# Kop-Flex 304 KD 21 LL700 2430155 KD Disc Coupling Size 304 Style KD21 7.00" Spacer 9" OD 4.5" Max Bore - MROSupply.com ***Kop-Flex 304 KD 21 LL700 (Rexnord PN 2430155) Size 304 KD disc coupling, Style KD21, 7.00" limited end-float spacer, 9" outside diameter, 4.5" max bore. Maintenance-free, non-lubricated design with zero backlash for high-performance applications. Double-engagement disc pack with finished bore hubs.*** ## Product details: - Catalog number: 2430155 - SKU: 2294262 - Price: ***$15,720.93*** 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: 95.246 lb - UPC: 662384012743 - 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 (+/-): 0.17 - Bore Range (in): 1.5 to 4.5 - Bore Size Max: 4.5 - Bore Size Min: 1.5 - Bore Type: Rough Bore - Configuration: 2 long hubs - Coupling Size: 304 - Coupling Type: Disc Coupling - Disc Coupling Type: Spacer Coupling - Disc Shape: Scalloped - Hub Diameter (in): 6.16 - Hub Material: Carbon steel - Length Through Bore (long hub) (in): 4.19 - Lube/Non-Lube: Non-Lubricated - Max Compatible Bore Size (long hub) (in): 4.5 - Max Torque (ft-lb): 14833 - Measurement System: Imperial - Min Compatible Bore Size (long hub) (in): 1.5 - OD: 9 - Rating HP @ 100 RPM: 141 - Speed Max (rpm): 9900 - Stock C Dimension: 7 - Style: KD21 - Torque Rating (in-lb): 89000 - Total Length (One Hub Reverse) (in): Total Length (One Hub Reverse) (in) - Total Length (Std Hub Post) (in): 15.38 - Total WR2 (lb-in2): 745 ## 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/30/304%20KD%2021%20LL700/regalpts_PTS-KD21_Master-304_KD21_LL700_5p1xEa8.IGS) - [Instruction Sheet](https://documents.mrosupply.com/product_documents/35/354%20KD%2021%20LL900/Form15-110.pdf) ## Alternate products to `Kop-Flex 304 KD 21 LL700 2430155 KD Disc Coupling Size 304 Style KD21 7.00" Spacer 9" OD 4.5" Max Bore - MROSupply.com`: - [Kop-Flex 204 KD 21 LL1200 (Rexnord PN 2430106) Size 204 KD disc coupling, Style KD21, 12.00" limited end-float spacer, 6.38" OD, 3" max bore, non-lubricated. 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Suitable for high-performance industrial applications requiring reliable torque transmission and misalignment accommodation.](https://www.mrosupply.com/products/2294152/as-markdown/) - [Kop-Flex 304 KD 21 LL1400 (Rexnord PN 2430171) KD disc coupling, size 304, style KD21, with 14.00" limited end-float spacer, 9" outside diameter, and 4.5" max bore. Non-lubricated, maintenance-free double-engagement design for zero-backlash, high-performance applications.](https://www.mrosupply.com/products/2294260/as-markdown/) - [Kop-Flex 254 KD 21 LL900 (Rexnord 2430130) size 254 KD disc coupling, style KD21, 9.00" limited end-float spacer, 7.62" outside diameter, 3.75" max bore, non-lubricated. Double-engagement disc coupling for high-performance applications requiring zero backlash and maintenance-free operation. Patented disc technology eliminates lubrication needs while accommodating angular, parallel, and axial misalignment.](https://www.mrosupply.com/products/2294158/as-markdown/) - [Kop-Flex 304 KD 21 LL900 (Rexnord PN 2430163) Size 304 KD Disc Coupling, Style KD21, double-engagement, 9.00" limited end-float spacer, 9" outside diameter, 4.5" max bore. Non-lubricated, maintenance-free design with zero backlash for high-performance applications.](https://www.mrosupply.com/products/2294264/as-markdown/) - [Kop-Flex 354 KD 21 LL700 (Rexnord PN 2430189) Size 354 KD Disc Coupling, Style KD21, with 7.00" limited end-float spacer, 10.5" outside diameter, and 5" max bore. Maintenance-free, non-lubricated design eliminates lubrication needs while providing high torsional stiffness for precise motion control in industrial drivetrains.](https://www.mrosupply.com/products/2294350/as-markdown/) - [Kop-Flex 354 KD 21 LL900 (Rexnord PN 2430197) Size 354 KD Disc Coupling, Style KD21, with 9.00" limited end-float spacer, 10.5" outside diameter, and 5" max bore. Rough bore construction. Maintenance-free, non-lubricated disc coupling for high-performance industrial applications requiring zero backlash and no lubrication.](https://www.mrosupply.com/products/2294352/as-markdown/)