HD Clutches are designed by HD Clutch and Assembled in the USA. We use Machined Billet Pulleys for several reasons. The first, it is easy to damage formed pulley and damage (even a small stone nick) damages the belt with every rotation. With our Billet Pulley design we include a snap ring so the bearing is replaceable, making this clutch rebuildable. Lastly and most importantly, a Billet Pulley does not spread during tough loads and maintains a Constant blade speed. Allow us to explain: When a pulley spreads the belt sinks in slightly and this acts like a smaller pulley and slows the belt speed down. It’s not much but it also wears the belt more. Higher Torque: We add a few more windings to our coils to provide the maximum gripping strength to prevent damaging micro-slipping. Clutches all run very hot; we use a composite material instead of plastic to allow the heat to dissipate much faster. This makes the HD Clutch run much cooler; extending the bearing and clutch life. HD Clutch wrote the Bearing specifications to include Premium C3 Rated Bearings and high temperature rated synthetic grease to combat heat. Less Heat = Extended Life.
- Fits: 355ZB2654 365ZB2552 365ZB2652 550ZB2654 & CZT19480 CZT19481 & HZT21480 HZT21481 & NZM19480 NZM19481 NZM19482 NZM19483 NZM21520 NZM21521 NZM21522 NZM21523 NZM25523 NZM25611 NZM25612 NZM25613 NZM27611 NZM27612 NZM27613 NZMJ23521 NZMJ23522 NZMJ23523 NZMJ25611 NZMJ25612 NZMJ25613 SPE152 SPEL150 SPLH141 SPLH151 SPLH152 SPLH153 SPLH171 SPLH172 SPLH173 SPLH221 SPLH231 SPE1250 SPE131 SPE132 SPE140 SPE150 SPE151
- Fits: 80386 82436 82533 84235 84394 84395 84396 84397 84398 84611 84612 84613 84618 84628 84738 84739 84912 84913 84938 84939 84942 84948 84949 85628 85672 85673 85674 85675 85676 85677 85678 5900748 5900748 5900755 5900768 5900946 5901278 7084612 7084613 7084614 7084615 7084616 7063368 7080386 7082434 7082435 7082436 7082514 7084273 7084274 7084335 7084394 7084395 7084396 7084397 7084398 7084399 7084400 7084401 7084611
- Tough Billet Pulleys: Billet Pulleys Reduce Belt Wear and Maintain Perfect Blade Speed. Our Billet Pulley Design uses a Snap Ring and Allows for Bearing Replacement.
- High Torque Coil: Higher Torque Means this Clutch holds Strong Even in the Toughest Cuts.
- Cool Coil Technology: We use a Proprietary Composite Material Instead of Plastic. This Allows the heat to Escape the Clutch Faster. Less Heat = Longer Life
