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Half Couplings

Poly Flex steel half couplings, coupling spacers and custom cotton reel adaptors are all CNC machined and designed in our facility, they are a steel mating component which is used between the gearbox and the output shaft, with or without a flexible coupling.

Adapter plates and cotton reel adaptors are available on request.

Metal components are plated in SA5 cobalt zinc for maximum corrosion resistance and durability.

Parallel Clamp Steel Half Couplings

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ModelFlange ODPCDBolt Hole ClearanceSpigot DiameterSpigot Type & DepthShaft SizeBody LengthBoss DiameterWeight kg
424101.6mm78mm4 x 11mm50mmMale 2.4mm16 - 38mm : 5/8 - 1 1/2"89.5mm70.9mm2.4
4344"3 1/4"4 x 10.5mm2 1/2"Male 2.6mm16 - 38mm 5/8 - 1 1/2"89.5mm70.9mm2.4
434F4"3 1/4"4 x 10.5mm2 1/2"Female 3.8mm16 - 38mm 5/8 - 1 1/2"89.5mm70.9mm2.3
434P4"3 1/4"4 x 10.5mm2 5/8"Female 3.8mm16 - 38mm 5/8 - 1 1/2"89.5mm70.9mm2.3
464101.6mm80mm4 x 10.5mm60mmFemale 3.8mm16 - 38mm 5/8 - 1 1/2"89.5mm70.9mm2.3
494101.6mm74.5mm4 x 8.5mm47mmFemale 3.8mm16 - 38mm 5/8 - 1 1/2"89.5mm70.9mm2.4
5245"4 1/4"4 x 11.5mm2 1/2"Male 3.5mm22 - 50mm 7/8 - 2"93.5mm80mm3.6
5285.24"4 1/4"8 x 11.5mm2 1/2"Male 3.5mm22 - 50mm 7/8 - 2"93.5mm80mm3.7
534127mm100mm4 x 10.5mm65mmMale 3.5mm22 - 50mm 7/8 - 2"93.5mm80mm3.6
5464 3/4"3 7/8"6 x 11.5mm2 1/2"Female 4.5mm22 - 63mm 7/8 - 2 1/2"116.1mm95mm5
616 1/2" A6"4 3/4"6 x 13mm3"Male 5mm38.1 - 76mm 1 1/2 - 3"135.3mm119.5mm9.1
616 1/2" B6"4 3/4"6 x 13mm3"Female 5.7mm38.1 - 76mm 1 1/2 - 3"135.3mm119.5mm9.1
616 5/8"6"4 3/4"6 x 16.5mm3"Female 5.7mm38.1 - 76mm 1 1/2 - 3"135.3mm119.5mm9.1

Pilot Bored Steel Half Couplings

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ModelFlange ODPCDBolt Hole ClearanceSpigot DiameterSpigot Type & DepthShaft SizeBody LengthBoss DiameterWeight kg
424101.6mm78mm4 x 11mm50mmMale 2.4mm16 - 38mm 5/8 - 1 1/2"89.5mm70.9mm2.6
4344"3 1/4"4 x 10.5mm2 1/2"Male 2.6mm16 - 38mm 5/8 - 1 1/2"89.5mm70.9mm2.7
464101.6mm80mm4 x 10.5mm60mmFemale 3.8mm16 - 38mm 5/8 - 1 1/2"89.5mm70.9mm2.5
5245"4 1/4"4 x 11.5mm2 1/2"Male 3.5mm22 - 50mm 7/8 - 2"93.5mm80mm3.9
5285"4 1/4"8 x 11.5mm2 1/2"Male 3.5mm22 - 50mm 7/8 - 2"93.5mm80mm3.9
534127mm100mm4 x 10.5mm65mmMale 3.5mm22 - 50mm 7/8 - 2"93.5mm80mm4.1
5464 3/4"3 7/8"6 x 11.5mm2 1/2"Female 4.5mm22 - 63mm 7/8 - 2 1/2"116.1mm95mm5.4
616 1/2" A6"4 3/4"6 x 13mm3"Male 5mm25 - 76mm 1 - 3"135.3mm119.5mm9.9
616 1/2" B6"4 3/4"6 x 13mm3"Female 5.7mm25 - 76mm 1 - 3"135.3mm119.5mm9.9
616 5/8"6"4 3/4"6 x 16.5mm3"Female 5.7mm25 - 76mm 1 - 3"135.3mm119.5mm9.9

Taper Lock Steel Half Couplings

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ModelFlange ODPCDBolt Hole ClearanceSpigot DiameterSpigot Type & DepthShaft SizeBody LengthBoss DiameterWeight kg
424101.6mm78mm4 x 11mm50mmMale 2.4mm16 - 31.75mm 5/8 - 1 1/4"76.5mm65mm1.6
4344"3 1/4"4 x 10.5mm2 1/2"Male 2.6mm16 - 31.75mm 5/8 - 1 1/4"76.5mm65mm1.6
464101.6mm80mm4 x 10.5mm60mmFemale 3.8mm16 - 31.75mm 5/8 - 1 1/4"76.5mm65mm1.5
5245"4 1/4"4 x 11.5mm2 1/2"Male 3.5mm22 - 44.45mm 7/8 - 1 3/4"90.6mm80mm3.2
534127mm100mm4 x 10.5mm65mmMale 3.5mm22 - 44.45mm 7/8 - 1 3/4"90.6mm80mm3.3

Custom Parallel Clamp Steel Half Couplings

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ModelFlange ODPCDBolt Hole ClearanceSpigot DiameterSpigot Type & DepthShaft SizeBody LengthBoss DiameterWeight kg
4" SB4"As RequiredAs RequiredAs RequiredAs Required16 - 38mm 5/8 - 1 1/2"89.5mm70.9mm2.6
5" SB5"As RequiredAs RequiredAs RequiredAs Required16 - 38mm 5/8 - 1 1/2"89.5mm70.9mm3.4
6" SB6"As RequiredAs RequiredAs RequiredAs Required16 - 38mm 5/8 - 1 1/2"89.5mm70.9mm4.2
5" MB5"As RequiredAs RequiredAs RequiredAs Required22 - 50mm 7/8 - 2"93.5mm80mm3.9
6" MB6"As RequiredAs RequiredAs RequiredAs Required22 - 50mm 7/8 - 2"93.5mm80mm5.1
5" LB5"As RequiredAs RequiredAs RequiredAs Required22 - 63mm 7/8 - 2 1/2"116.1mm95mm5.6
6" LB6"As RequiredAs RequiredAs RequiredAs Required22 - 63mm 7/8 - 2 1/2"116.1mm95mm6.9
6" XLB6"As RequiredAs RequiredAs RequiredAs Required38.1 - 76mm 1 1/2" - 3"135.3mm119.5mm10.1
7" XLB7"As RequiredAs RequiredAs RequiredAs Required38.1 - 76mm 1 1/2" - 3"135.3mm119.5mm
8" XLB8"As RequiredAs RequiredAs RequiredAs Required38.1 - 76mm 1 1/2" - 3"135.3mm119.5mm
9" XLB9"As RequiredAs RequiredAs RequiredAs Required38.1 - 76mm 1 1/2" - 3"135.3mm119.5mm

Custom Pilot Bored Steel Half Couplings

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ModelFlange ODPCDBolt Hole ClearanceSpigot DiameterSpigot Type & DepthShaft SizeBody LengthBoss DiameterWeight kg
4" SB4"As RequiredAs RequiredAs RequiredAs Required16 - 38mm 5/8 - 1 1/2"89.5mm70.9mm2.6
5" SB5"As RequiredAs RequiredAs RequiredAs Required16 - 38mm 5/8 - 1 1/2"89.5mm70.9mm3.4
6" SB6"As RequiredAs RequiredAs RequiredAs Required16 - 38mm 5/8 - 1 1/2"89.5mm70.9mm4.2
5" MB5"As RequiredAs RequiredAs RequiredAs Required22 - 50mm 7/8 - 2"93.5mm80mm3.9
6" MB6"As RequiredAs RequiredAs RequiredAs Required22 - 50mm 7/8 - 2"93.5mm80mm5.1
5" LB5"As RequiredAs RequiredAs RequiredAs Required22 - 63mm 7/8 - 2 1/2"116.1mm95mm5.6
6" LB6"As RequiredAs RequiredAs RequiredAs Required22 - 63mm 7/8 - 2 1/2"116.1mm95mm6.9
6" XLB6"As RequiredAs RequiredAs RequiredAs Required38.1 - 76mm 1 1/2" - 3"135.3mm119.5mm10.1
7" XLB7"As RequiredAs RequiredAs RequiredAs Required38.1 - 76mm 1 1/2" - 3"135.3mm119.5mm
8" XLB8"As RequiredAs RequiredAs RequiredAs Required38.1 - 76mm 1 1/2" - 3"135.3mm119.5mm
9" XLB9"As RequiredAs RequiredAs RequiredAs Required38.1 - 76mm 1 1/2" - 3"135.3mm119.5mm

Custom Taper Lock Steel Half Couplings

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ModelFlange ODPCDBolt Hole ClearanceSpigot DiameterSpigot Type & DepthShaft SizeBody LengthBoss DiameterWeight kg
4" TL4"As RequiredAs RequiredAs RequiredAs Required16 - 31.75mm 5/8 - 1 1/4"76.5mm65mm1.7
5" TL5"As RequiredAs RequiredAs RequiredAs Required22 - 44.45mm 7/8 - 1 3/4"90.6mm80mm

Steel Shaft Coupling Spacers

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ModelFlange OD (G)PCD (F)Bolt Hole ClearanceSpigot Diameter (E)Spigot Type & DepthThickness (A)Weight kg
424101.6mm78mm4 x 11mm50mmMale 2.6mm Female 5mm30mm1.5
4344"3 1/4"4 x 10.5mm2 1/2"Male 2.6mm Female 5mm30mm1.5
464101.6mm80mm4 x 10.5mm60mmFemale 5mm Male 2.8mm30mm1.5
5245"4 1/4"4 x 11.5mm2 1/2"Male 3mm Female 5mm38mm3
534127mm100mm4 x 10.5mm65mmMale 3mm Female 5mm38mm3

Custom Steel Shaft Coupling Spacers

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ModelFlange OD (G)PCD (F)Bolt Hole ClearanceSpigot Diameter (E)Spigot Type & DepthThickness (A)Weight kg
4" CSP4"As RequiredAs RequiredAs RequiredAs Required30 mm1.8
5" CSP5"As RequiredAs RequiredAs RequiredAs Required38mm3.7
6" CSP6"As RequiredAs RequiredAs RequiredAs Required38mm
7" CSP6"As RequiredAs RequiredAs RequiredAs RequiredAs Required
8" CSP6"As RequiredAs RequiredAs RequiredAs RequiredAs Required
9" CSP6"As RequiredAs RequiredAs RequiredAs RequiredAs Required

Steel Shaft Coupling Adaptor

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ModelFlange OD (G)PCD Gearbox Shaft SideBolt Hole Clearance Gearbox Shaft SideSpigot Diameter Gearbox Shaft SideSpigot Type & Depth Gearbox Shaft SideThickness (A)Weight kg
434 to 4244" (101.6mm)3 1/4" 78mm4 x 10.5mm 4 x 11mm2 1/2" 50mmMale 2.6mm Female 5mm15mm
434 to 4644" (101.6mm)3 1/4" 80mm4 x 10.5mm 4 x 10.5mm2 1/2" 60mmMale 2.6mm Male 2.8mm15mm

Custom Cotton Reel Adaptors