The Timken Company - SX-6 Type Hubs without Keyway - Metric Bores (for use with Shaft Locking Devices)

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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.

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Unit of Measure

Items	69790411829 SX-6 Type Hubs without Keyway - Metric Bores (for use with Shaft Locking Devices)	69790411828 SX-6 Type Hubs without Keyway - Metric Bores (for use with Shaft Locking Devices)	69790411825 SX-6 Type Hubs without Keyway - Metric Bores (for use with Shaft Locking Devices)
Description	N/A SX255-6-HUB-55MM-MOD SLD1500 LTB	N/A SX255-6-HUB-70MM-MOD SLD1500 LTB	N/A SX202-6-HUB-45MM-MOD SLD1500 45X75
Bore Size	N/A 55.00 mm	N/A 70.00 mm	N/A 45.00 mm
Size	N/A 255-6	N/A 255-6	N/A 202-6
Hub Style	N/A Standard
Type	N/A Disc Coupling Hubs
Hub Material	N/A AISI 1045
Set Screw Style Coupling Size (Dimension T)	N/A No Setscrew
Keyway Size (W x D)	N/A No Keyway
Keyway Size (W x D) 2	N/A No Keyway
Length thru Bore	N/A 2.65 in67.31 mm	N/A 2.65 in67.31 mm	N/A 3.54 in89.92 mm
Style	N/A Bored
Overall Length (for SX Type coupling)	N/A	N/A	N/A 13.330 in339.00 mm
Color	N/A Metallic
Nominal Torque	N/A 90300.00 in·lb10200.00 N·m	N/A 90300.00 in·lb10200.00 N·m	N/A 40700 in·lb4600 N·m
Max. Torque	N/A 180600.00 in·lb20400.00 N·m	N/A 180600.00 in·lb20400.00 N·m	N/A 81400 in·lb9200 N·m
Max. Bore (Dimensions ID1/ID2)	N/A 4.310 in110.00 mm	N/A 4.310 in110.00 mm	N/A 3.500 in90.00 mm
Max. Speed (Unbalanced)	N/A 3080.00 rpm	N/A 3080.00 rpm	N/A 3840 rpm
Max. Speed (Balanced)	N/A 7700.00 rpm	N/A 7700.00 rpm	N/A 9600 rpm
Dimension FD	N/A 10.040 in255.00 mm	N/A 10.040 in255.00 mm	N/A 7.950 in202.00 mm
Dimension HD	N/A 6.100 in155.00 mm	N/A 6.100 in155.00 mm	N/A 4.920 in125.00 mm
Dimension PW	N/A 0.807 in20.50 mm	N/A 0.807 in20.50 mm	N/A 0.610 in15.49 mm
Dimension S	N/A 6.140 in156.00 mm	N/A 6.140 in156.00 mm	N/A 5.030 in128.00 mm
Distance between Shaft Ends (Dimension BSE)	N/A 7.750 in197.00 mm	N/A 7.750 in197.00 mm	N/A 6.250 in159.00 mm
Axial Misalignment (+-D Ka) for couplings with TWO disc packs	N/A 0.185 in4.70 mm	N/A 0.185 in4.70 mm	N/A 0.15 in3.8 mm
Max. Angular Misalignment (per single disc pack)	N/A 1.00 º
Torsional Stiffness x 10^6 (of one disc pack)	N/A 41.00 in·lb/rad4.70 Nm/rad	N/A 41.00 in·lb/rad4.70 Nm/rad	N/A 13.3 in·lb/rad1.50 Nm/rad
Rated Power at 100 rpm	N/A 143.20 hp106.80 kW	N/A 143.20 hp106.80 kW	N/A 64.6 hp48.2 kW
Coupling Series	N/A SX-6
Coupling Type	N/A Disc
Weight	N/A 26.13 lb	N/A 22.24 lb	N/A 18.69 lb
Weight (Complete Coupling w/ Max. Bores)	N/A 88.20 lb40.00 Kg	N/A 88.20 lb40.00 Kg	N/A 46.30 lb21.00 Kg
Cubic inches	N/A 1694.47490 in³	N/A 1694.47490 in³	N/A 223.73685 in³