Curved Jaw 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 Coupling Solutions Curved Jaw CJ Series Design / Elastomers Overview The Curved Jaw Design ■ Three piece design that is easy to assemble ■ The curved jaw design incorporates both radial and axial curvature (crowning) to the elastomer (spider) ■ Hubs are offered in sintered iron, steel, aluminum, cast iron and nodular iron materials ■ Three different urethane elastomers available ■ No metal to metal contact and no lubrication required ■ Fail safe design due to the jaw in compression design (continues to function after the elastomer fails) ■ The CJ series covers a torque range of 67 to...

Lovejoy Coupling Solutions Curved Jaw CJ Series Selection Process Step 6: Steps In Selecting A Curved Jaw Coupling Step 1: Determine the nominal torque of your application: in-lbs = Tkn = HPx63025 RPM Step 2: Calculate your Application Service Factor using the charts below. The total Service Factor (K) will be: K = K1 x K2 x K3 Step 3: Calculate the design torque (DTkmax) of your application. Design Torque (DTkmax) = Nominal Torque x service factor. Step 4: Using the Elastomer Torque Ratings Tables on pages CJ-6 and CJ-7 select the urethane shore hardness which best corresponds to your relative...

Lovejoy Coupling Solutions Curved Jaw CJ Series Elastomer Torque Rating Performance DataCJ Series Elastomer Torque Ratings

Lovejoy Coupling Solutions Curved Jaw CJ Series Elastomer Torque Rating Performance DataCJ Series Elastomer Torque Ratings Continued

Lovejoy Coupling Solutions Curved Jaw CJ Series Spiders Dimensional Data Curved Jaw Coupling Spiders Dimensional Data A

Lovejoy Coupling Solutions Curved Jaw CJ Series Powder Metal / Steel Dimensional Data The Curved Jaw coupling consists of two standard hubs and one spider. CJ Series Powder Metal / Steel Dimensional Data OAL Notes: ■ * indicates: Maximum bore may be achieved through the use of a ■ W = Spider thickness. shallow keyway. ■ Outside diameter of spider equal to OD. ■ CL = Distance between spider and hub face. ■ H = Inside diameter of spider. ■ Max Bore refers to maximum straight bore with keyway allowed in hub. ■ S = Solid hub with no bore. ■ OD is equal to HD for B style aluminum sizes: 19,...

Lovejoy Coupling Solutions Curved Jaw CJ Series Aluminum, Cast Iron, Nodular Iron Dimensional Data The Curved Jaw coupling consists of two standard hubs and one spider. CJ Series Cast Iron / Nodular Iron Dimensional Data OAL ■ W = Spider thickness. ■ Outside diameter of spider equal to OD. ■ H = Inside diameter of spider. ■ ** = Powder Metal Notes: ■ * indicates: Maximum bore may be achieved through the use of a shallow keyway. ■ CL = Distance between spider and hub face. ■ Max Bore refers to maximum straight bore with keyway allowed in hub. ■ S = Solid hub with no bore. ■ OD is equal to HD for...

CJ Series Powder Metal / Cast Iron Item Selection The Curved Jaw coupling consists of two standard hubs and one spider. CJ Series – Metric Powder Metal and Cast Iron UPC Number Selection Table Keyway Size

Lovejoy Coupling Solutions Curved Jaw CJ Series Aluminum / Steel BX Item Selection The Curved Jaw coupling consists of two standard hubs and one spider.

Lovejoy Coupling Solutions Curved Jaw CJ Series Displacement / Misalignment CJ Series Installation and Misalignment Capabilities Axial Displacement Radial Displacement Size: The values regarding displacement are provided assuming normal operating conditions (i.e. temperature, torque with nominal rating of the coupling, speed/ RPM rating of the coupling, and misalignment). Careful installation (i.e. alignment) and periodic inspection should be provided to provide the optimum life of the coupling. Special consideration should be given as to the position of the shafts and the amount of axial movement...

Lovejoy Coupling Solutions Curved Jaw CJ Series CJDB and CJSB Dimensional Data The Curved Jaw Double Bolt (CJDB) coupling consists of two shaft hubs, two Jaw rings and one spider. The Curved Jaw Single Bolt (CJSB) coupling consists of one shaft hub, one Jaw ring, one standard hub and one spider. Features ■ Both curved jaw double bolt (CJDB) and single bolt (CJSB) ■ Flange is available in steel only CJ Series CJDB and CJSB Dimensional Data OAL Note: ■ S = Solid hub with no bore.

world turns ^ CUTVOd JflW Love/oy Coupling Solutions CJLFH, CJDLF, CJSFH, and CJDSF Dimensional Data The Curved Jaw Large Flange to Hub (CJLFH) coupling consists of one standard hub, one large flange and one spider. The Curved Jaw Double Large Flange (CJDLF) coupling consists of two large flanges and one spider. The Curved Jaw Small Flange to Hub (CJSFH) coupling consists of one standard hub, one Jaw ring and one spider. The Curved Jaw Double Small Flange (CJDSF) coupling consists of two Jaw rings and one spider. Features ■ Flange to Flange design available for applications requiring space...

Lovejoy Coupling Solutions Curved Jaw CJSPC and CJDSPC Dimensional Data The Curved Spacer (CJSPC) coupling consists of two standard hubs, one spacer and two spiders. The Curved Drop-out Spacer (CJDSPC) coupling consists of two standard hubs, two Jaw rings, one spacer and two spiders. Features ■ Hubs available in aluminum, sintered iron, cast iron, and steel ■ Spacer style features an aluminum spacer piece ■ Drop-out style features two inserts for increased damping and parallel misalignment capability ■ Center drop-out design provides easy element replacement ■ Designed to accommodate a larger...