XL6

Severe Duty 6-Speed Dog-change Gearbox

Description

The XL6 takes the gear-set from our X12 transaxle and packages it into an in-line gearbox application witch can be oriented with the layshaft above or below the input. This allows for use in a wide range of applications with very high torque demands.

Key Design Objectives:

To be a highly adaptive, very high torque capacity in-line gearbox, with a large emphasis on Off-Road Racing and being able to absorb the associated shock-loads.
Larger ratio spread than any previous Holinger product.
It has been designed from the outset with paddle shift in mind, featuring internal direct Pneumatic actuation, providing fast, highly positive and consistent gear-shifts. Of course a traditional Gear Lever can also be used where required to comply with regulations. Dual Shift option also available.

Features

The gearbox is fitted with 6 forward gears and a reverse gear set. All spur gears are profile ground for increased efficiency and durability. All gears have special modifications to their involute curves for optimal performance under extreme tooth loading.
Torque rating for 24 hour endurance events is 1100Nm (810 ft.lb). This is not a failure rating but an indication of life expectancy in long events with 100% reliability.
All gears have an extensive range of ratios available.
The internal lubrication system consists of a paper element filter, an oil pump with provision for an external cooler, a spray bar to feed cooled oil directly onto the gears and through-shaft lubrication to all needle roller bearings.
Input shaft can be customised to suit individual requirements.
Output is available with bolt up universal joint.
Paddle-Shift version as standard featuring internal direct Pneumatic actuation, providing fast, highly positive and consistent gear-shifts. A traditional Gear-Lever can also be used where required to comply with regulations.
A Dual Shift option is also available: Gear lever and cable are automatically disconnected when using paddles. No danger of being hit with gear lever and additional inertia of these components doesn't compromise shift quality.
Clutch or torque converter bellhousings available.
A contactless gear position sensor is supplied for interfacing with an electronic dash display.
An optional stand-alone gear indicator display is available for cars not fitted with an electronic dash.
A temperature sensor can be installed on the gearbox (M12x1.5).
A speed sensor can be installed on the output shaft.
Case hardened VAR Nickel Chrome steel is used for all gears and shafts.
The selector forks are manufactured from high tensile, nitrided steel.
Housings are sandcast Aluminium alloy, heat treated to T6 specifications.
O-ring seals are used on all joint faces.
Gearbox weight starts at 65 kg.