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TWIN DISC PRODUCTSFORTHE OILAND GAS INDUSTRIES

1328 RACINE STREET RACINE, WI 53403 PH: 262/638-4000 FX: 262/638-4481

WWW.TWINDISC.COM
http://www.twindisc.com/http://www.twindisc.com/

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TRAN S MIS S ION S YS TE MS

Twin Disc Automatic and Power-Shift

Transmissions are offered with a capacity range

to 2000 hp. Twin Disc offers both straight-through type

models and transfer case type models. Most models of

the straight-through design can be furnished with

either an integral engine-mounted hydraulic torque

converter and transmission or an engine-mounted

hydraulic torque converter and a remotely mounted

transmission. Transfer cases are available for certain

models (not shown). These bolt directly to the rear of

the main transmission housing. Three drive

arrangements are available: 1. Bottom front drive; 2.

Bottom front and rear drives (with disconnect clutch);

and 3. Special designs for top and bottom rear drives.

FOR FURTHER IN FORMATION, REQUEST BULLETIN 330.

H YD RAUL IC P ROD UC TS

Twin Disc manufactures an extensive line of hydraulic

products including single and three-stage hydraulic

torque converters, fluid couplings and the unique Twin

Disc Omega Drives.

Twin Disc Single-Stage and Three-Stage Hydraulic

Torque Converters meet the requirements of diesel or

electric installations from 22 to 2610 kW (30 to 3500

hp) and are offered in a wide range of types, sizes and

capacities with a broad variety of input and output

combinations.

Twin Disc Hydraulic Fluid Couplings are provided

in a variety of input and output combinations for

applications for 7.5 to 1025 kW (10 to 1375 hp).

C LUTC H E S

Twin Disc offers a complete line of

mechanically- and air-actuated clutches.

These clutches are available in diameters from 89 to

1321 mm (3.5 to 52 in) and capacities up to 718 574

Nm (530,000 lbf ft) torque.

P OWE R TAKE - OF F S

Twin Disc Power Take-Offs are suitable for applications

to all industrial-type internal combustion engines

with standard SAE housing dimensions from SAE No. 6

to No. 00. These PTOs contain over-center clutches to

mate with SAE flywheels and range in size from single-

plate 165 to 356 mm (6.5 to 14 in); in double-plate

size from 292 to 457 mm (11.50 to 18 in); and in

triple-plate size from 356 to 533 mm (14 to 21 in).

TWIN D IS C TE C H N OD RIVE

P OWE R TAKE - OF F S

Power take-offs with over-center clutches cover a

range of 15 to 515 kW (20 to 690 hp). The full range

includes 612, 712, 8, 10, 1112 and 14 single-plate,

1112 and 14 double-plate, and 14 and 18 triple

plate models.

The pump drive PTOs offered include models with two

to eight outputs and ratings up to 370 kW (496 hp).

Each model is available in many ratios and can be

supplied with an SAE bell housing, flexible or torsional

couplings, and PTO clutch inputs.

Twin Disc has been a major supplier for the oilfield market since a twin disc clutch was first applied to a

drawworks. Today, Twin Disc products can be found putting horsepower to work in all types of rotary rigs,

mud pumps, drawworks and compressors...throughout the oil and gas industries...wherever there is a potential to

discover and produce oil or gas. Twin Disc products for the oil and gas industries include: Hydraulic Torque

Converters for mud pumps and drawworks; Power-Shift Transmissions for workover, servicing and fracturing rigs;

Disconnecting Fluid Coupling Power Take-Off for mud pumps; Air Clutches for drum hoists and disconnects; Power

Take-Offs for compressor service; and Marine Transmissions for crew and offshore supply boats.

TWIN DISC PRODUCTSFORTHE OILAND GAS INDUSTRIES

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Reducers and overdrive gearboxes feature capacities

of 15 to 300 kW (20 to 402 hp) in a series of ratios

between 0.5:1 and 5:1. They are designed to mount

directly to diesel engines and can be equipped with

input clutches of 612, 8, 10, or 1112 or flywheel

couplings.

Hydraulic pump adaptors allow a hydraulic pump to

be coupled to a diesel engine. The range includesnumerous SAE flanges, special flanges and kits for

pulley-side fitting on air-cooled engines.

HYDRAULIC PRODUCTSTYP E F OUR H YD RAUL IC

TORQ UE C ON VE RTE RS

Designed specifically for the oil and gas industries,

these units transfer power from diesel engines and

electric motors up to 2610 kW (3500 hp). Offered in

four models, these converters provide higher torque

multiplication and utilize prime mover power over

a greater operating range than previous torque

converters used in oilfield applications.BULLETIN 850.

TH RE E - S TAG E H YD RAUL IC

TORQ UE C ON VE RTE RS

Twin Disc offers two sizes of three-stage hydraulic

torque converters with 30 distinct capacities. The

10,000 Series three-stage converter is rated for

applications up to 250 kW (335 hp)@2400 r/min;

the standard duty 11,500 Series to 313 kW (420

hp)@2200 r/min; and the heavy-duty 11,500 Seriesto 433 kW (580 hp)@2200 r/min.

BULLETIN 135.

OP TION AL C OMBIN AT ION S

A variety of output combinations is available with

various three-stage hydraulic torque converters. Types B

and P are chain housings; both types are available with

the 10,000 and the Standard-Duty 11,500 Series. Type

C-1 output is a straight shaft for direct connect to the

driven load; Type C-2 is a flanged shaft for universal

joint connection; Type C-3 is similar to the Type C-1

with extra heavy bearings for side loads. The Heavy-

Duty 11,500 Series converters are offered with the Type

C-3 output, making this series exceptionally adaptable

to all applications required to withstand heavy side-pull

loads. Optional accessories available for three-stage

hydraulic torque converters include freewheels, tailshaft

governor take-offs, rubber block drives, air-to-oil

radiators and a variety of driving rings.

BULLETIN 135.

M O D E L H U D D I S C O N N E C T I N G

F L U I D C O U P L I N G P T O

The Model HUD Disconnecting Fluid Coupling Power

Take-Off meets rigid oilfield standards for heavy-duty

service and high efficiency drive, with the ability

to minimize torsional vibrations, cushion shocks

and accelerate heavy loads smoothly.

The Model HUD is rated at 1025 kW (1375 hp)

@1500 r/min with 6508 Nm (4800 lbf ft) torque

capacity. Optional features include adaptation for

compound drives, air-operated control valve for

remote control operation and a radiator that is rubber

mounted to eliminate vibration problems.

BULLETIN 195.

CLUTCHESANDPOWER TAKE-OFFSM E D I U M M E C H A N I C AL C L U T C H E S

Model CL Clutches are available in sizes 127, 152, 203,

254 and 279 mm (5, 6, 8, 10 and 11 in). Most sizes are

available in 1-, 2- and 3-plate construction. Working

power per 100 r/min ranges from 22 to 277 kW (29 to

371 hp). Working torques range from 176 to 475 Nm

(130 to 350 lbf ft). Torque capacity can be increased

33% by use of heavy-duty driving plates on 203

through 279 mm (8 through 11 in) sizes.

BULLETIN 326.

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IN L IN E P OWE R TAKE - OF F S

SP 3 1 4 I L 1 AN D SP 3 1 8 I L 0

These PTOs are a variation of the standard in the

industry the SP style inline Power Take-Off. New,

innovative arrangement of the two main ball bearings,

coupled with the standard SP clutch, results in a

PTO dedicated to heavy-duty inline applications.

Furthermore, the need for an engine-mounted pilotbearing has been eliminated.

BULLETIN 305, SUPPLEMENT 16.

I B F 3 1 4 I L 1 AN D I B F 3 1 8 I L 1

For heavy-duty, higher torque inline applications,

IBF Series PTOs utilize one greaseable shimless ball

bearing in place of the standard taper bearings/shim

arrangement. Designed with the standard IBF

clutch, they feature ventilated center plates and

drive ring for expedient heat dissipation.


M E D I U M A I R C L U T C H E S

Medium Model PO Air Clutches are available in sizes of

203, 254 and 289 mm (8, 10 and 11.375 in) diameters

and 1-, 2- and 3-plate construction. Power per 100

r/min ranges from 2.75 to 25 kW (3.7 to 33.3 hp). Slip

torque at 896 kPa (130 psi) ranges from 529 to 4718

Nm (390 to 3480 lbf ft). Torque capacity can be

increased 33% by use of heavy-duty plates.

BULLETIN 326.

LARG E A IR C LUTC H E S

Large Model PO Air Clutches are available in sizes 356,

457, 610, 762, 914, 1067 and 132 mm (14, 18, 24, 30,

36, 42 and 52 in) diameters, with most sizes available

in 1-, 2- and 3-plate construction. Power per 100 r/min

ranges from 26.6 to 3762 kW (35.7 to 5046 hp). Slip

torque at 896 kPa (130 psi) ranges from 5084 up to

718 584 Nm (3750 to 530 000 lbf ft).

BULLETIN 326.

R U B B E R B L O C K D R I V E S

Twin Disc offers Rubber Block Drives for internal

combustion engine power transmission applications

that do not require a disconnect clutch. These are

excellent for installations such as pumps, compressors,

and single and double bearing generator drives.

Standard sizes available include a 279, 356, 457 and

two 533 mm (11, 14, 18 and 21 in) units. One 533 mm

(21 in) unit has a single row of blocks; the other 533

mm (21 in) unit contains a double row of blocks. Other

sizes can be purchased in production quantities only.

BULLETIN 313.

S TAN D ARD P OWE R TAKE - OF F S

This easy-to-mount unit consists of a clutch

assembly with shaft and bearings in rigid cast

iron housing. It is designed for manual

operation on all internal combustion engines

with standard SAE flywheel housings from No. 6

to No. 00. Triple-plate 356 to 533 mm (14 to 21 in);

double-plate 292 to 457 mm (11.5 to 18 in); and

single-plate 165 to 356 mm (6.5 to 14 in) are available.

Capacities range up to 1245 kW (1670 hp) and to 11

389 Nm (8400 lbf ft) torque.

BULLETIN 308.

RUBBE R BLOC K D RIVE P OWE R TAKE - OF F S

This special purpose PTO is intended for heavy-dutyapplications not requiring a cut-off clutch. The need

for a flywheel pilot bearing has been eliminated by use

of Twin Discs time-proven rubber block drive. This drive

absorbs the minor misalignment usually found between

the engine flywheel and the PTO connecting members.

According to the load to be transmitted, a single or

double row of blocks can be used.


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