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HYMARK BALL BEARING CLUTCH SYSTEMS

BALL BEARING CLUTCH

Arctic Cat has built a new roller clutch cover for some of the 1998 year model snowmobiles. Our same hardened steel single point radius helix fits this new clutch the same as the older clutch that has been used for years. The Hymark Performance ball bearing cover for this new clutch however is different. If one is not certain which clutch they have, all they have to do is measure the round steel portion that is not threaded which protrudes above the cast aluminum rectangular tower, the older clutch measures 1 3/16" high and the newer clutch measures 7/16" high. Through continued refinement and testing Hymark Performance has narrowed the helix selection to three basic helix angles, 45, 47.5, and 50 degree angles that we recommend for most applications. We still have a large selection of helix angles available in inventory. Arctic Cat built a third clutch that was available in 1997 on 580 E.F.1 models only. This clutch looks like a Polaris driven clutch. The Hymark Performance ball bearing clutch system for the Polaris look alike comes with only one helix option, and that is a 50 degree helix. However, the same 88-HYmark springs that are available for all of our ball bearing clutch systems will work with this clutch.

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.

Clutch

Cam and Cover

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

Note: We do have some other helix angles available upon request

 

ARCTIC CAT HELIX APPLICATION CHART

88-A/C50 Degree Helix 0 TO 4000 ft. elevation
88-A/C47.5 Degree Helix 4000 TO 8000 ft. elevation
88-A/C45 Degree Helix 8000 TO 12000 ft. elevation
 

HYMARK DRIVEN CLUTCH SPRINGS

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

Compression Graph Rotation Graph
 

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"

Note: All of the above springs will fit into all of the Arctic Cat driven clutches

Snow West Distribiting Inc.
4291-95 St.
Edmonton, AB. T6E 5R6
Telephone: (780) 436-8888
e-mail:
sales@snowwest.ca

You May Also Visit Us At
www.snowwest.ca
Snow West Distributing Inc.
Copyright 1998-2003 
All rights reserved.
All Pictures Used 
for Reference only.