JW JW JW JIS JIS JIS CJ CJ CJ S-Flex SF SF SF MC G G ■■ S Type G ■■ J Type MC MC In This Section: HP HP ■■ SC Type – Spacer HP ■■ B Type ■■ T Type GD GD GD D D D SP SP SP T T T UJ UJ UJ VSD VSD VSD R R R SLD SLD SLD ED ED ED www.lovejoy-inc.com 71 SF-1 SF-

SF SF SF MC MC MC G G G HP CJ CJ CJ JIS JIS JIS JW JW JW S-Flex HP HP 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. GD GD GD D D D T T T SP SP SP 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,...

S-Flex The simple design of the S-Flex coupling ensures ease of assembly and reliable performance. No special tools are needed for installation or removal. S-Flex couplings can be used in a wide variety of applications. Features Protection from misalignment, shock, and vibration: JIS JIS Elastomer In Shear Type Couplings JW JW Overview ■■Maintenance Free CJ CJ ■■Easy to Install ■■No Lubrication SF MC ■■Torque is transmited through the flanges mounted on both the driver and driven shafts via the sleeve ■■The S-Flex coupling design is comprised of three parts: two flanges with internal teeth engage...

S-Flex Elastomer Designs JW JW Elastomer Designs ■■Lovejoy offers flexible sleeve for S-Flex coupling in three designs: onepiece solid, one-piece split, and two-piece with retaining ring JIS JIS ■■The one-piece split design provides solutions for applications with unique requirements where small shaft separations inhibit the installation of a one-piece solid sleeve CJ CJ ■■Pre-molded teeth along the diameter of the sleeve engage with teeth of the coupling flanges JE and JN Type MC MC ■■All three sleeve materials are highly elastic which permits the S-Flex coupling to protect connected equipment...

S-Flex List of Charts provided for Selection: The selection process for determining the proper S-Flex coupling requires using the charts shown on the following pages. There are three components to be selected, two flanges and one sleeve. ■■Chart 1 - Application Service Factors (page SF-7) ■■Chart 2 - Sleeve Performance Data (page SF-8) JIS JIS S-Flex Coupling Selection Process JW JW Selection Process Information necessary before a coupling can be selected: ■■Chart 3 - S-Flex Nominal Rated Torque Data (page SF-8) Nominal Torque = in-lb= Nm= ■■Application or equipment description ■■Environmental...

^ world turns for COljg* Performance Data Sleeve Performance Data S-Flex Nominal Rated Torque Data Chart 3 Note: ■ 1 indicates: Operating Hytrel within a high service factor application is not recommended.

S Type Inch Bore / Key way _Item Selection The S Type coupling consists of two flanges and one sleeve. S Type Flange - Inch Bore and Keyway UPC Number Selection Table Notes: ■ All standard finished bore keyway flanges have 2 set screws @ 90°. Sizes 13,14 and 16 RSB flanges are suitable for reboring and have two set screws @ 90°. Sizes 5-12 RSB flanges have no set screws. ■ When referencing the Lovejoy UPC number in this table, include 685144 as a prefix to the number shown.

^ world turns for COljg* Standard Sleeve, J and S Type Metric Bore / Keyway Item Selection The J and S Type coupling consists of two flanges and one sleeve. S-Flex Standard Sleeve UPC Number Selection Table Note: ■ 1 indicates: Bulk pack sizes 3-6 contain ten pieces, sizes 7-8 contain five pieces. J and S Type - Metric Bore and Keyway UPC Number Selection Table Notes: ■ Metric Bore / Keyway per DIN specifications. See engineering section ■ When referencing the Lovejoy UPC number in this table, include 6851 44 as a prefix to the number shown.

Item Selection The J Type coupling consists of two J flanges and one sleeve. J Type Flange - Inch Bore and Keyway UPC Number Selection Table standard keyway The SC Type coupling consists of two SCH or SCHS hubs, two SC spacer flanges, and one sleeve. SC Type Spacer Flanges 1 indicates: See page SF-22 for other lengths possible thru various combinations. SCH and SCHS Type - Inch Bore and Keyway UPC Number Selection Table When referencing the Lovejoy UPC number in this table, include 685144 as a prefix to the number shown.

^ world turns for COljg* Performance Data S-Flex Performance Ratings Notes: ■ 1 indicates: Values shown are for an ambient temperature of 75° F (24° C). ■ Coupling ratings are based on sleeve material regardless of flange design.

Dimensional Data S-Flex Sleeve Types S-Flex Sleeves ■ Flexible sleeves for Lovejoy S-Flex couplings are available in three materials (EPDM, Neoprene, and Hytrel®) and in three basic designs: one piece solid, one-piece split, or two piece ■ JE and JN Type sleeves feature a one-piece solid design ■ JES and JNS Type sleeves feature a one-piece split design ■ JE and JES Type sleeves are molded in EPDM material ■ JN and JNS Type sleeves are molded in Neoprene material ■ E and N Type sleeves feature a two-piece design with retaining ring ■ E Type sleeves are made from EPDM material and are available...

^ world turns for COljg* J Type Flanges and J Type Couplings ■ The J Type flanges in sizes 3J and 4J are made from die cast of high strength zinc alloy (tensile strength of 41,000 psi) and are furnished bore-to-size ■ Size 5J is provided in either zinc alloy or cast iron depending on the bore size ■ Size 6J is made from cast iron ■ J flanges are compatible with EPDM or Neoprene sleeves ■ Each flange has a keyway and two set screws (one set screw over the key and ■ Complete S-Flex couplings, with J Type flanges described above, are normally supplied with the one-piece JE sleeve or the one-piece...

Dimensional Data S Type Flanges and S Type Couplings ■ S flanges are made of high strength cast iron and are bored-to- size for a slip fit on standard shafts ■ S flanges are easy to install, are readily available from stock in a wide range of popular bore sizes, and are supplied with two set ■ S Type couplings, normally supplied with the two-piece E sleeve, can be used with any JE, JN, N, H, or HS sleeves S Type Dimensional Data Notes: ■ Spacing between shafts should be greater than 1/8 inch and less than OAL minus the sum of the two bore dimensions. ■ See page SF-12 for Performance Data. ■ The...