The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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    Note: SX Type Hubs are interchangeable for both the SU and SX style disc couplings (but not SXC style).
    The SU Type coupling has a single flex plane, and is comprised of a single disc pack kit with two hubs. It is suitable for angular and axial misalignment only. Two SU couplings are often combined with a shaft to make a floating shaft coupling. The shaft can be hollow for long light weight floating shaft couplings.
    The SX Type is the standard coupling type that includes two hubs, a stock length spacer designed to meet industry standard lengths, and two unitized disc packs. The coupling has two flex planes, one at each disc pack, allowing this coupling to accommodate parallel, angular, and axial misalignment with specified limits. The coupling is available in 4, 6, and 8 bolt designs and bore sizes up to 13 inches (330mm) on the largest size. Custom spacer lengths can be manufactured to meet special shaft separations required for specific applications. The SX coupling can be fitted with overload bushings to protect the disc packs in over torque conditions and can act as an anti-flail device. SX couplings are assembled at the time of installation on the equipment where the coupling will be in service.
SX-6 Type Industrial Coupling Hubs - Metric
SX-6 Type Industrial Coupling Hubs - Metric-2
Unit of Measure
Items SX-6 Type Industrial Coupling Hubs - Metric
69790497645
SX-6 Type Hubs without Keyway - Inch (Imperial) Bores 		SX-6 Type Industrial Coupling Hubs - Metric
69790411826
SX-6 Type Hubs without Keyway - Inch (Imperial) Bores
Description  N/A SX228-6-HUB-3-1/2-NKW N/A SX255-6-HUB-2-1/2-MOD SLD1500 LTB
Bore Size  N/A 3 1/2 in N/A 2 1/2 in
Hub Style N/A Standard
Type N/A Disc Coupling Hubs
Size N/A 228-6 N/A 255-6
Hub Material N/A AISI 1045
Set Screw Style Coupling Size (Dimension T) N/A No Setscrew
Keyway Size N/A No Keyway
Length thru Bore N/A 3.940 in100.08 mm N/A 2.65 in67.31 mm
Style N/A Bored
Overall Length (for SX Type coupling) N/A 14.760 in375.00 mm N/A
Color N/A Metallic
Nominal Torque N/A 62000.00 in·lb N/A 90300.00 in·lb
Max. Torque N/A 123900.00 in·lb N/A 180600.00 in·lb
Max. Bore (Dimensions ID1/ID2) N/A 3.940 in100.00 mm N/A 2.65 in67.31 mm
Max. Speed (Unbalanced) N/A 3400.00 rpm N/A 3080.00 rpm
Max. Speed (Balanced) N/A 8500.00 rpm N/A 7700.00 rpm
Dimension FD N/A 8.980 in228.00 mm N/A 10.040 in255.00 mm
Dimension HD N/A 5.510 in140.00 mm N/A 6.100 in155.00 mm
Dimension PW N/A 0.689 in17.50 mm N/A 0.807 in20.50 mm
Dimension S N/A 5.500 in140.00 mm N/A 6.140 in156.00 mm
Distance between Shaft Ends (Dimension BSE) N/A 6.880 in175.00 mm N/A 7.750 in197.00 mm
Axial Misalignment (+-D Ka) for couplings with TWO disc packs N/A 0.165 in N/A 0.185 in
Max. Angular Misalignment (per single disc pack) N/A 1.00 º
Torsional Stiffness x 10^6 (of one disc pack) N/A 23.00 in·lb/rad N/A 41.00 in·lb/rad
Rated Power at 100 rpm N/A 98.30 hp73.30 kW N/A 143.20 hp106.80 kW
Coupling Series N/A SX-6
Coupling Type N/A Disc
Weight N/A 21.81 lb N/A 24.80 lb
Weight (Complete Coupling w/ Max. Bores) N/A 66.10 lb N/A 88.20 lb
Cubic inches N/A 317.72318 in³ N/A 456.63125 in³