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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    The BWLC (Bellows Clamp) Series coupling specifically addresses higher torque and bore capacities in the area of motion control. The BWLC Series offers the highest amount of torsional stiffness for accuracy and repeatability. The BWLC Series coupling features a corrosion resistant steel bellow and aluminum or steel hubs.

    The BWLC Series also has a torque capacity of up to 1,328 in-lbs, with a maximum bore capacity of 1.574 inches in diameter. The larger size of the BWLC allows for a greater amount of axial misalignment of .020 inches, with low reactionary loading on bearings.
BWLC Series - Bellows Clamp Style Couplings - Metric
BWLC Series - Bellows Clamp Style Couplings - Metric-2
Unit of Measure
Items BWLC Series - Bellows Clamp Style Couplings - Metric
68514477008
BWLC Series - Bellows Clamp Style Couplings - Metric Bores 		BWLC Series - Bellows Clamp Style Couplings - Metric
68514477007
BWLC Series - Bellows Clamp Style Couplings - Metric Bores 		BWLC Series - Bellows Clamp Style Couplings - Metric
68514477012
BWLC Series - Bellows Clamp Style Couplings - Metric Bores 		BWLC Series - Bellows Clamp Style Couplings - Metric
68514477010
BWLC Series - Bellows Clamp Style Couplings - Metric Bores 		BWLC Series - Bellows Clamp Style Couplings - Metric
68514477015
BWLC Series - Bellows Clamp Style Couplings - Metric Bores
Description  N/A BWLC63-CP-10MMX20MM N/A BWLC63-CP-20MMX20MM N/A BWLC65-CP-10MMX20MM N/A BWLC65-CP-20MMX22MM N/A BWLC78-CP-15MMX15MM
Bore A N/A 10.00 mm N/A 20.00 mm N/A 10.00 mm N/A 20.00 mm N/A 15.00 mm
Bore B N/A 20.00 mm N/A 20.00 mm N/A 20.00 mm N/A 22.00 mm N/A 15.00 mm
Coupling Size N/A BWLC63 N/A BWLC63 N/A BWLC65 N/A BWLC65 N/A BWLC78
Type N/A Bellows Coupling
Overall Length N/A 2.480 in63.000 mm N/A 2.480 in63.000 mm N/A 2.559 in65.000 mm N/A 2.559 in65.000 mm N/A 3.071 in78 mm
Keyway Size N/A No Keyway
Outside Diameter N/A 1.772 in45 mm N/A 1.772 in45 mm N/A 2.205 in56.00 mm N/A 2.205 in56.00 mm N/A 2.598 in66.00 mm
Min. Bore (Dimensions ID1/ID2) N/A 0.394 in10.00 mm N/A 0.394 in10.00 mm N/A 0.394 in10.00 mm N/A 0.394 in10.00 mm N/A 0.551 in14.00 mm
Max. Bore (Dimensions ID1/ID2) N/A 0.984 in25.00 mm N/A 0.984 in25.00 mm N/A 0.984 in25.00 mm N/A 0.984 in25.00 mm N/A 1.378 in35.00 mm
Length thru Bore N/A 0.472 in12.00 mm N/A 0.472 in12.00 mm N/A 0.591 in15.00 mm N/A 0.591 in15.00 mm N/A 0.768 in19.50 mm
Bellows Material N/A Stainless Steel
Hub Material N/A Aluminum
Style N/A Clamp
Application N/A Motion Control
Connection Type A x B N/A 10 x 20 N/A 20 x 20 N/A 10 x 20 N/A 20 x 22 N/A 15 x 15
Clamp Screw Size N/A M5 N/A M5 N/A M6 N/A M6 N/A M8
Dimension HD N/A 1.772 in45.00 mm N/A 1.772 in45.00 mm N/A N/A N/A
Weight N/A 0.44 oz N/A 0.44 oz N/A 0.66 oz N/A 0.66 oz N/A 1.32 oz
Weight (Complete Coupling w/ Min. Bores) N/A 7.05 oz200.00 g N/A 7.05 oz200.00 g N/A 10.58 oz300.00 g N/A 10.58 oz300.00 g N/A 21.16 oz600.00 g
Max. Operating Temperature N/A 212.00 ºF
Max. Speed N/A 12700.00 rpm N/A 12700.00 rpm N/A 10200.00 rpm N/A 10200.00 rpm N/A 8600.00 rpm
Nominal Torque N/A 159.00 in·lb N/A 159.00 in·lb N/A 266.00 in·lb N/A 266.00 in·lb N/A 531.00 in·lb
Angular Misalignment N/A 1.50 º N/A 1.50 º N/A 1 º N/A 1 º N/A 1 º
Axial Misalignment N/A 0.0200 in N/A 0.0200 in N/A 0.0160 in N/A 0.0160 in N/A 0.0160 in
Parallel Misalignment N/A 0.008 in N/A 0.008 in N/A 0.004 in N/A 0.004 in N/A 0.004 in
Moment of Inertia N/A 0.2730 lb·in² N/A 0.2730 lb·in² N/A 0.5470 lb·in² N/A 0.5470 lb·in² N/A 1.7090 lb·in²
Torsional Stiffness N/A 70800.00 in·lb/rad N/A 70800.00 in·lb/rad N/A 318600.00 in·lb/rad N/A 318600.00 in·lb/rad N/A 646050.00 in·lb/rad
Cubic inches N/A 7.78716 in³ N/A 7.78716 in³ N/A 12.44192 in³ N/A 12.44192 in³ N/A 20.72803 in³