Elastomeric couplings have a specific use, it is a coupling that if it fails will keep running, without damage to equipment until it can be replaced it also can only run at up to 2 degrees out of alignment. It is mainly used as its components dont need maintenance and keeps working if its internal insert fails. The “jaws” then clamp together to keep the coupling in motion but that leads to an immediate increase of vibration due to having no insert to absorb that vibration. Made up of 2 hubs (input and output connectors) and internal “spider” to absorb shock and misalignment, which means the more the misalignment the quicker it wears. These elastomeric couplings are used in high speed low torque applications, motors pumps are the main markets.
Couplings
BOSTON GEAR FC-15-1/2 SHAFT COUPLING
Boston Gear FC15 1/2
Couplings
Boston Gear FC20-1 Shaft Coupler Body, Coupling Size FC20, Outside Diameter 2 in, Coupling Overall Length 3 11/16 in, System of Measurement Inch, Hub Material Carbon Steel, Maximum Speed 3,450 RPM, Keyway Depth 1/8 in, Keyway Width 1/4 in, Bore Diameter 1 in, Shaft Locking Type Set Screw, Bore Type Round Bore with Keyway, Jaw Profile Straight, Bore Tolerance +0.001/-0.000 in, Hub Diameter 1 3/4 in
Couplings
Boston Gear FC20-1/2 Jaw coupling hub
RPM [MAX] | 1800 rpm |
LENGTH THROUGH BORE | 1.57 in |
OUTSIDE DIA. | 2 in |
KEYWAY SIZE | 1/8 x 1/16 |
LOCK TYPE | Setscrew |
COUPLING SIZE | FC20 |
MATERIAL | Steel |
HUB DIA. | 1 3/4 in |
WEIGHT | 1.181 LB |
EAN OR UPC | 781711082584 |
Couplings
Boston Gear FC20-15/16 jaw coupling hub
Key Features
- Size - Jaw Couplings FC20
- Keyway Size Type 1/4 in x 1/8 in
- Material - Hubs Steel
- Outside Dia. 2 in
- Assembled Coupling Length 3.69 in
Couplings
Boston Gear FC20-3/4 Shaft Coupler hub
- Product Description
- Steel Jaw Coupling Hubs connect to drive shafts to provide dependable power transfer in high-temperature applications. A complete assembly requires two hubs and one jaw coupling spider, available separately.
Couplings
Boston Gear FC20-5/8
Description
Couplings
Boston Gear FC20-7/8 Jaw coupling hub
Series | : | FC Series |
Coupling Size | : | FC20 |
Bore Diameter | : | 7/8 in |
Hub Diameter | : | 1-3/4 in |
Hub Length | : | 1-1/8 in |
Keyway Size | : | 3/16 x 3/32 in |
Maximum Speed | : | 1750 rpm |
Length Through Bore | : | 1-4/16 in |
Screw Size | : | 5/16-18 |
Material | : | Steel |
Couplings
Boston Gear FC20-9/16 Jaw coupling hub
- Size - Jaw Couplings: FC20
- Keyway Size Type: 1/8 in x 1/16 in
- Material - Hubs: Steel
- Outside Dia.: 2 in
- Assembled Coupling Length: 3.69 in
- Keyway Size: 1/8" x 1/16"
- Overall Length: 3.69 in
Couplings
Boston Gear FC45 2in Steel FC Coupling
PRODUCT DETAILS
- Size FC45 Coupling Hub
- 2" Bore
FEATURES
- No lubricant required
- Complete with keyway and setscrew
- Precision machined
MFR # FC45 2 HALF HUB 08310
Couplings
BOSTON GEAR SSFC12 Jaw Coupling Hub
- Size - Jaw Couplings: SSFC12
- Keyway Size Type: 1/8 in x 1/16 in
- Material - Hubs: Stainless Steel
- Outside Dia.: 1.25 in
- Assembled Coupling Length: 2.31 in
- Overall Length: 2.31 in
- Size: SSFC12
BOSTON GEAR SSFC20 7/8 Jaw Coupling Hub w KW
Boston Gear SSFC20 SOLID Jaw Coupling Hub
Key Features
- Item - Jaw Coupling Hubs: Jaw Coupling Hub
- Size - Jaw Couplings: SSFC20
- Keyway Size Type: None
- Material - Hubs: Stainless Steel
- Outside Dia.: 2 in
- Assembled Coupling Length: 3.69 in
- Material: Stainless Steel
- Overall Length: 3.69 in