Bell Housing Power Take-Off Clutches -

Bell Housing Series Description:

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

The friction disc packs are designed for dry operation. Actuation is accomplished through either a stationary cylinder-piston arrangement, or through internal shaft and clutch passages.

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

Logan Clutches – How They Work

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

Push Button Actuation - Eliminates Mechanical Linkages  

Self-adjustingTM   piston travel compensates for any disc wear, eliminating the need for mechanical adjustment (i.e. levers, linkages, and yokes). 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.

Standard 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’s  specific design requirements.

 

  • 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
  • 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
  • Direct Drive PTO "Flywheel Mounted with Integral Torsional Coupling
  • 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
  • Cleveland Hopkins Airport Snowblowers
  • Logan 700-2 FlexaDrive with  Logan 1150 Series Clutch

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
Generation I  Over Shaft Actuation with Pilot Bearing

Generation I Over Shaft Actuation with Pilot Bearing

Logan  Bell Housing PTO’s are self-adjusting, and over-shaft actuated, using air or hydraulics. Gen I Bell Housing PTO’s utilize a pilot bearing and can retrofit or fit within the same envelope space as most mechanical, over-center PTO clutches. Logan clutch engagement is smooth and positive, eliminating mechanical hand levers, yokes, and sleeves. Since Logan PTO’s are fluid or air actuated, remote engagement from a bridge, wheelhouse or engine control panel is now possible. 

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Generation III - Over Shaft Actuation without Pilot Bearing

Generation III - Over Shaft Actuation without Pilot Bearing

Logan  Generation III Bell Housing PTO’s do not require a pilot bearing. Clutches are self-adjusting, and over-shaft actuated, using air or hydraulics. Logan clutch engagement is smooth and positive, eliminating mechanical hand levers, yokes, and sleeves. Since Logan PTO’s are fluid or air actuated, remote engagement from a bridge, wheelhouse or engine control panel is now possible. 

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Generation II - Through Shaft Actuation Without Pilot Bearing

Generation II - Through Shaft Actuation Without Pilot Bearing

Logan  Generation II Bell Housing PTO’s do not require a pilot bearing. Clutches are self-adjusting, and through-shaft actuated, using air or hydraulics. Logan clutch engagement is smooth and positive, eliminating mechanical hand levers, yokes, and sleeves. Since Logan PTO’s are fluid or air actuated, remote engagement from a bridge, wheelhouse or engine control panel is now possible. 

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HPU Hydraulic Power Units – Manifolds and Start-up kits

HPU Hydraulic Power Units – Manifolds and Start-up kits

Logan offers Hydraulic Power Units, Manifolds and Start-up kits, which are designed to simplify Logan Clutch installations and to provide reliable engagement of your Logan Clutch.  

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Marine Applications

Marine Applications

Logan PTO’s are suitable for tugboats, workboats, fishing boats, jet boats, patrol boats and pleasure craft.  Activation is simplified since Logan PTO’s are fluid or air actuated, enabling remote engagement from the bridge or wheelhouse – and are self-adjusting™,  requiring no mechanical adjustment.

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Tree and Brush Chippers Recycling

Tree and Brush Chippers Recycling

Frequent mechanical PTO clutch overhauls can take a chipper out of service for several hours or an entire day, resulting in lost revenue and increased operating expenses. Logan Bell Housing PTO’s are  hydraulically actuated, and self-adjusting, eliminating the need for mechanical levers, pins, yokes and other high wear items on your chipper. No Levers!

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Clutches for Water-Jetting and Water blasting Equipment

Clutches for Water-Jetting and Water blasting Equipment

Mechanical PTO clutch failures and overhauls can take a water blasting machine  out of service for several hours or an entire week resulting in lost revenue and increased operating expenses. Most water blasting units are in rental fleets, which compounds the problem of uptime and downtime from failed mechanical clutches. 

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Snow Blowers

Snow Blowers

Clearing airport runways is a top priority during winter storms. This heavy-duty snow blower (pictured right), powered by a CAT C-18 Engine, and a Logan LC-314 Bell Housing PTO as part of the blower system – can cast 5,000 tons (4.535e6 Kg.) of snow per hour, over 200 ft. (60.96 meters). That’s approximately 1.4 tons (1,270 kg) per second.

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Clutches for Pumping Stations

Clutches for Pumping Stations

Logan PTO’s are used as a connect-disconnect between diesel engines and water pumps used in pumping stations. Activation is simplified since Logan PTO’s are fluid or air actuated, enabling remote engagement. Since Logan Clutches are self-adjusting™,  no mechanical  clutch adjustment is required. 

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Clutches for Marking Removal Trucks

Clutches for Marking Removal Trucks

Logan PTO’s are used as a connect-disconnect between diesel engines and bare shaft and centrifugal pumps. Activation is simplified since Logan PTO’s are fluid or air actuated, enabling remote engagement. Since Logan Clutches are  self-adjusting™,  no mechanical  clutch adjustment is required. 

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