S-Flex
22Pages

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...

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. Protection from misalignment, shock, and vibration: Elastomer In Shear Type Couplings JW ■■Maintenance Free ■■Easy to Install ■■No Lubrication ■■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 an elastomeric flexible sleeve with...

Elastomer Designs ■■Lovejoy offers flexible sleeve for S-Flex coupling in three designs: onepiece solid, one-piece split, and two-piece with retaining ring ■■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 ■■Pre-molded teeth along the diameter of the sleeve engage with teeth of the coupling flanges ■■All three sleeve materials are highly elastic which permits the S-Flex coupling to protect connected equipment from harmful shock loading, vibration, and shaft misalignment...

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. List of Charts provided for Selection: Information necessary before a coupling can be selected: ■■Chart 3 - S-Flex Nominal Rated Torque Data (page SF-8) ■■Chart 1 - Application Service Factors (page SF-7) ■■Chart 2 - Sleeve Performance Data (page SF-8) S-Flex Coupling Selection Process JW Selection Process Nominal Torque = in-lb= (HP x 63025) RPM Nm= (KW x 9550) RPM ■■Application or equipment...

Lovejoy Coupling Solutions Application Service Factors S-Flex Application Service Factors Selection Data Chart 1 Service Factors Service Factors Service Factors Caution: Applications involving reciprocating engines and reciprocating driven devices are subject to critical rotational speeds which may damage the coupling and/or connected equipment. Contact Lovejoy Engineering with specific requirements. Note: ■ 1 indicates: If people are transported, Lovejoy does not recommend and will not warranty the use of the coupling.

Lovejoy Coupling Solutions S-Flex Performance Data Sleeve Performance Data Chart 2 Characteristics Note: ■ 1 indicates: Operating Hytrel within a high service factor application is not recommended.

Lovejoy Coupling Solutions S-Flex S Type Inch Bore / Keyway Item Selection The S Type coupling consists of two flanges and one sleeve.

Lovejoy Coupling Solutions Standard Sleeve, J and S Type Metric Bore / Keyway Item Selection The J and S Type coupling consists of two flanges and one sleeve.

Lovejoy Coupling Solutions S-Flex J, SC, SCH and SCHS Type Item Selection The J Type coupling consists of two J flanges and one sleeve. Notes: ■ We do not recommend reboring 3J or 4J Flanges. ■ See page ED-8 for standard keyway dimensions. The SC Type coupling consists of two SCH or SCHS hubs, two SC spacer flanges, and one sleeve.

Lovejoy Coupling Solutions S-Flex Ratings Performance Data S-Flex Performance Ratings Sleeve Material

Lovejoy Coupling Solutions S-Flex Sleeves 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, JN, JES and JNS Types ■ 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 Types ■ E and N Type sleeves feature a two-piece...

Lovejoy Coupling Solutions S-Flex J Type Dimensional Data J Type Flanges and J Type Couplings J Type Flanges ■ 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 one at 90° to the keyway) J Type Coupling ■ Complete S-Flex couplings, with J Type...

Lovejoy Coupling Solutions S-Flex S Type Dimensional Data S Type Flanges and S Type Couplings S Type Flanges ■ 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 screws at 90° S Type Couplings ■ S Type couplings, normally supplied with the two-piece E sleeve, can be used with any JE, JN, N, H, or HS sleeves Notes: ■ Spacing between shafts should be greater than 1/8 inch and less than OAL minus the sum of the...

Lovejoy Coupling Solutions S-Flex S Type Shallow Keyway Dimensional Data S Type Shallow Keyway Dimensional Data L

Lovejoy Coupling Solutions S-Flex B Type with Bushings Dimensional Data B Type Flange B Type Coupling B Type Flanges For Use With Bushings B Type Flange ■ Model B (bushed) flanges are made of the same high-strength cast iron as the S flanges ■ B flanges are designed to accommodate the industry standard bushing for easy installation and removal ■ B flanges are available in sizes 6 through 16 Couplings ■ S-Flex couplings with B flanges (for use with bushings) are normally supplied with the two-piece E sleeve ■ The B style flanges can be used with any of the sleeves pictured on SF-5, with...