# Kop-Flex 204 KD 21 LL1000 FB 2430304 KD Disc Coupling Size 204 Style KD21 10.00" Spacer Finished Bore 6.38" OD 3" Max Bore - MROSupply.com ***Kop-Flex 204 KD 21 LL1000 FB (Rexnord PN 2430304) Size 204 KD Disc Coupling, Style KD21, 10.00" limited end-float spacer, finished bore, 6.38" outside diameter, 3" max bore. Non-lubricated, maintenance-free flexible disc design for high-performance driveline applications.*** ## Product details: - Catalog number: 2430304 - SKU: 2293962 - Price: ***$4,867.26*** Each - Shipping: ***FREE SHIPPING*** ON ORDERS OVER $100 - Typically Ships in: 1 day - Brand: [KOP-FLEX](https://www.mrosupply.com/brands/kop-flex/) - Category: - [Double Disc Spacer Type](htts://www.mrosupply.com/shaft-couplings-and-collars/disc-couplings/complete-units/double-disc-spacer-type/) - [Complete Units](htts://www.mrosupply.com/shaft-couplings-and-collars/disc-couplings/complete-units/) - [Disc Couplings](htts://www.mrosupply.com/shaft-couplings-and-collars/disc-couplings/) - [Shaft Couplings and Collars](htts://www.mrosupply.com/shaft-couplings-and-collars/) - Unit of measure: each - Weight: 47.356 lb - UPC: 662384012897 - Returns: Yes - Technicall support: contact supplier for technical support on 800-626-2120 ## Product images: - https://static.mrosupply.com/images/noimage.webp ## Product attributes; - Axial Capacity (+/-): 0.11 - Bore Size Max: 3 - Bore Type: Finished Bore - Configuration: 2 long hubs - Coupling Size: 204 - Coupling Type: Disc Coupling - Hub Material: Carbon steel - Length Through Bore (long hub) (in): 3.03 - Lube/Non-Lube: Non-Lubricated - Max Compatible Bore Size (long hub) (in): 3 - Max Torque (ft-lb): 6000 - Measurement System: Imperial - OD: 6.38 - Rating HP @ 100 RPM: 57.1 - Speed Max (rpm): 13000 - Stock C Dimension: 10 - Style: KD21 - Torque Rating (in-lb): 36000 - Total Length (One Hub Reverse) (in): Total Length (One Hub Reverse) (in) - Total Length (Std Hub Post) (in): 16.06 - Total WR2 (lb-in2): 160 ## Product documents / software: - [ Drawing](https://documents.mrosupply.com/product_documents/35/354%20KD%2021%20LL900/M113.gif) - [3D Drawing IGES](https://documents.mrosupply.com/product_documents/20/204%20KD%2021%20LL1000%20FB/regalpts_PTS-KD21_Master-204_KD21_LL1000_3SImEuH.IGS) - [Instruction Sheet](https://documents.mrosupply.com/product_documents/35/354%20KD%2021%20LL900/Form15-110.pdf) ## Alternate products to `Kop-Flex 204 KD 21 LL1000 FB 2430304 KD Disc Coupling Size 204 Style KD21 10.00" Spacer Finished Bore 6.38" OD 3" Max Bore - MROSupply.com`: - [Kop-Flex 254 KD 21 LL900 FB 2430346 KD21 disc coupling with 9.00" limited end-float spacer, finished bore, 7.62" outside diameter, and 3.75" max bore. Maintenance-free, non-lubricated design for high-performance driveline applications.](https://www.mrosupply.com/products/2294159/as-markdown/) - [Kop-Flex 304 KD 21 LL900 FB (Rexnord PN 2430379) Size 304 KD21 double-engagement disc coupling with 9.00" spacer length, 9" outside diameter, and 4.5" max bore. Finished bore design requires no lubrication, delivering maintenance-free operation with zero backlash and high torsional stiffness for demanding industrial drivelines.](https://www.mrosupply.com/products/2294265/as-markdown/) - [Kop-Flex 254 KD 21 LL1400 FB (Rexnord PN 2430353) Size 254 KD Disc Coupling, Style KD21, 14.00" limited end-float spacer, finished bore, 7.62" outside diameter, 3.75" max bore. Non-lubricated, maintenance-free flexible disc design for high-performance driveline applications.](https://www.mrosupply.com/products/2294153/as-markdown/) - [Kop-Flex 304 KD 21 LL1400 FB (Rexnord PN 2430387) Size 304 KD disc coupling, Style KD21, 14.00" limited end-float spacer, finished bore, 9" outside diameter, 4.5" max bore. Maintenance-free, non-lubricated flexible disc design eliminates lubrication downtime. Double-engagement configuration for angular, parallel, and axial misalignment compensation in industrial drivetrains.](https://www.mrosupply.com/products/2294261/as-markdown/) - [Kop-Flex 304 KD 21 LL700 FB (Rexnord PN 2430361) Size 304 KD21 double-engagement disc coupling with 7.00" limited end-float spacer and finished bore. 9" outside diameter, 4.5" max bore. Maintenance-free design requires no lubrication, ideal for pump, compressor, and industrial driveline applications.](https://www.mrosupply.com/products/2294263/as-markdown/) - [Kop-Flex 354 KD 21 LL700 FB (Rexnord PN 2430395) Size 354 KD Disc Coupling, Style KD21, with 7.00" limited end-float spacer and finished bore. Double-engagement disc coupling features 10.5" outside diameter and 5" max bore. Non-lubricated, maintenance-free design for high-performance industrial applications.](https://www.mrosupply.com/products/2294351/as-markdown/) - [Kop-Flex 204 KD 21 LL1200 FB (Rexnord PN 2430312) Size 204 KD Disc Coupling, Style KD21, finished bore, 12.00" limited end-float spacer, 6.38" OD, 3" max bore. Double-engagement, maintenance-free, non-lubricated design with zero backlash and high torsional stiffness. Ideal for applications requiring precise motion control and reliable torque transmission.](https://www.mrosupply.com/products/2293964/as-markdown/) - [Kop-Flex 254 KD 21 LL500 FB (Rexnord PN 2430320) Size 254 KD Disc Coupling, Style KD21, with 5.00" limited end-float spacer and finished bore. 7.62" outside diameter, 3.75" maximum bore. Non-lubricated, maintenance-free flexible disc design for high-performance industrial drivelines. Double-engagement configuration with limited end-float lock-up for controlled axial movement.](https://www.mrosupply.com/products/2294155/as-markdown/)