For technical specifications, dimensions and ordering codes for the below products refer to the DYNAGEAR PT4 Catalogue.


PRECISION SPLINED HUBS - The OD of our splined hubs are machined true to spline axis after broaching. All items are supplied in soft condition and may be induction or case hardened.

SPLINED COUPLINGS - Are intended for joining two splined shafts together and the outside diameter of the coupling cannot be guaranteed to be true to the axis of the spline.

STANDARD SPLINED SHAFTING - Splined shafting is hobbed for the full listed length. In some instances undercut chucking registers may be present at one end. A centre is provided at one end.

SPLINED FLOATING NIB SHAFTS - Long spline area for telescoping drives or transfer drive applications. Keyed shaft end for drive attachment. Use with our standard splined hubs or splined couplings.

SPLINED STUBWELDS - for SAE hydraulic applications - Splined end fully hardened. Buttress end is left as soft as possible for later machining and welding.

PTO PUMP SHAFT ADAPTOR - for water pumps or hydraulic applications.

SPLINED FLOATING NIB SHAFTS - (not pictured) Long spline area for telescoping drives or transfer drive applications. Keyed shaft end for drive attachment. Use with standard splined hubs or splined couplings.
DYNAGEAR PT4 Catalogue
ROUND BORE WELD-IN HUBS - For connecting Hydraulic Orbit Motors to fabricated Winch Drums and Mixer Paddles, Electric Motor Sprocket Hubs and Machine Bosses.
DYNAGEAR PT4 Catalogue
ROUND BORE MUFF COUPLINGS - Used for joining of shafts on pumps, electric motors, special machines or any application where a keyed round bore sleeve is required.
DYNAGEAR PT4 Catalogue
SPLINED CLAMPLOCK TYPE YOKES - Specially developed for positive connection of driveline to splined hydraulic pump shafts. CLAMPLOCK yokes are available to fit SAE or metric hydraulic pumps or motor spline types found on mobile equipment. The double bolt split clamp design locks solid on to splines giving long trouble free life. CLAMPLOCK yokes are manufactured from steel to a high degree of precision, accuracy and strength.

ROUND BORE KEYED SHAFT COMPANION FLANGES - All steel construction featuring keyway and 2 set screws. Types shown are standard stock lines for 1310, 1350 and 1410 drivelines. Four hole companion flange fits Spicer type flange yokes. We can produce special sizes to order if quantities are sufficient for production requirements.

SPLINED CLAMPLOCK TYPE UNIVERSAL JOINT COMPANION FLANGES - Positive locking and positioning of drivelines to splined shafts on hydraulic pumps for 1310, 1350 1410 1480 and 1550 driveline PTO drives on mobile equipment such as Concrete Transit Mixers, Cranes, Harvesters, Dump Trucks, Tractors etc. Four hole companion flange fits Spicer type flange yokes. May be manufactured to fit other flange yokes if required. Available to suit most common hydraulic pumps. Also available with agricultural splines.
DYNAGEAR PT4 Catalogue
A STANDARD OFF THE SHELF SHAFT COUPLING SYSTEM DEVELOPED SPECIALLY FOR HEAVY DUTY FLUID POWER APPLICATIONS

SPLINED SHAFT CONNECTIONS.

The FLEXILOCK range includes most of the splined shaft connections currently utilized on hydraulic pumps and motors including imperial and metric sizes. All splined coupling hubs feature our popular CLAMPLOCK lateral or axial positive locking mechanisms which secure the coupling hub solidly on to the pump shaft and eliminate the spline wear associated with unlocked spline connections.

ROUND BORE KEYED SHAFT CONNECTIONS.
Most standard bore sizes available in imperial and metric sizes to fit standard hydraulic pumps and motors and IEC electric motor shaft standards.
DYNAGEAR PT4 Catalogue
SPLINED CLAMPLOCK TYPE HYDRAULIC PUMP DRIVE KITS FOR DIESEL ENGINES

LARGEST RANGE AVAILABLE IN THE WORLD TODAY.

With over 300 combinations we offer by far the largest standard range of direct hydraulic pump drive kits for diesel engines in the world today. The application versatility of our system is unique, covering SAE & DIN configurations.

A COMPLETE ENGINEERED PRODUCT.
Using a FLEXILOCK kit permits the customer to make a reliable pre-engineered connection between the engine and hydraulic pump without the necessity of designing a special adaptation.

WIDE POWER RANGE, UP TO 300 HP.
63 Series with capacity to 47 HP at 2500 RPM.
101 Series with capacity to 142 HP at 2500 RPM.
127 Series with capacity to 209 HP at 2200 RPM.
195 Series with capacity to 300 HP at 2200 RPM.

WIDE RANGE OF ENGINE HOUSING ADAPTORS.
We have been manufacturing engine housing adaptors since 1977 and can provide a wide range of high quality adaptors from stock. Housing adaptors have UNC tapped holes for pump mounting.

LONG TROUBLE FREE LIFE.
Our special polymer flywheel driveplate elements are formulated for optimum elasticity at engine operating temperature and will continue to absorb engine torsional vibration over a very long life cycle. Unlike rubber drive connections, our elements do not harden and fret with continued engine heat exposure, but remain effective over long periods.

STEEL DRIVEPLATE.
Outer driveplate is steel with special polymer element riveted in place. The use of a steel drive plate eliminates dimensional instability often experienced with the full plastic style drives.

SUPERIOR SPLINE LOCKING SECURITY.
The CL and SL type CLAMPLOCK spline locking mechanisms in all our steel coupling hubs provide the highest level of spline locking security currently available from any source. Pump spline shaft wear or fretting is eliminated by simply tightening the screws provided. Material is high carbon steel not sintered metal as used by some competitors.
DYNAGEAR PT4 Catalogue
FLEXILOCK LIVE P.T.O. DRIVE KITS FOR DIESEL ENGINES

APPLICATIONS - Pulley drives, Chain drives, other applications where a male output shaft from a diesel engine is required.

FEATURES - Taper roller bearings for high capacity and long life, spheroidal graphite cast iron housing. Flexilock drive for installation ease, reduces torsional vibration transmission and misalignment capacity. Protects engine bearings and crank from side load failures.

Kit includes - Flexilock flywheel driveplate, Flexilock engine housing adaptor plate, bearing supported stub shaft.
DYNAGEAR PT4 Catalogue
MODEL LDA - OVERHUNG LOAD ADAPTORS FOR HYDRAULIC MOTORS.
This is a low cost model with a fixed SAE "A" motor adaptor and 6 shaft size options. Bearings are sealed Ball Bearing type greased for life. Shaft options include most of those required for high speed hydraulic motors. Also included is the 1" shaft option for Charlyn, Ross TRW and Danfoss 0rbit motors and 25 mm shaft to suit the SAM HYDRAULIK BG...N orbit motor.
DYNAGEAR PT4 Catalogue
MODEL HDC - OVERHUNG LOAD ADAPTORS FOR HYDRAULIC MOTORS.
Now with ductile iron housing. This model has removable SAE hydraulic motor adaptors and may be supplied with SAE "A", SAE "B" or SAE "C" motor interfacing and 10 shaft size options accommodating almost any SAE Hydraulic motor up to SAE "C". Bearings are Taper Roller type and units are usually supplied factory oil filled. Grease filling required for vertical mount. The HDC model may also be face mounted via a set of front mount holes and pilot.
DYNAGEAR PT4 Catalogue
MODEL HH DOG CLUTCH FOR HYDRAULIC PUMPS AND MOTORS

APPLICATIONS - Direct front crankshaft drive of hydraulic pumps from engine on cranes, transit mixers, special vehicles, fishing boats etc where pump requires disengaging when not in use. Use anticlockwise version for above applications.
Drives for hydraulic pumps from rear of engine or from flywheel PTO when engine has separate power delivery requirement where hydraulic pump needs disengaging when not in use. Use clockwise version for direct drive off rear of engine.

FEATURES - The unit may be supplied to suit SAE 'A', SAE 'B' or SAE 'C' hydraulic pumps or motors or as a shaft to shaft version. The standard manual version shown, features automatic spring loaded engagement on start-up and positive gate control in either the engaged or disengaged positions. The unit may be easily adapted for electric solenoid or cable control. The clutch casing is cast iron, bearings are deep groove ball type. The drive dogs are specially shaped to provide fast engagement and resistance to jump out even with reversing loads. The dogs are made from hardened high strength alloy steel. The unique actuating mechanism is designed for long trouble free life.

CAPACITY - Maximum continuous input capacity is 0.053 HP per rev with a continuous torque rating of 282 lbf ft Max brief peak torque is 413 lbs ft. Side loading is limited. The unit is shipped dry, and must be filled before use. Fill to oil level plug depth with ATF automatic transmission fluid (approx.10.5 fl oz). Ensure gasket or sealant is used between hydraulic. pump/motor and clutch as spline is open to lubricant.
DYNAGEAR PT4 Catalogue



HYDRAULIC PUMP DRIVES FOR AGRICULTURAL TRACTOR P.T.O.

CAST IRON CASES
- Unlike our competitors, we utilise cast iron gear case construction. Cast iron expansion at the high temperatures encountered with this application is near equal to the expansion of the bearings and the outer bearing rings are retained in the case. Aluminium cases with high heat expansion often fail due to the outer bearing ring spinning and displacing particles of aluminium which destroy the bearings.

MODEL T33 - These models embody over 20 years of engineering experience with PTO pump drives. They were developed for use as directly driven hydraulic pump speed increasers for 540 or 1000 RPM tractor PTO shafts. Models for 540 RPM PTO's are provided with a 1 3/8" 6T spline hollow shaft and for 1000 RPM PTO's, a 1 3/8" 21T spline hollow shaft. Shafts are splined internally for full length for through drive. Normal practice is to utilise a torque arm to restrain the drive from rotation.
Maximum power is 50 horsepower with the 1:3.31 ratio models at 540 RPM input and 65 Horsepower in the 2.04 ratio models at 1000 RPM input. The T33 is available to accept most SAE "A", SAE "B" or SAE "C" hydraulic pumps. Pump adaptors on the T33 may be changed in the field.

MODEL T33I - This model was developed for use as an implement mounted hydraulic pump speed increaser for 1000 or 540 rpm tractor PTOs where thrust loads from PTO shafts are encountered. Tapped mounting holes are provided or a factory fitted base mounting bracket can be supplied.
Maximum power is 50 horsepower with the 1:3.31 ratio models at 540 rpm input and 65 Horsepower with the 1:2.04 ratio models at 1000 rpm input. The T33I male shaft input model is available to accept most SAE "A", SAE "B" or SAE "C" hydraulic pumps. Pump adaptors on the T33I may be changed in the field. The T33I male shaft input & output model is supplied with a 1 1/2" x 3/8" keyed output shaft.
DYNAGEAR PT4 Catalogue