Ogura Mobile Clutches
25Pages

Mobile Clutches Mobile Clutches

Introduction Introduction Mobile Mobile Clutches Clutches The Ogura Clutch Company was founded in 1938. Since that time, it has grown to be the largest manufacturer of electromagnetic clutches in the world. Ogura has technical and manufacturing representation worldwide. Ogura’s numerous quality awards reflect a desire for continuous improvement which we apply not only to our products; but, also to our personnel. We believe the cornerstone of quality begins with people. This is why our personnel are continually trained on the latest manufacturing techniques and design principles. Our plants...

Products In This Catalog Products In This Catalog There are two basic models of clutches described in this catalog. Mobile Clutches: These are flange mounted, normally a two piece construction. These clutches are typically mounted on pumps. Information contained in this catalog is as accurate as possible; however, we cannot be held responsible for errors and omissions.

Mobile Clutches Mobile Clutches between these two elements. The section below shows how the magnetic field is created when direct current is applied to the field. The magnetic flux is transferred from the field into the rotor and then into the armature. The slots in the rotor and the armature are called banana slots. These slots allow the flux to contact the rotor and the armature in more than just two places. [A normal magnet has only two points (north and south) of attraction.] By making multiple points of flux connection, the torque of a clutch can be increased. Mobile clutches are made...

Reasons For Using Ogura Electromechanical Clutches On Mobile Applications Reduced horsepower consumption from the engine: Since the pump is not required to run all the time, especially over the road, there is less wasted power. Extended pump life: Since the clutch allows the pump to be disengaged, life is greatly extended because the pump is not rotating when it is not being used. Less cost: Since the pump only runs when needed, fuel is saved. Also, the pump does not need to be replaced as often. Simple installation: Since the clutch runs directly off the battery, all that is required is a...

Ogura Mobile Clutch Design Advantages Solid forged rotor: Different coil voltages available: A one piece solid forged rotor means no chance of internal parts separation. Our rotors also have an even wall thickness around the coil which gives optimum flux distribution, maximizing torque. Although 12 volt is the most common, 24 volts can also be made available. Depending upon the quantity, other specialty voltages can be made. High temperature, longer life grease: All models include our special long life grease which has shown a significant improvement in life over other standard high temp...

Typical Mobile Clutch Hydraulic Pump Applications In this type of application, the hydraulic pump and clutch are mounted together. Sometimes the clutch is mounted directly to the pump (there needs to be a special adapter face on the pump) or more commonly, a mounting bracket is used. This bracket has an SAE mounting on one side to hold the pump in place and four holes on the opposite side to hold the field coil of the clutch. The feet of the mounting bracket then mount to a bracket on the engine. In a typical hydraulic pump application, the clutch is mounted on the input shaft of a...

Typical Mobile Clutch Water Pump Applications In this type of application, the water pump and clutch are mounted together. Sometimes the clutch is mounted directly to the pump (there needs to be a special adapter face on the pump) or more commonly, an adapter plate is used. In a typical water pump application, the clutch is mounted on the input shaft of the water pump. Since the clutch has an integral pulley, a belt is used as the input to the clutch. This belt is normally driving directly from a gas or diesel engine. When there is no power to the clutch, the water pump does not engage;...

Typical Mobile Clutch Compressor / Vacuum Pump Applications In this type of application, the compressor/ vacuum pump and clutch are mounted together. Usually the clutch is mounted directly to the pump (there needs to be a special adapter face on the pump); sometimes a mounting bracket or adapter plate is used. In a typical compressor/vacuum pump application, the clutch is mounted on the input shaft of the compressor/vacuum pump. Since the clutch has an integral pulley, a belt is used as the input to the clutch. This belt is normally driving directly from a gas or diesel engine. When there...

Ogura Mobile Clutch Types D D

Ogura Mobile Clutch Types D

Ogura Mobile Clutch Types Mobile Clutch Field Types

(in inches, except as noted) OGURA STATIC CLUTCH FIELD BORE KEY WAY VOLTAGE A B C D E F G WEIGHT PART TORQUE TYPE TYPE SIZE & WATT pulley clutch groove angle groove groove groove to (lbs) NO. (lb. ft.) (V/W) dlamter width width degrees height to gauge groove * Taper is standard automotive 1”: 4” ratio. Gauge line diameter is .841”. Weight is approximate. ** Same as type 9 but has two setscrews (one over the key, one at 90°) and a double ball bearing. *** Tapered bore drawing not shown. Ogura has many other modified standards available. Contact us if the above clutches do...

Clutch Field Types OGURA ClutchTypes T7v\- OGURA Static Clutch Hub Field Bore Keyway Voltage & OD PART Torque Type Type Type ID (in) Watage [OD] (ft-lbs) (in) [V/W]* Overall Alignment Hub Side Flange Side Length [A] Pilot Pilot Field Bolt PCD * 24 volt coils are also available.

This installation assumes the most common form of mounting which is the clutch mounted to the pump. The pump type can be hydraulic, vacuum, water or a compressor. These mobile clutches consist of two assemblies: the field assembly © and the rotor ©/armature © assembly. Installation assumes that the clutch will be mounted to a mounting bracket for a pump or directly to the pump face. Step 1: Attach the field (coil) © to the mounting bracket (customer supplied) or pump face. Use the four 1/4” x 20 cap screws © supplied. Tighten to 8lb. ft. per screw, taking care not to strip the heads. The...