Bell Housing PTO's

Flywheel Mounted
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.


 

  • LC 314 Generation II Hydraulic Actuation Layout with Cummins QSB 6.7 Engine
  • Scania D13 Series 650 HP (478 kW) pictured with Logan LC-314 Bell PTO 2702 lb. ft. (3664 Nm) for main propulsion and Logan front PTO 1000 series clutch,1590 lb. ft. (2155NM) to drive an auxiliary pump
  • Logan Front of Engine PTO for Scania D13 Engine
  • Standard LC-311 with Pilot Bearing, and Over Shaft Actuation For In-Line or Side Load Applications
  • Direct Drive PTO’s – Flywheel Mounted with Integral Torsional Coupling
  • LC-318 Generation III without Pilot Bearing, and Over Shaft Actuation for In-Line or Side Load Applications
  • LC-318 Generation III without Pilot Bearing, and Over Shaft Actuation for In-Line or Side Load Applications
  • Logan Bell Housing PTO Generation II – Through Shaft Actuation
  • Logan Bell Housing PTO Generation I – Over Shaft Actuation
  • Logan Bell Housing PTO Generation III – Over Shaft Actuation
  • Logan Vs. Mechanical
  • Gear Boxes. Logan LC-211 Generation III Bell Housing PTO Attached to Gearbox / Drop Box
  • Logan Bell Housing PTO Generation II Design for Heavy Duty Side Load Applications, with Through Shaft Activation
  • Logan LC-314 Bell Housing PTO for Trailor Mounted Waterjet.
  • Logan LC-311 Bell Housing PTO for Trailor Mounted Waterjet.
  • Logan LC-211 with Starter Motor Integral to the Bell Housing Casting
  • Compact Design Makes it Easy to Switch from Diesel to Hybrid Electric Propulsion
  • LC-311 PTO Transmits 1,446 lb. ft. (1960 Nm) @ 200 psi (13,9 bar), Pictrued with Brush Chipper
  • Logan 700-2 FlexaDrive with  Logan 1150 Series Clutch
  • Cleveland Hopkins Airport Snowblowers

Applications:

  • Industrial
  • Marine
  • Agriculture
  • Off-Road
  • Mobile Equipment
  • Hybrid Vehicles

Advantages:

  • Air or fluid actuated for remote activation
  • Self-adjusting disc pack – flow control engagement
  • Eliminates mechanical linkages, hand levers, and yokes
  • Available with or without pilot bearing
  • Heavy-duty side load models available
  • Modified standards available

Logan Clutch Bell Housing - U.S. Patent No. 6,874,610, SP214. LC214

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.


 

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

Generation III Bell Housing PTO

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

 

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

Advantages:

Generation II Bell Housing PTO

  • 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

 

Generation I: For in-line or side load applications

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

 

 

 

 


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

Advantages:Generation III - Over Shaft Actuation
  • 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

 

 


Bell Housing PTO’s for Single and Double Pump Drives

Funk 2800 series, single direct drive pump SAE#3 housing and B pad (retrofitted with Logan LC-110 hydraulic clutch)

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.

 


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.

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