Kop-Flex Non Stock Spacers

Non stock spacers are available in KD^® couplings and Gear couplings for applications with extended shaft separations.

KD2 , KD20, KD21 and KD22 spacer couplings are designed for medium to heavy duty applications. They require moderate shaft separations.

Full flex spacer gear couplings are used for 4 bearing installations with extended shaft ends. LEF END FLOAT (LEF) spacer couplings are used for sleeve bearing motor applications with extended shaft separations. LEF spacers are supplied with steel LEF plates installed in each end.

View specifications

KD Series

KD2 Spacer

Sizes 053 – 453
Max. bores to 7.25″ (standard hub)
Jumbo hubs available for larger bores
Medium duty – 3 bolt design
Standard shaft separation for industrial pumps
Factory-assembled flexible center assembly with unitized disc packs
Highly flexible, unitized disc packs
AGMA Class 9 balance as manufactured
Designed specifically for API 610
Nomenclature: Example 203KD2SS700 — size 203, type KD2, two standard rough bore hubs with 7″ spacer — complete coupling

KD20 Spacer

Sizes 204 – 905
Max. bore up to 13.5″
Strongest design in the market
Standard shaft separation for industrial pumps
Factory-assembled flexible center assembly with unitized disc packs
High torque disc packs – 4 bolt design
AGMA Class 9 balance as manufactured – class 10 and 11 available options
Designed specifically for API 610
Use jumbo hubs to downsize or for larger bores
Nomenclature: Example 204KD20SS1200 — size 204, type KD20, two standard rough bore hubs with 12″ spacer — complete coupling

KD21 Spacer

Sizes 103 – 905
Max. bore up to 13.5″
Heavy duty applications
Simple 3-piece design
Standard shaft separation for industrial pumps
Drop-out unitized disc packs
Rating similar to gear couplings
Economical design
Nomenclature: Example 304KD21SS900 — size 304, type KD21, two standard rough bore hubs with 9″ spacing — complete coupling

KD22 Spacer

Sizes 103 – 905
Max. bore up to 11.5″
Heavy duty applications
Designed to directly replace standard spacer style gear type couplings
Drop out spacer for ease of installation
Standard shaft separation for industrial pumps
High torque unitized disc packs
Ratings similar to gear couplings
Uses KD42 flex half and standard gear coupling spacer

Gear

Fast

300% greater lube capacity
All-metal end rings
2 to 3 times the life vs. o-ring style
6″ (152 mm) to 78″ (2 m) OD
Max. bore up to 36″ (914 mm)
Coupling of choice with longest history
Custom-design and specials available see catalog

Fast

O-ring style seal
Half for half interchangeable with all AGMA standard couplings
Max. bore up to 43.5″ (1.1 meter)
Max. torque up to 284 million lb-in (32100 kN-m)
Slide, shear pin, floating shaft, alloy steel, and other styles available
Custom design and specials available

Waldron

High misalignment seal to prevent grease leakage
Greater tooth contact than other spherical styles
40° tooth
Max. bore up to 9.25″ (235 mm

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