The Timken Company - Saga Hubs - Rough Stock Bore

Saga is a general purpose, torsionally soft coupling with high tolerance to all forms of misalignment. The design features hexagonal or octagonal rubber donut-shaped elements with metal inserts positioned at each apex during the vulcanization process. These metal inserts carry actual bolts which fix the element to tines on cast, cylindrical hubs. Embedded inserts also have tines which connect with mating surfaces on hubs so that axial bolts can be easily torqued during assembly without twisting the rubber beyond the limits of its elasticity. The rubber between each apex is pre-compressed, so it is much more durable to the stresses arising from the various forms of misalignment and torsional vibrations.

Note: A complete Saga coupling is comprised of 2 hubs, an elastomeric donut, and hardware.

Saga General Purpose Coupling Hubs w/ Rough Stock Bore - Imperial-2

Unit of Measure

Items	68514422079 Saga Hubs - Rough Stock Bore	68514422111 Saga Hubs - Rough Stock Bore	68514422124 Saga Hubs - Rough Stock Bore	68514422154 Saga Hubs - Rough Stock Bore	68514422197 Saga Hubs - Rough Stock Bore
Description	N/A SAGA-11-HUB-5/8 RSB-NKW-NSS	N/A SAGA-13-HUB-3/4 RSB-NKW-NSS	N/A SAGA-15-HUB-7/8 RSB-NKW-NSS	N/A SAGA-18-HUB-1" RSB-NKW-NSS	N/A SAGA-22-HUB-1" RSB-NKW-NSS
Coupling	N/A S11	N/A S13	N/A S15	N/A S18	N/A S22
Set Screw Thread Size (Dimension T)	N/A No Setscrew
Rough Stock Bore	N/A 5/8 in	N/A 3/4 in	N/A 7/8 in	N/A 1 in	N/A 1 in
Max. Bore (Dimensions ID1/ID2)	N/A 1.188 in30.00 mm	N/A 1.375 in35.00 mm	N/A 1.875 in48.00 mm	N/A 2.225 in57.00 mm	N/A 2.500 in64.00 mm
Coupling Type	N/A Torsional
Material	N/A Steel
Keyway Size (W x D)	N/A No Keyway
Length thru Bore	N/A 1.500 in	N/A 1.75 in	N/A 2.130 in	N/A 2.500 in	N/A 3.000 in
Style	N/A Flexible
Outside Diameter	N/A 3.560 in	N/A 4.280 in	N/A 5.090 in	N/A 6.280 in	N/A 7.310 in
Overall Length	N/A 4.560 in	N/A 5.220 in	N/A 6.410 in	N/A 7.440 in	N/A 8.690 in
Color	N/A Gray/Metallic
Recommended Torque (Wet)	N/A 13.00 ft·lb	N/A 23.00 ft·lb	N/A 23.00 ft·lb	N/A 55.00 ft·lb	N/A 110.00 ft·lb
Recommended Torque (Dry)	N/A 17.00 ft·lb	N/A 30.00 ft·lb	N/A 30.00 ft·lb	N/A 75.00 ft·lb	N/A 150.00 ft·lb
Bore Type	N/A Rough Stock Bore
Min. Bore (Dimensions ID1/ID2)	N/A 0.625 in	N/A 0.750 in	N/A 0.875 in	N/A 1.000 in	N/A 1.000 in
Max. Speed	N/A 10000 rpm	N/A 8400.00 rpm	N/A 7000.00 rpm	N/A 5600.00 rpm	N/A 5000 rpm
Dimension BC	N/A 2.560 in65.02 mm	N/A 3.060 in77.72 mm	N/A 3.690 in93.73 mm	N/A 4.560 in115.82 mm	N/A 5.200 in132.08 mm
Dimension HD	N/A 1.840 in	N/A 2.250 in	N/A 2.880 in	N/A 3.440 in	N/A 3.880 in
Dimension L	N/A 1.130 in28.70 mm	N/A 1.310 in33.27 mm	N/A 1.630 in41.40 mm	N/A 1.810 in45.97 mm	N/A 2.060 in52.32 mm
Bolt Size	N/A 5/16-18 x 1-3/4	N/A 3/8-16 x 2	N/A 3/8-16 x 2-1/2	N/A 1/2-13 x 3	N/A 5/8-11 x 3-1/4
Dynamic Torsional Stiffness	N/A 47.00 in·lb/deg2693.00 in·lb/rad	N/A 67.00 in·lb/deg3839.00 in·lb/rad	N/A 120.00 in·lb/deg6875.00 in·lb/rad	N/A 200.00 in·lb/deg11459.00 in·lb/rad	N/A 400.00 in·lb/deg22918.00 in·lb/rad
Specific Torsional Stiffness	N/A 7.69 in·lb/rad	N/A 6.40 in·lb/rad	N/A 6.88 in·lb/rad	N/A 5.73 in·lb/rad	N/A 7.64 in·lb/rad
Moment of Inertia WR²	N/A 3.000 lb·in²	N/A 6.600 lb·in²	N/A 14.300 lb·in²	N/A 40.000 lb·in²	N/A 102.000 lb·in²
Rated Torque for 1.0 Service Factor	N/A 350.0000 in·lb	N/A 600.0000 in·lb	N/A 1000.0000 in·lb	N/A 2000.0000 in·lb	N/A 3000.0000 in·lb
Rated HP at 100 rpm for 1.0 Service Factor	N/A 0.56 hp	N/A 0.95 hp	N/A 1.59 hp	N/A 3.17 hp	N/A 4.76 hp
# of Bolts	N/A 6
Bolt Grade	N/A # 5
Weight	N/A 1.10 lb	N/A 2.80 lb	N/A 3.75 lb	N/A 6.80 lb	N/A 9.80 lb
Complete Coupling Weight	N/A 4.75 lb	N/A 6.50 lb	N/A 10.00 lb	N/A 17.00 lb	N/A 31.00 lb
Cubic inches	N/A 19.01040 in³	N/A 32.05720 in³	N/A 55.18425 in³	N/A 98.59600 in³	N/A 160.30830 in³
Normal Temperature Range	N/A -60 to 200 ºF
Rated Torque for 1.0 SF	N/A 350.00 in·lb	N/A 600.00 in·lb	N/A 1000.00 in·lb	N/A 2000.00 in·lb	N/A 3000.00 in·lb
Max. Shock Load	N/A 1000.00 in·lb	N/A 1800.00 in·lb	N/A 3000.00 in·lb	N/A 6000.00 in·lb	N/A 9000.00 in·lb