F Type Flanged Flexible Jaw Coupling
The F Type Flanged Flexible Jaw Coupling provides bolted flange connection for heavy machinery in four structural variants (A, B, C, D). Torque up to 18,650 N·m, bore to Ø220 mm. B and D types allow radial elastomer replacement without moving connected machinery — critical for high-availability plant.
F Type Flanged Flexible Jaw Coupling
Four structural variants for heavy machinery flange connection — including B and D types that allow in-situ spider replacement without disturbing connected equipment.
Flanged Jaw Coupling for Heavy Industrial Machinery
When direct shaft-to-shaft coupling is not practical — such as when connecting to motor bell housings, gearbox output flanges, or large hydraulic drives — the F Type Flanged Flexible Jaw Coupling provides the bolted flange interface required for heavy machinery applications.
Available in four structural configurations — A, B, C, and D — the F Type covers both shaft-to-flange connections (A and C types) and flange-to-flange connections (B and D types). The B and D variants are specifically designed for installations where both ends of the drive cannot be moved axially, enabling rapid radial spider replacement without disconnecting either the motor or the driven machine.
The elastomeric spider delivers the same torsional flexibility, vibration damping, and zero-lubrication maintenance profile found across the full GBC jaw coupling range. Custom flange patterns, keyways, and bore dimensions are machined to customer specification.
Four Structural Variants Explained
Type A — Flange to Shaft
One hub connects via a bolted flange; the other uses a standard bore-and-keyway shaft connection. Suited for connecting flanged gearboxes or motor outputs to plain shaft driven equipment.
Type B — Double Flange, Radial Access
Both hubs use bolted flange connections. Removing the flange bolts on one side allows the spider to be extracted radially, without moving either connected machine. Preferred for high-availability plant where downtime for axial shaft movement is unacceptable.
Type C — Compact Flange to Shaft
Functionally identical to Type A but with a reduced outer diameter for space-constrained installations where the available coupling guard or housing diameter is limited.
Type D — Compact Double Flange, Custom Option
Double-flange connection with reduced outer diameter. Custom flange patterns can be manufactured to customer specification — particularly useful for non-standard motor frame sizes or proprietary gearbox mounting interfaces.
F Type Series — Technical Specifications
| Model | Nom. Torque (N·m) | Max Speed (rpm) | Bore (mm) | D (mm) | D₀ (mm) | D₁ (mm) | D₃ (mm) | E (mm) | Bolts |
|---|---|---|---|---|---|---|---|---|---|
| TS24F | 35 | 14000 | 8–35 | 55 | 80 | 40 | 55 | 18 | 8–M5 |
| TS28F | 95 | 11800 | 10–40 | 65 | 100 | 48 | 65 | 20 | 8–M6 |
| TS38F | 190 | 9500 | 12–48 | 80 | 115 | 66 | 78 | 24 | 8–M8 |
| TS42F | 265 | 8000 | 14–55 | 95 | 140 | 75 | 94 | 26 | 12–M8 |
| TS48F | 310 | 7100 | 15–60 | 105 | 150 | 85 | 104 | 28 | 12–M8 |
| TS55F | 410 | 6300 | 20–70 | 120 | 175 | 98 | 118 | 30 | 8–M10 |
| TS65F | 625 | 5600 | 22–75 | 135 | 190 | 115 | 134 | 35 | 12–M10 |
| TS75F | 1280 | 4750 | 30–90 | 160 | 215 | 135 | 158 | 40 | 15–M12 |
| TS90F | 2400 | 3750 | 40–100 | 200 | 260 | 160 | 180 | 45 | 15–M16 |
| TS100F | 3300 | 3350 | 50–110 | 225 | 285 | 180 | 200 | 50 | 15–M16 |
| TS110F | 4800 | 3000 | 60–125 | 255 | 330 | 200 | 230 | 55 | 15–M20 |
| TS125F | 6650 | 2650 | 60–145 | 290 | 370 | 230 | 265 | 60 | 15–M20 |
| TS140F | 8600 | 2360 | 60–165 | 320 | 410 | 256 | 300 | 65 | 15–M20 |
| TS160F | 12800 | 2000 | 80–190 | 370 | 460 | 290 | 345 | 75 | 15–M24 |
| TS180F | 18650 | 1800 | 85–220 | 420 | 520 | 325 | 400 | 85 | 18–M24 |
Customer Reviews & Case Studies
🇦🇺 Australia — Mineral Processing
A copper concentrator plant in South Australia installed TS125F Type-B couplings on four ball mill drive gearboxes. The radial spider replacement feature reduced planned maintenance downtime from 6 hours to under 90 minutes per coupling — saving over 18 hours of mill production time per annual shutdown cycle.
★★★★★
"Radial spider swap in 90 minutes versus half a day. The B Type paid for itself in one shutdown."
🇩🇪 Germany — Industrial Gearbox OEM
A gearbox manufacturer in Bavaria specified TS55F and TS65F couplings as standard equipment on their helical-bevel gearbox range for cement mixing applications. The flanged connection interface simplified integration with customer-supplied motor bell housings, and the elastomeric spider isolated high starting torques from the gearbox input shaft bearings.
★★★★★
"Clean flange interface and reliable damping. Our customers are happy, which means we're happy."
🇮🇳 India — Cement Production
A cement plant in Rajasthan fitted TS140F Type-D couplings on kiln drive auxiliaries where the available coupling guard diameter limited use of standard F Type flanges. The compact D Type outer diameter fit within the existing guard without modification across eight drive positions.
★★★★☆
"The D Type solved a space problem that had been holding up the project for weeks."
🇦🇺 Australia — Water Infrastructure
A metropolitan water authority in Victoria specified TS90F Type-A couplings for vertical turbine pump installations at a new pumping station. The flanged hub provided positive axial retention and the elastomeric spider isolated pump pulsation from the building structure — resolving a noise emissions compliance issue.
★★★★★
"Met the noise permit conditions that two previous coupling designs had failed. Excellent result."
Frequently Asked Questions
For installations requiring both single and double flange connections with the fastest possible spider replacement, also review the SF Type Single Flanged and DF Type Double Flanged Jaw Couplings for complementary configuration options across the same torque range.
Specifying F Type Flanged Jaw Couplings for Your Project?
GBC supplies F Type flanged flexible jaw couplings in A, B, C, and D configurations to plant engineers, OEM builders, and procurement teams across Australia and internationally. Submit your torque, bore, and flange pattern requirements — technical response within one business day.
The F Type Flanged Flexible Jaw Coupling provides bolted flange connection for heavy machinery in four structural variants (A, B, C, D). Torque up to 18,650 N·m, bore to Ø220 mm. B and D types allow radial elastomer replacement without moving connected machinery — critical for high-availability plant.
