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There are numerous coupling solutions on the market, Universal Joints, Beam couplings, bellows coupling, L Jaw type  and Elastomeric couplings.

The origins of couplings goes back to the middle ages, the first demonstrated coupling product was by Robert Hooke in 1683, the Hooke joint as it was known has today become the widely used universal joint. This makes the universal joint the oldest coupling on the market today, it is manufactured by thousands of companies around the world, but the design flaws of the universal joint are the same in every one of them.

All claim they are the best but the technology is the same across the different manufacturers. Each have their advantages in different applications and even the advantage can also come with its own issues, for example a conveyor needs to be able to handle a certain amount of misalignment but universal joint with its increased maintenance of bearings and yokes may make the change uneconomical.

The cost of a mechanical coupling unit may be cheap but when adding the lifetime ROI can turn into being very expensive, constant greasing, constant replacing of worn bearings, constant replacement of urethane spiders in L jaw couplings. These component costs in addition to labor costs turns a cheap coupling into an mechanical coupling with a low ROI

Huco 723.51.4747

Six Beam Coupling, Clamp, Relieved, 51mm OD, 3/4in. x 3/4in. Bores

These general purpose, multi-beam couplings will readily accommodate any combination of axial motion and angular & parallel misalignment but should be used with caution if low bearing loads are desirable.

Couplings, Collars & Universal Joiners

KOP-FLEX 2274645 1090 HUBXQ Grid Coupling Hub

KOP-FLEX 2274645 1090 HUBXQ Grid Coupling Hub 2274645 Grid Coupling Hub - 1090 Coupling Size Code, Carbon Steel Hub Material, Split Taper Bushed Bore, 0 to 2.6880 in Bore Diameter, 3.8800 in Length Through Bore

Lovejoy 1080 SPACER HUB S=3.469

Specifications
Description 
1080 SPACER HUB S=3.469W/HDW
Type
Grid Coupling
Hub Material
Alloy Steel
Color
Gray/Metallic
Bore Type
No Bore
Weight
21.01 lb

Lovejoy ‎BWC41 3/8x3/8 Bellows Coupling

Item Motion Control Coupling
Bore Dia. 3/8 x 3/8"
Hub Dia. 1.26"
Length through Bore 14 mm
Material Aluminum Hubs, Stainless Steel Bellows
Max. Angular Misalignment 1.2 Degrees
Max. Axial Misalignment (In.) +/-0.012
Max. Bore 16.00 mm
Max. Bore 0.63
Max. Parallel Misalignment (In.) 0.004
Max. RPM 15,000
Max. Temp. Range (F) 212
Min. Bore 6 mm
Outside Dia. 32 mm
Overall Length 41mm
Screw Size M4 mm
Screw Type Clamp Screw
Size BWC41
Style Bellows Clamp
Torque 39.83 In.Lbs.

Shipping Information

Height (cm) 3.81
Length (cm) 7.62
Width (cm) 3.81
HS Code 8483908040
Country Of Origin DE
Weight (kg) 0.07
UPC 685144773906

Twin Spring Coupling

Lovejoy L-225 jaw coupling replacement Hytrel Bronze jaw coupling alternative with the TSC500 T6061 T6 Aluminum alternative. A no maintenance, spider free alternative. Capable of speeds up to 7000 rpm. Flexible to 25° verses the 1/2° with the Hytrel Bronze jaw coupling spider inserts. Able to handle 6000 in lbs./495Kw @ 7000 rpm torque. Replace Lovejoy, Ruland, Guardian Couplings, TB Woods, KTR, SKF, Boston Gear, SIT, Martin and all other jaw coupling manufacturers.

For more information and pricing, contact us at Quotation request

Contact our State Sales Agents  or one of these distributors

Lovejoy U137R 5/8 x 1 1/2

Lovejoy 68514476563 Specifications
Description 
U137R 5/8 KW*SSX1-1/2NKW NSS
Hub Style
Regular
Type
Shaft-to-Shaft
Material
Steel
Weight
4.72 lb
Color
Gray/Metallic
Bore Type
Finished Bore

Lovejoy UF-100 Dropout

Lovejoy 68514413938 Specifications
Description 
UF100 DROP OUT
Hub Style
Drop Out
Coupling Type
Flange-to-Flange
Material
Steel
Color
Gray/Metallic
# of Mounting Screws Required
3
Weight
2.10 lb
  • Drop-out section for RRU-type Uniflex coupling and flange-to-flange flexible coupling
  • Steel for strength and durability
  • Accommodates angular and parallel misalignment
  • Rotational speeds up to 30,000 rpm
  • Set screw and key way for secure attachment to shaft

Lovejoy UF-125 Dropout

Lovejoy 68514413942 Specifications
Description 
UF125 DROP OUT
Hub Style
Drop Out
Coupling Type
Flange-to-Flange
Material
Steel
Color
Gray/Metallic
# of Mounting Screws Required
3
Weight
3.20 lb

Ruland BS21-10-10-A Ruland bellows couplings are zero-backlash, torsionally stiff, and have a balanced design. They are made from black anodized aluminum hubs and stainless steel bellows to offer superior performance in precision servo applications. The stainless steel bellows are ideal for transmitting torque due to their thin walls allowing the coupling to easily flex while [...]

Specification: Item - Oldham Coupling Discs: Oldham Coupling Disc Fits Hub Outside Dia.: 1.313" / 33.3mm Material - Discs: Acetal Rated Torque: 70 in.-lb. Max. RPM: 4500Torsional Stiffness (Deg./In.-Lbs.): 0.009 Max. Angular Misalignment: 0.5 Degrees Max. Parallel Misalignment (In.): 0.008 Max. Axial Misalignment (In.): +/-.006 Max. Temp. Range (F): 150 Finish: Plain Disc Type: Acetal

TB Woods 1060T158

1060T X 1-5/8" G-Flex Grid Coupling Hub

Model: 1060T158
TB Wood’s Taper Grid Coupling is the industry standard, state-of-the-art design from TB Wood’s and Bibby Turboflex, the original grid coupling manufacturer. The G-Flex 1000 / Bibby 2000 Series is an all-metal coupling that provides positive protection against the damaging effects of shock loads and vibration. Aluminum horizontal cover (T10), and all-steel vertical cover (T20) designs are available. G-Flex tapered grid couplings are an excellent choice where torsional flexibility and vibration damping are primary concerns.

Couplings, Collars & Universal Joiners

TB Woods 1060T1716

TB Woods 1060T1716

1060T X 1-7/16 G-Flex Grid Coupling Hub
Model: 1060T1716
TB Wood’s Taper Grid Coupling is the industry standard, state-of-the-art design from TB Wood’s and Bibby Turboflex, the original grid coupling manufacturer. The G-Flex 1000 / Bibby 2000 Series is an all-metal coupling that provides positive protection against the damaging effects of shock loads and vibration. Aluminum horizontal cover (T10), and all-steel vertical cover (T20) designs are available. G-Flex tapered grid couplings are an excellent choice where torsional flexibility and vibration damping are primary concerns.