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© Copyright Hewland Engineering Limited
TECHNICAL SPECIFICATION
The NMT gearbox is a transaxle unit, designed for mid-engined, rear wheel drive cars. The unit is produced with six
forward gears, reverse, and a powerflow differential.
The gear selection mechanism is sequential, with a separate, mechanically interlocked reverse engagement mechanism.
The drive is taken from the engine via the clutch shaft, which turns input and pinion gears to drive the final transmission
assembly.
Gear changing is effected through non-synchronising face dogs. An extensive range of gear ratios provides a wide
range of gearing requirements. The gear ratios and differential assembly can easily be changed without removing the
gearbox from the vehicle.
Heat treated nickel chrome steel is used to manufacture all gears and shafts. The selector forks are also steel.
Lubrication is by splash or optional internal pump with distribution circuit, and the oil is retained by lipped oil seals.
In general configuration, the NMT-200 is a high tech racing transaxle unit which achieves the maximum effective use of
power, in conjunction with extremely stiff integral rear suspension mountings.
weight
(AL)
128
lbs
(58
Kg)
1st
to 6th gear ratios
from 3.31:1 to .89:1
oil type
SAE 80 or 90
final drive ratio
11/31, 10/31, 9/31
oil quantity
7 pints
(4 litres)
clutch shaft made to customer's requirements
max. torque
320 lbs.ft (430 Nm)
Pinion shaft nut tightening torque = 120 lbs.ft (163 Nm)
Crownwheel bolts = 75 lbs.ft (100 Nm)
Содержание NMT
Страница 15: ...PAGE 15 Copyright Hewland Engineering Limited FIGURE 7 DGC 212 Diff Assembly superseded March 2010...
Страница 16: ...PAGE 16 Copyright Hewland Engineering Limited DGC 212 Diff Assembly March 2010 onwards FIGURE 7a...
Страница 17: ...PAGE 17 Copyright Hewland Engineering Limited FIGURE 8 DGC 212 S Diff Assembly superseded March 2010...
Страница 18: ...PAGE 18 Copyright Hewland Engineering Limited DGC 212 S Diff Assembly March 2010 onwards FIGURE 8a...
Страница 19: ...PAGE 19 Copyright Hewland Engineering Limited TPT 212 Diff Assembly FIGURE 9...
Страница 22: ...PAGE 22 Copyright Hewland Engineering Limited ILLUSTRATED PARTS LIST...
Страница 23: ...PAGE 23 Copyright Hewland Engineering Limited FIGURE 11...
Страница 25: ...PAGE 25 Copyright Hewland Engineering Limited FIGURE 12...
Страница 27: ...PAGE 27 Copyright Hewland Engineering Limited FIGURE 13...
Страница 29: ...PAGE 29 Copyright Hewland Engineering Limited FIGURE 14...
Страница 31: ...PAGE 31 Copyright Hewland Engineering Limited FIGURE 15...
Страница 33: ...PAGE 33 Copyright Hewland Engineering Limited NLT 218 TRIPOD ASSEMBLY FIGURE 16...
Страница 34: ...PAGE 34 Copyright Hewland Engineering Limited Variable Parts...
Страница 35: ...PAGE 35 Copyright Hewland Engineering Limited Gearbox Tooling FIGURE 17...