Clutches and gearboxes
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UKAS MANAGEMENT SYSTEMS Quality Products for Mechanical & Fluid Power

an excellence in engineering www.jbj.co.uk/mechanical-power-conversion.html Mechanical Power Take-Off Units Standard Easy-to-mount unit features clutch assembly with shaft and bearings in rigid cast iron housing. Designed for manual operation on all internal combustion engines with standard SAE flywheel housing from No. 6 to No. 00. • Single-plate 6.5 to 14 SAE • Double-plate 11.5 to 18 SAE • Triple-plate 14 to 21 SAE • Capacities to 1454 kW (1950 hp), torque to 11,389 Nm (8400 lb-ft) Limited Attendance To meet the oil field pumping requirement for a power take-off that can operate...

Mechanical Power Take-Off Units

Clutches & Gearboxes Description These units are free standing clutches of the multiple plate, oil bath type. These clutches are particularly suited to arduous applications and are capable of withstanding high radial loads. The PFI 60 and PFI 120 are manufactured with input and output shafts. The PFI 60P and PFI120P are intended for hydraulic pump direct connection with the same pump adaptor flanges and couplings as on AM 230 - 450 pump drives which means the possibility to fit a large number of pumps with standard components. PFI 60 Power curve P.T.O. selection is to be made by multiplying...

PFI 60 and PFI 60P - multiple disc clutch in oil bath hydraulically operated with 24V DC solenoid selector for remote control. Cylindrical input shaft; female splined shaft for hydraulic pump connection. SAE 3-2-1 housing or free standing mounting possibilities. Either right or left hand input rotation (to be specified with order). Oil must be cooled by an external heat exchanger.

PFI 120 and PFI 120P - multiple disc clutch in oil bath hydraulically operated with 12V or 24V DC solenoid selector for remote control. Cylindrical input shaft; female splined shaft for hydraulic pump connection. SAE 3-2-1 housing or free standing mounting possibilities. Either right or left hand input rotation (to be specified with order). Oil must be cooled by an external heat exchanger.

Description Type BD clutches have been designed to mount onto any engine with flywheel and bellhousing conforming to SAE dimensions. These clutches consist of an overcentre clutch assembly mounted onto a tapered shaft carried on two bearings. The pilot bearing is housed in the engine flywheel and the outer bearing serves to support the output shaft and is capable of withstanding radial loads as detailed within this catalogue. For exceptionally high radial loads models BD290/150R, BD2200R and BD3300R are available with special heavy duty bearings. Power is transmitted by clutch plates...

Clutches & Gearboxes BD Engine Mounted Clutches Type *Maximum torque figures do not include service factor. ** R = PTO to accept high radial load. The formula shown below will enable the radial loading to be calculated. The figure should be compared with the maximum permissible radial load shown against distance (x) in table (A). kW = Input power (kW) n = output shaft speed (rpm) D = pitch diameter of pulley (m) f = load factor 1.0 for chain or gear drive 2.5 for V belts 3.5forlatbelts f = 2 only for reciprocating compressor or severe shock drives. The resulting F value is to be lower or...

Dimensions N.B. BD clutch units are available with hydraulic pump adaptor in place of output shaft - See page 10 illustration.

Some special versions with reduced overall length may be offered. Details available from jbj technical department, telephone: 01737 767493 or email: info@jbj.co.uk

Technical Data Type

Clutches & Gearboxes BDP & BDSP Clutches BD and BDS clutches are available with hydraulic pump adaptor in place of output shaft on models BDP and BDSP. The pump adaptors take the same form as offered on the type AM multiple pump drive units, but the selection of adaptors may be restricted according to the clutch and pump combination planned. Further details are available upon request. Technical Data Type All other data as per standard BD and BDS units. Many other types of pump may be accommodated. Details available from jbj technical department, telephone: 01737 767493 or email:...

Clutches & Gearboxes RM Speed Increasing/Reducing Gearboxes Dimensions RM gearboxes consist of a 2-piece cast iron casing* with helical teeth, case hardened gears and shafts. Reverse rotation units have a primary gear on the input shaft driving directly onto the secondary gear powering the output shaft. Same rotation versions have an idler gear between primary and secondary gears. There are 3 basic types of RM gearbox; RM-GR models are for close coupling to diesel prime movers and have a choice of SAE housing and rigid or flexible couplings; RM-BD models are similar to RM-GR but are fitted...

Oil capacity will vary slightly according to ratio, and will increase if RM unit is fitted with cooling system. Some special ratios are available upon request.

Oil capacity will vary slightly according to ratio and wil increase if RM unit is fitted with cooling system. Some special ratios are available upon request. For heavy duty applications types RM 120 and RM 150 gearboxes are prepared to accept an oil circulation pump which permits the use of a heat exchanger to keep the oil temperature at an acceptable level. Use SAE 90 lubricant in these speed reduction and multiplier gearboxes. The formula shown in the illustration will enable the radial loading to be calculated. The figure should be compared with the maximum allowable radial loads shown...

RM-BD, RM-GE, RM-GR Dimensions Type The dimensions shown apply to RM units with either type BD overcentre clutch, flexible or rigid coupling. RM units with output shaft in 9 o'clock position (facing shaft) are available upon request. Some other RM+BD combinations are offered. Certain RM models may be obtained with hydraulic pump adaptor in place of output shaft. For details contact jbj technical department, telephone: 01737 767493 or email: info@jbj.co.uk