EXCELLENT BALANCE OF SMOOTHNESS,
POWER AND DURABILITY BY SPECIAL GEAR SYSTEMASSURES THE ULTIMATE IN PERFORMANCETSUDAKOMA speciallydesigned double-lead worm
gears with full-depth teeth
T h e s e t t in g o f t h e l e a damount on this gear system isdifferent depending on therotating direction of the worm
wheel and the worm spindle.
By moving the worm spindle
axially, the tooth engagement
can be changed successively.
As the backlash between theworm wheel and the worm
spindle can be adjusted while
keeping them in their proper
positions, the ideal toothengagement is maintained.

Gear system
Materials

Worm spindle holder
Body

Worm wheel

Worm spindle: Case-hardened alloy steel
Worm wheel: Special high-tensile brass equal instrength to a steel alloy

Worm spindle

Torque transfer
efficiency

To lessen thebacklash
To increase
tooth thickness

Tooth profile

To decrease
tooth thickness

The adoption of full-depth gear teeth, instead ofstandard teeth, results in higher strength equal tothat of a gear of a size larger in module.

Conventional typeLarger wormwheel

The combination of iron and brass produces less friction.
A more effective transfer of the motor torque is achieved
compared with other combinations of materials.

The worm wheel with a large pitch diameter creates alarge engagement area and less pressure on thecontact surface, resulting in high durability against wear
compared with conventional gear system.

Conventional type

TSUDAKOMATSUDAKOMA5

NC Rotary Tables
Basic models

New standard for the ultimate-seriesseries in power and speed

RBSRBH■ High Speed

The specially designed double-lead worm gear system with fulldepth teeth of increased torque transfer efficiency minimizes thespeed reduction ratio, improving the indexing speed.
The machining cycle time is reduced.

■ Strong Clamp Torque（RWA-series）

The newly developed clamp mechanism using pneumatic pressure
realizes powerful clamping.
The cutting feed speed is increased.
Responsivity is also increased.

Multi-Spindle

RBM
TBS

RWE/RWA
RN

RWH
RWA-B
RNCV-B
RWB
RWB-K
RNCK

Big bore models-series
seriessFlagship models of single-axis NC table

RCB■ NNewly developed strong hydraulic clamping system

RCV

New clamping system enables 25% stronger clamping
torque than previous model. It realizes stable machining
at a distance from rotary center.

■ Strong strength of worm gears

Strength of worm gears improves 70% to 130% higher
than previous model. It realizes 1 size stronger
strength than previous model, which provides
downsizing of the model.

■ Indexing accuracy 14 sec.(the sum) guaranteed

Our high quality control enable us to take an anotherstep forward to elevate the indexing accuracy.

RCHRNC

Multi-Spindle

RWM

TWA/TNTWB
TTNCMulti-Spindle

TWMRDS
RTV
RTTTDSTDB

NC Controllers

NC Tilting Rotary Tables
Basic tilting models-series

Best partner for
five-axis machining

Accessories

Options
TechnicalInformation■ High Speed
The specially designed double-lead worm gear system with fulldepth teeth of increased torque transfer efficiency minimizes thespeed reduction ratio, improving the indexing speed.
The machining cycle time is reduced.

■ Strong Clamp Torque

The newly developed clamp mechanism using pneumatic pressure
realizes powerful clamping.
It is rigid enough for machining even at a position far from the tilting axis.

■ Variety of Options

In addition to the automatic work mounting and dismounting arrangements
by a pull-stud device as well as pneumatic or hydraulic rotary joint, highprecision speciﬁcations using a scale is also available.

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