Premium Power transmission couplings
| Bushing Series | N/A |
| Outside Dia. | 13.875 in |
| Bushing Type | N/A |
| Length Through Bore | 4.5 in |
| Bore Size | 2.000 in – 2 in |
| Hub Dia. | 7 1/2 in |
| Bore Range [Min] | 2 in |
| Set Screw | Yes |
| Coupling Size | 14S |
| Hub Length | 1.06 in |
| Bore Type | Rough Stock Bore |
| Bore Range [Max] | 5 in |
| Material | Cast Iron |
| RPM [Max] | 2200 rpm |
| Weight | 69.1 LB |
| EAN or UPC | 697950276137 |
12HS PB
UPC: 697950330372
Martin QUADRA-FLEX ® is a proven design which offers long life, torsional flexibility, ease of installation, and withstands misalignment, shock, and vibration. Available in sizes 3 to 16 in bored to size, QD Bushed, Spacer Type, and Plain Bore for custom requirements.
Material Steel
Coupling Size 12
Outside Diameter 5.7500 in.
Length Thru Bore 2.5313 in.
Bore Type Rough Bore
Finished Bore Size 1.8750 in.
Max Bore Size 2.5000 in.
13HS 2 1/8
UPC: 697950276007
Martin QUADRA-FLEX ® is a proven design which offers long life, torsional flexibility, ease of installation, and withstands misalignment, shock, and vibration. Available in sizes 3 to 16 in bored to size, QD Bushed, Spacer Type, and Plain Bore for custom requirements.
Material Steel
Coupling Size 13
Outside Diameter 6.1250 in.
Length Thru Bore 2.4688 in.
Bore Type Finished Bore
Finished Bore Size 2.1250 in.
Key Way Size 1/2 X 1/4 in.
Number of Set Screws 1
Max Bore Size 2.5000 in.
| RPM [Max] | 3600 rpm |
| Material | Cast Iron |
| Bore Type | Rough Stock Bore |
| Bore Range [Min] | 1.25 in |
| Coupling Size | 11S |
| Bushing Series | N/A |
| Bushing Type | N/A |
| Bore Size | 1.250 in – 1 1/4 in |
| Bore Range [Max] | 2.25 in |
| Hub Length | 1.13 in |
| Weight | 23.14 LB |
| EAN or UPC | 697950275550 |
12SC70-14
UPC: 697950275901
Martin QUADRA-FLEX ® is a proven design which offers long life, torsional flexibility, ease of installation, and withstands misalignment, shock, and vibration. Available in sizes 3 to 16 in bored to size, QD Bushed, Spacer Type, and Plain Bore for custom requirements.
Material Cast Iron
Coupling Size 12
Outside Diameter 10 in.
Length Thru Bore 2.4690 in.
11H 2 3/8
UPC: 697950275512
Martin QUADRA-FLEX ® is a proven design which offers long life, torsional flexibility, ease of installation, and withstands misalignment, shock, and vibration. Available in sizes 3 to 16 in bored to size, QD Bushed, Spacer Type, and Plain Bore for custom requirements.
Material Steel
Coupling Size 11
Outside Diameter 5.2500 in.
Length Thru Bore
2.7188 in.
Bore Type
Finished Bore
Finished Bore Size
2.3750 in.
Key Way Size 5/8 X 5/16 in.
Number of Set Screws 1
Max Bore Size 2.8750 in.
9HS 1 1/8
UPC: 697950277943
Martin QUADRA-FLEX ® is a proven design which offers long life, torsional flexibility, ease of installation, and withstands misalignment, shock, and vibration. Available in sizes 3 to 16 in bored to size, QD Bushed, Spacer Type, and Plain Bore for custom requirements.
Material Steel
Coupling Size 9
Outside Diameter 3.6250 in.
Length Thru Bore 1.5313 in.
Bore Type Finished Bore
Finished Bore Size 1.1250 in.
Key Way Size 1/4 X 1/8 in.
Number of Set Screws 1
Max Bore Size 1.5000 in.
7B-JA
UPC: 697950277141
Martin QUADRA-FLEX ® is a proven design which offers long life, torsional flexibility, ease of installation, and withstands misalignment, shock, and vibration. Available in sizes 3 to 16 in bored to size, QD Bushed, Spacer Type, and Plain Bore for custom requirements.
Material Cast Iron
Coupling Size 7
Outside Diameter 4.6250 in.
Length Thru Bore 1.1560 in.
Max Bore Size 1.1875 in.
6022CHN.
UPC: 697950046617.
Roller chain couplings have a torque capacity in excess of the torque normally transmitted by shafting which falls within the coupling bore range. Select the smallest coupling, which will accommodate both shafts.
For a reversing operation, shock or pulsating loads, or other severe operating conditions, select the next larger coupling size.
A cover should be used to assure maximum service life, particularly if the coupling operates at high speeds or under moist conditions.
For proper lubrication, fill the space between the cover and the coupling with soft to medium consistency coupling grease.
Many finished bore sizes available as well as stock bore blanks that can be altered. Chains, Covers stocked in all branch locations. All stock roller chain couplings have hardened teeth.
Weight 2.72 lb
Covers Fit Taper Bushed, QD and Stock, and Finished Bore Couplings. Covers allow excellent lubrication, and their use is recommended to obtain maximum coupling life. Covers are of aluminum and are made in halves for easy installation.
Synthetic rubber oil seals, which contact the coupling hubs, retain the lubricant and prevent the entry of dirt. Covers are fitted with gaskets between the halves.