MED S/C CROWN WHEEL & PINION
Description
Our straight-cut crown wheel and pinion sets are CNC machined from steel billets. We have added an extra 12% to the width of the crown wheel over standard, giving additional surface contact with the pinion to spread the tooth load.
The pinions are now made from aerospace-grade S82 steel, which is 20% tougher than EN36B that most other pinions are machined from.
These suit standard differentials, heavy-duty X-pin differential and also the Quaife ATB or MED helical gear ATB.
Available in the following ratios;
- 3.47:1
- 3.75:1
- 3.88:1
- 4.066:1
- 4.2:1
For high performance applications we'd also recommend installing a new set of ARP crown wheel bolts.
Frequently Asked Questions
What's the advantage of an MED straight-cut Mini final drive?
These gears are far stronger than anything produced by the factory, while reducing transmission losses, making a great upgrade for any high performance classic Mini. The pinions gears are machined from aerospace-grade S82 steel, which is 20% tougher than EN36B, while the crownwheel is 12% wider than standard. Transmission losses are reduced by the straight-cut design which eliminates the side-loading of the standard helical-cut gears, freeing up more power to the wheels.
Which ratio final drive do I need?
This is a difficult question to answer for sure, so we have uploaded a comprehensive guide to the various ratios and recommendations on our blog. Please see the following link for more info - https://www.med-engineering.co.uk/blogs/news/which-final-drive-ratio-should-i-run-in-my-classic-mini
Which differentials are these suitable for?
Any standard differential, X-pin, or an LSD that fits to a solid crownwheel. This includes the latest design of Quiafe ATB and MED helical gear differential, part number MED-3610-HD.
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