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Bell Housing PTO Clutches

Logan Air / Fluid actuated Bell Housing PTO clutches are self- adjusting and designed to mount directly to a diesel or gasoline engine’s flywheel.

The friction disc packs optimize dry operation and actuation is accomplished through a stationary cylinder-piston arrangement or through internal shaft and clutch passages.

The clutch is bored and keyseated for shaft mounting. Torque is then transferred from the disc pack to a geared drive ring that is attached to the engine’s flywheel.

Bell Housing PTO

Functionality:

Pressurizing the cylinder forces the piston to clamp and lock the friction and steel separator discs. When pressure is removed, release springs lift the friction and steel discs maintain a running clearance when disengaged. 

 

Push Button Actuation - Eliminates Mechanical Linkages:

Self-adjusting piston travel compensates for any disc wear, eliminating the need for mechanical adjustment (i.e. levers, linkages, and yokes). And the amount of hydraulic or pneumatic pressure applied regulates the amount of torque transmitted through the clutch. Push-button, remote activation from a control panel, marine wheelhouse or cab is now possible.

 

Specifications:

Standard Logan Bell Housing PTO’s are available in No. 00 to No. 7 size SAE Bells with input torque ratings from 159 lb. ft. (216Nm) to over 7,473 lb. ft. (10133 Nm). Logan uses a 1.4 factor of safety in our torque specifications.

Air / Fluid operating pressures range from 100 (6,9 bar) to 200 psi (13,8 bar) for Generation I and Generation III models; and 320 psi. (23 bar) for Generation II Models Operating speeds range from 1 to 3,000 RPM.

Modified Standards:

Higher horsepower, torque ranges, speeds, actuation pressures, and design configurations are available to meet customer-specific design requirements.

gen3-1384993641

Generation III: For in-line or side-load applications

Advantages:
  • Air or fluid actuated
  • No pilot bearing
  • Self-adjusting disc pack
  • Ideal for in-line and heavy-duty side load applications
  • Release springs in disc pack maintains running clearance during disengagement
  • Remote actuation
Bell Housing PTO7a-1517915501

Generation II: For heavy-duty, side-load applications

Advantages:
  • Air or fluid actuated
  • No pilot bearing
  • Self-adjusting disc pack
  • Increased torque via higher actuation pressure
  • Ideal for heavier-duty side-load applications
  • Release springs in disc pack maintain running clearance during disengagement
  • Remote actuation
gen1-1402320414

Generation I: For in-line or side load applications

Advantages:
  • Air or fluid actuated
  • Self-adjusting disc pack
  • High torque, small envelope
  • Remote actuation
  • Field retrofits w/existing mechanical PTO’s
generationIII-1436975755

Generation II and III: For applications requiring an integral torsional coupling

Advantages:
  • Air or fluid actuated
  • No pilot bearing
  • Self-adjusting disc pack
  • Ideal for in-line and side-load applications
  • Release springs in disc pack, maintain running clearance during disengagement
  • Remote actuation
  • Integral torsional coupling
singleanddouble-1436555299

Bell Housing PTO’s for Single and Double Pump Drives

Logan PTO clutches are designed to retrofit within existing bell housings of popular pump drive manufacturers such as:

  • Funk
  • Twin Disc®
  • Durst
  • Gear Products
  • Marco

Complete Logan PTO clutches are available as original equipment or as a field retrofit.

Bell Housing PTO10-1453765666

Logan Vs. Mechanical

Logan Features:

  • Air or fluid actuated
  • Self-adjusting disc pack
  • High torque, small envelope
  • Available with or without pilot bearings
  • Remote actuation
  • Field retrofits w/existing mechanical PTO’s

Advantages:

Logan clutch engagement is smooth and positive, and eliminates mechanical linkages, hand levers and yokes. Fewer moving parts increases productivity and decreases downtime.

Contact Logan Clutch