
7/8" |
ROTAX PTO SEAL
PROTECTOR/RETAINER |
|
Getting tired of having to
replace the PTO crankshaft seals caused by the belt breaking, excessive crankcase
pressure, or engine backfires? Hymark Performance has designed a seal protector that also
acts as a seal retainer. There are two seal retainers, one that fits the 617 and smaller Rotax
engines and one that fits the new case 670 Rotax engine. These seal retainers are
made to mount in existing threaded bosses in the crankcase. These seal protectors are a
must for modified or turbocharged Ski-Doo in order to keep the seal from being
forced out of the crankcase. This seal protector/retainer is made of stainless steel for
strength, durability and corrosion protection. Every snowmobiler that uses a Rotax
engine should have this unit mounted to the engine.
88-583 Seal Protector / Retainer
88-670 Seal Protector / Retainer |
|
| |
|
|
|
|
|
