HYMARK BALL BEARING CLUTCH SYSTEMS

The Hymark Performance ball bearing clutch systems are the finest most durable and precise shifting driven clutch systems available! We continually test and refine our products 12 months out of the year. This insures that our customers get the very best products that money can buy.

What we have found through years of testing in the snow and running our dune buggies in the summer months in the sand is that in our near frictionless ball bearing clutch systems, the helix angle selection is not near as important as the spring used. This is one reason that our spring selection is so large and the reason for the reduction of helix angles manufactured for this 1998 snowmobile season. Another reason, is that one can purchase five springs for the price of one helix and have greater tune-ability.

ARCTIC CAT 1997 580 CLUTCH (Polaris Copy)

New Hymark Double Helix Cam & Cover

ARCTIC CAT BALL BEARING CLUTCH COVER

There are many advantages to this clutch design. The cover is machined from 6061 billet aluminum for strength, long life, and precise balance. Bearing replacement is simple and inexpensive. This billet aluminum clutch cover uses the stock bushing. The bearings used in this cover are a precision double-row ball camfollower bearing.

88-SMB00407: 1998 AC cover assembly

88-SMB00294A: Cover assembly

88-D2220-19PS: Replacement roller bearings

88-24DU08: Replacement cover bushing

88-SMB00345: AC carrier and 50' helix (Polaris copy)

ARCTIC CAT HARDENED STEEL RADIUSED HELIX

The Hymark Performance helix is a hardened steel single point contact radius helix. A roller bearing clutch must have a radiused surface for the roller bearing to contact. This will ensure center contact of the roller bearing surface throughout a variety of helix angles. Without a radiused surface on the helix, the helix will actually create a side load on the roller bearings as it changes positions through varied helix angles and cause binding. To prevent this from happening, Hymark Performance has developed a series of helix profiles with our patented radiused contact surface. These helix are machined from high quality steel and heat-treated to near bearing hardness. Even though the radiused helix is made of high quality steel, the special design adds only ounces to the driven clutch. These helix are designed to last a lifetime.

For those who want to take advantage of the radiused helix technology but still wish to use the factory Arctic Cat roller bearing clutch cover we have available an aluminum spacer. This spacer allows for the use of our hardened steel helix that will get rid of roller bearing binding and wear.

88-A/C45: Helix

88-A/C47.5: Helix

88-A/C50 : Helix

Aluminum spacer

ARCTIC CAT HELIX APPLICATION CHART

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. In most of the new and older style Arctic Cat driven clutches, we would recommend the use of our HY-201W spring or the stock yellow spring. In the Polaris look alike driven clutch with the 50 degree helix, we would recommend the use of our 88-HY192Y,or our 88-HY188P spring.

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"