#4 x 1/2" Shaft Sure-Flex® Coupling Half 4J-FLNG-1/2-NKW

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Product Description

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).

The J Type coupling consists of two flanges and one sleeve.

Spacing between shafts should be greater than 1/8 inch and less than OAL minus the sum of the two bore dimensions.

Timkens Quick Flex® Elastomeric Coupling Configurator helps you quickly size Quick Flex coupling solutions for common applications.

By entering motor power (HP or kW), speed (rpm), and service factors, the configurator presents available Quick Flex coupling options, supporting faster selection and quoting.

Access the Quick Flex® Coupling Configurator to speed up your next coupling selection.

Timken Lovejoy Master Catalog

S-Flex Coupling Installation Guide

Product Videos

Custom Field

Shaft diameter 1/2"

Series #4

Material Zinc die cast

Keyway size No keyway

Coupler type Sure-flex coupler

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