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Coupling
Jaw Coupling
Curved-jaw couplings with a polyurethane star spider, from compact L-type to heavy XL/GR clamp hubs. Interchangeable with the common GR, L, HRC and pump-coupling sizes.
Specifications
- Nominal torque
- 4.5 – 12,000 N·m
- Bore range
- 5 – 130 mm
- Elastomer
- Polyurethane spider, 92 ShA, 98 ShA or 64 ShD
- Hub fixing
- Keyway, clamp, taper bush, expansion sleeve or flange
Description
A jaw coupling joins two hubs through an elastomer spider that sits between their claws. The spider damps shock and vibration and absorbs small radial, angular and axial misalignment, and it is the only wearing part. Choose the hub style by how it fixes to the shaft: keyed bore, clamp screws, taper bush, expansion sleeve or a bolted flange.
Features
- Spider damps shock and vibration between motor and load
- Absorbs radial, angular and axial misalignment
- Fail-safe: the jaws keep driving if the spider wears
- Only the spider wears, and it is replaced without new hubs
- GR, L, HRC and pump-coupling sizes for existing machines
Applications
- Pumps and compressors
- Fans and blowers
- Gear reducers
- Machine tools
- Conveyors
- Hydraulic power units
Series in this range
15 series · dimension tables on request
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XL/GR
Star coupling, keyed hubs
Standard curved-jaw coupling in GR sizes, XL0–XL12 (GR14–GR110).
- 16 – 9,000 N·m
- Bores 8 – 125 mm
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XL/GR-C
Star coupling, clamp hubs
Clamp-screw hubs grip the shaft with no keyway play.
- 21 – 9,000 N·m
- Bores 8 – 125 mm
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XL/GR-E
Expansion-sleeve star coupling
Internal expansion sleeve for keyless, backlash-free locking.
- 21 – 3,600 N·m
- Bores 10 – 105 mm
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XL/GR-TB
Taper-bush star coupling
Fits standard taper bushes 1008 – 4545 for quick bore changes.
- 75 – 9,000 N·m
- Bores 10 – 110 mm
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XL/GR-F
Flange-type star coupling
Bolted flange hub so the spider can be changed without moving the machines.
- 75 – 9,000 N·m
- Bores 10 – 130 mm
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XL-S
Split clamp star coupling
Forged steel hubs with double clamp screws plus keyway.
- Up to 7,200 N·m max
- Bores to 110 mm
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XL-D
Separable clamp star coupling
Separable clamp hubs for keyed shafts on machine tools and heavy conveyors.
- Up to 12,000 N·m max
- Bores to 120 mm
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CR
CR jaw coupling
Curved-jaw coupling CR050 – CR90100 with matching spiders.
- Bores 5 – 110 mm
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L
L-type three-jaw coupling
Compact three-jaw coupling with steel or aluminium hubs, L035 – L275.
- 4.5 – 397 N·m
- Bores to 75 mm
-
HRC
HRC coupling
Cast hubs in B (bored), F and H (taper bush) styles, HRC070 – HRC280.
- 31 – 3,150 N·m
- Bores to 115 mm
-
OMT-ND
Aluminium pump coupling
Light aluminium hubs with polyurethane insert, ND48 – ND143, for motor–pump sets.
- Motor bores 11 – 75 mm
-
GR
GR star spider
Replacement spiders GR19 – GR110 in three hardness grades.
- 7.5 – 9,000 N·m
-
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R
R polyurethane spider
Replacement inserts R42 – R103 for aluminium pump couplings.
Ask for price and size: R polyurethane spider -
T
T hexagonal pad
Six- and eight-lobe pads T75 – T210 in PU, rubber or FKM.
Ask for price and size: T hexagonal pad
Jaw Coupling: common questions
Where is Jaw Coupling used?
Pumps and compressors; Fans and blowers; Gear reducers; Machine tools; Conveyors; Hydraulic power units.
What do you need to quote Jaw Coupling?
Size or dimensions (or a drawing); Operating pressure and temperature; Medium and operating conditions; Quantity and delivery location.
Who supplies Jaw Coupling in Indonesia?
PT Misuba Guna Indonesia supplies Jaw Coupling to industrial plants across Indonesia from its base in Tangerang, Banten. Send your operating conditions and quantity to sales@misubaguna.com or WhatsApp +62 811-8715-671 for a quotation.
Need a price, sizing or a drawing for Jaw Coupling?
Send your operating conditions and quantity. Our sales team will check the details and quote.