Grid catalog
19Pages

■■ Vertical Cover Style ■■ Horizontal Cover Style ■■ Half Spacer Style ■■ Full Spacer Style

Safety Warning When using Lovejoy products, you must follow these instructions and take the following precautions. Failure to do so may cause the power transmission product to break and parts to be thrown with sufficient force to cause severe injury or death. Refer to this Lovejoy Catalog for proper selection, sizing, horsepower, torque range, and speed range of power transmission products, including elastomeric elements for couplings. Follow the installation instructions included with the product, and in the individual product catalogs for proper installation of power transmission...

Lovejoy’s grid style coupling design has demonstrated its ability to dampen vibration by as much as 30% and can cushion shock loads that could cause damage to both the driving and driven equipment. The tapered grid spring design absorbs impact energy by spreading the energy out over the full length of the grid spring thus reducing the magnitude of the torque spikes. Horizontal Split Cover Design ■■Ideal for limited space ■■Allows easy access to the grid spring Lovejoy is pleased to be able to provide quality grid couplings covering a large number of industry standard sizes and lengths. The...

Selection Process ■■Shaft and keyway sizes and the type of fit for driver and driven equipment (clearance or interference)** Selection Torque = Application Torque x Service Factor ■■Description of the driven equipment Application Torque (in-lbs) = ( horse power x 63025 ) RPM ■■Description of motor or engine, the horse power (or KW), and RPM at slowest coupling speed while under load Formulas Used To Calculate Torque: The following information is necessary when making a Grid coupling selection: Grid Coupling Selection Process High Peak Loads and Brake Applications For applications where high...

Selection Process Lovejoy Coupling Solutions Selection Example Application Description A company would like to use a grid coupling to connect a standard AC electric motor to a rotary lobe compressor. The electric motor is rated for 60 horsepower running at 1,760 RPM. The shaft size on the electric motor (driver) is 2-1/8 inches with a standard 1/2” square key. The shaft size on the compressor (driven) is 48 millimeters with a standard 14mm key. Both the motor and compressor shaft are 3 inches long and the gap (BSE) between the shaft ends is 1/8 inch. Step 6: Prior to finalizing the 1060...

Lovejoy Coupling Solutions Grid Application Service Factors Selection Data Application Service Factors Chart 1 Service Factors Service Factors Service Factors Beater, Pulper, Calender, Barking Drum L.S. Shaft of Reducer with Final Drive-Machined Spur Gear, Chipper..2.50 * * Notes: ■ 1 indicates: For high peak load applications, please refer to selection process on page GD-5. ■ * indicates: That Lovejoy Application Engineering should be consulted with specific requirements. ■ Caution: Applications involving reciprocating engines and reciprocating driven devices are subject to critical...

Lovejoy Coupling Solutions Grid Application Service Factors Selection Data Draw Bench Carriage, Main Drive, Extruder, Forming Notes: ■ 1 indicates: For high peak load applications, please refer to selection process on page GD-5. ■ 2 indicates: If people are transported Lovejoy does not recommend and will not warranty the use of the coupling. ■ * indicates: That Lovejoy Application Engineering should be consulted with specific requirements. ■ Caution: Applications involving reciprocating engines and reciprocating driven devices are subject to critical rotational speeds which may damage...

Grid Coupling Selection Worksheet JW Contact Name:__________________________________________________________ Customer Name: _______________________________________ Phone Number:_________________________________________ Email Address: __________________________________________________________ Standard Grid Style Coupling Standard Grid Spacer Coupling 3. Driver or Gearbox output RPM:_________________________ 2. Driver Horse Power : ____________ For combustion engines, define type Gasoline, Diesel, Natural Gas, etc.: ______________ 1. Type of Driver (Electric Motor, Combustion Engine, Gearbox,...

Lovejoy Coupling Solutions Grid Standard Coupling Performance Data Horizontal Cover Style Standard Grid Style Couplings Horizontal and Vertical Cover The Lovejoy Grid coupling is an ideal coupling for applications where excellent performance is desired and additional requirements for vibration dampening may exist. The Horizontal Split Cover design is recommended in applications where there may be some constraints on the diameter of the coupling. The vertical design is recommended for applications where higher speed is one of the requirements. Features: ■ Designed for ease of maintenance and...

Lovejoy Coupling Solutions Grid Standard Coupling Dimensional Data Grid Coupling with Horizontal Style CoverGrid Coupling with Vertical Style Cover Sizes 1020 - 1140 Sizes 1150 - 1200 Sizes 1020 - 1090 Note: ■ 1 indicates: For sizes 1020 thru 1080, the gap tolerance for dimension G is + .050” / - .050” (+ 1.5 mm / - 1.5 mm).For sizes 1090 thru 1120, the gap tolerance for dimension G is + .177” / - .118” (+ 4.5 mm / - 3 mm). For sizes 1120 thru 1200, the gap tolerance for dimension G is + .236” / - .177” (+ 6 mm / - 4.5 mm). www.lovejoy-inc.com 223 GD-11

Lovejoy Coupling Solutions Grid Spacer Style Performance / Dimensional Data Standard Grid Spacer and Half Spacer Style Couplings Horizontal Cover The Lovejoy Grid Spacer coupling is an ideal coupling for applications where there is a requirement for some vibration dampening in installations that are not close coupled. This means some amount of gap, or BSE exists between the driver and driven equipment shafts. All Lovejoy Grid Spacer Couplings are supplied with Horizontal Split Covers. The split cover design allows for quick access to the grid spring for ease of maintenance or grid...