Patented Heavy Duty Cushion Coupling providing limited predetermined rotational travel whilst carrying a MASSIVE 1900 NM (1400 ft/lbs) of Torque. Danish Super Valve Spring Quality drive springs combined with 1 piece heat treated Drive and Driven Plates provide ultimate reliability. Designed for LARGE Multihead Cutters with Timed Blades which preclude the use of safety slip clutches. Without the Bare-Co® Heavy Duty Cushion Coupling, these machines can suffer outer gearbox coupling & shaft failures due to the flywheel effect of associated cutter disks being combined with tractor PTO torque.
1 3/8" x 6 Spline Couplings
PART No.	Diameter	Overall Length	Dimension		Rotation	Description
			"A"	"B"
B6507	8" dia (200mm)	8" (200mm)	4.9" (125mm)	NA	Anti-Clockwise	1 3/8" x 6 spline female - male
B6506					Clockwise	1 3/8" x 6 spline female - male
B6505		6 3/4" (171mm) to... 9 3/4" (248mm) [can be cut to length by the user]	8.46" (215mm)	5.5" (140mm)	Anti-Clockwise	1 3/8" x 6 spline female - female
B6504					Clockwise	1 3/8" x 6 spline female - female
1 3/4" x 20 Spline Couplings
B6503	8" dia (200mm	8" (200mm)	5.9" (150mm)	NA	Anti-Clockwise	1 3/4" x 20 splines female - male
B6502					Clockwise	1 3/4" x 20 splines female - male
B6501		6 3/4" (171mm) to... 9 3/4" (248mm) [can be cut to length by the user]	8.46" (215mm)	5.5" (140mm)	Anti-Clockwise	1 3/4" x 20 splines female - female
B6500					Clockwise	1 3/4" x 20 splines female - female

FEATURES

Replaces light duty rubber couplings Radial springs absorb shocks with radial travel limited to 1/2 " (12mm) to suit timed shaft applications (Rotary cutters with overlapping timed blades)

MALE COUPLER - SPARE PARTS

REF. No.	PART No.	DESCRIPTION
1	B3728	Cotter Bolt - Fits 1 3/4" x 20 Spline couplings with Single Cotter Bolt.
2	B6531	Base 1 3/8" x 6 Spline
	B6532	Base 1 3/4" x 20 Spline
3	B6523	Spacing Collar
4	B6524	Outer Spider Plate
5	B3727	Drive Spring - 8 Required
6	B6527	Inner Spider 1 3/8" x 6 Spline Male - Clockwise
	B6536	Inner Spider 1 3/8" x 6 Spline Male - Anticlockwise
	B6528	Inner Spider 1 3/4" x 20 Spline Male - Clockwise
	B6537	Inner Spider 1 3/4" x 20 Spline Male - Anticlockwise
7	B503	Bearing - fits 1 3/8" and 1 3/4" Spiders
8	B6534	Bearing Housing

FEMALE COUPLER - SPARE PARTS

REF. No.	PART No.	DESCRIPTION
1	B3728	Cotter Bolt - Fits 1 3/4" x 20 Spline couplings with Single Cotter Bolt.
2	B6521	Base 1 3/8" x 6 Spline
	B6522	Base 1 3/4" x 20 Spline
2A	B6529	Freewheel Base 1 3/8" x 6 Spline Anticlockwise
	B6530	Freewheel Base 1 3/8" x 6 Spline Clockwise
3	B6523	Spacing Collar
4	B6524	Outer Spider Plate
5	B3727	Drive Spring - 8 Required
6	B6525	Inner Spider 1 3/8" x 6 Spline Female - Clockwise
	B6538	Inner Spider 1 3/8" x 6 Spline Female - Anticlockwise
	B6526	Inner Spider 1 3/4" x 20 Spline Female - Clockwise
	B6539	Inner Spider 1 3/4" x 20 Spline Female - Anticlockwise
7	B503	Bearing - fits 1 3/8" x 6 Spline Spider
	B2881	Bearing - fits 1 3/4" x 20 Spline Spider
8	B6534	Bearing Housing - fits 1 3/8" x 6 Spline Spider
	B6535	Bearing Housing - fits 1 3/4" x 20 Spline Spider