Mesur-Fil Fluid Couplings
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ALTRA INDUSTRIAL MOTION Mesur-Fil Fluid Couplings An Altra Industrial Motion Company

Altra Industrial Motion Wichita Clutch Wichita Clutch designs and manufactures clutches and brakes that are essential in process equipment. Models are available in a variety of designs and mounting configurations and are used extensively around the world by leading OEMs in metalworking, steel, marine, pulp/paper, material handling, paper converting, mining, and energy. Wichita engineers have extensive application experience and utilize the latest design technologies to provide innovative clutch and brake solutions to precisely meet your most demanding requirements. Altra is a leading...

Mesur-Fil Fluid Couplings

Mesur-Fil Fluid Couplings Formsprag Mesur-Fil® Fluid Couplings deliver reliable smooth power transmission. To consistently deliver, we select only from the highest quality materials. Our manufacturing and product assembly are completed under the most exacting guidelines and established procedures. The result is unquestioned consistent product dependability. Mesur-Fil Fluid Couplings are ideally suited for direct drive applications between electric motors and gear boxes. Mesur-Fil Fluid Couplings are rated for motors up to 2,500 HP. They have earned a reputation for providing smooth, soft...

Mesur-Fil Fluid Couplings Design Avantages Mesur-Fil Fluid Couplings allow motors to start unloaded and to reach operating speed with smooth, controlled acceleration. This makes it ideal for applications with high inertia loads. They are available in either constant or delay fill versions. All Aluminum Housing for Low Rotating Inertia High Temperature Viton Seals Runner Collet Mounted For Ease of Mounting Smaller Sizes One Piece Construction (smaller sizes) Eliminates Leaks. Principle of Operation Benefits Mesur-Fil Fluid Couplings offer several advantages: • • • • • Reduced energy...

Mesur-Fil Fluid Couplings Fluid Requirements Figure 2 reveals a typical NEMA B electric motor torque curve together with the particular operating characteristics of a specific coupling with a designated fill level. With no power supplied, all of the fluid is settled at the bottom of the coupling. Slip rate in this condition is 100% with the input free to turn. With the motor starting and increasing in speed to the breakdown point, torque builds in the coupling. As torque increases, the coupling begins to deliver the load to the motor, eventually bringing the load up to speed (refer to the...

Mesur-Fil Fluid Couplings Mounting Types per Size Mounting Type Mounting Application Basic coupling for custom input & output For use with flexible gear couplings Shaft to shaft applications For stub shaft input/output sizes 7-12.4 Parallel, QD sheave application * Modular design (See page 167)

Mesur-Fil Fluid Couplings HC Sizes 7.0-12.4 Input and Output customer supplied. This is a basic coupling with an input bore for direct mounting on the motor shaft end and a convenient bolt circle for customer-designed output configurations. Double Engagement Gear Tooth Flexible Coupling The Model HCM Fluid Coupling is a complete unit with both input and output flanges. It is intended for installation between two halves of a double engagement gear tooth flexible coupling which is customer supplied. This arrangement provides for a wide range of input and output configurations Standard...

Mesur-Fil Fluid Couplings Selection and Sizing Fill Levels (NEMA B Motors) The Quick Selection Chart (see Figure 8) provides the correct size coupling and fill level for any standard NEMA B motor within the Mesur-Fil range. It also provides the slip rate that can be anticipated at normal operating speed. Having the correct amount of oil in the coupling is extremely critical to ensure safe and proper operation. Figure 9 shows the effects of either too much or too little fluid. With an optimum amount of fluid, the breakdown point of the motor with the 100% slip line of the coupling provide...

Mesur-Fil Fluid Couplings Input speed vs. Horsepower Graph Fluid quantities (fluid ozs.) Fluid Quantities (U.S. Fluid Ounces) Fill Number Fluid Quantities (U.S. Quarts) Fill Number Delayed Fill Fluid Recommendation Chevron: Hydraulic Oil EP 32 Shell: Tellus 32 Esso: NutoH32 Texaco: Rando HD 32 Mobil: DTE 24 Total: Azolla ZS 32 FIRE RESISTANT FLUID Overload Protection Fusible plug In overload conditions, as the slip increases and the oil temperature rises, seals become damaged and begin to leak. In order to avoid this damage, in critical applications, it is advisable to install a fusible...

Mesur-Fil Fluid Couplings Slip Curves Size 7.0 Maximum speed 3,600 RPM (All configurations)

Mesur-Fil Fluid Couplings Slip Curves Maximum speed 3,600 RPM Except HSD-Max. 2,600 RPM

Mesur-Fil Fluid Couplings Slip Curves Maximum speed 2,400 RPM Except HSD-Max. 1,800 RPM

Mesur-Fil Fluid Couplings Slip Curves Maximum speed 2,600 RPM (All configurations) Selection Example: Normal running torque = Pullout torque is obtained at approximately 85% full motor speed and for NEMA B motors, this is approximately 200% normal rated If the pullout torque is unknown, then assume 200% of normal rating occuring at a speed of 1,540 RPM, with full motor speed of Pullout torque = 2 * 22.5 Ib.ft. = 45 Ib.ft. Locate the pullout torque against RPM curve to insure the point is slightly above the drag torque line. Locate the normal torque against RPM curve to insure the point is...

Mesur-Fil Fluid Couplings Modular Design Concept Sizes 7.0, 9.4, 12.4 Configuration Consists of Model HC and input group. The input group is finish bored to fit standard NEMA B motor shafts. The optional output groups available (HCM, HBM) are shown on this page or the HCF output group must be supplied by the customer. Consult engineering for details. The Model HCM Fluid Coupling is a complete unit with both input and output flanges. It is intended for installation between two halves of a double engagement gear tooth flexible coupling which is customer supplied. This coupling is a complete...