Double Universal Joints
Description
Double universal joints are mechanical components designed to transmit rotational motion between two shafts that are not in a straight line. They consist of two universal joints connected in series, allowing for greater flexibility in the alignment of the shafts.
Working Principle
Double universal joints work by using two single universal joints connected by an intermediate shaft. This configuration helps to cancel out the angular velocity fluctuations that occur in a single universal joint, providing a more constant velocity output. The double universal joint is particularly useful in applications where the shafts are misaligned or need to accommodate angular displacement, as it allows for smoother transmission of motion and reduces the stress on the connected components.
Applications
While specific applications are not detailed in the provided documents, double universal joints are typically used in situations where there is a need to transmit power between misaligned shafts. They are commonly found in automotive driveshafts, industrial machinery, and other mechanical systems requiring flexible coupling between components.
Advantages over other Universal Joints
Double universal joints offer the advantage of providing a more constant velocity output compared to single universal joints. This is due to their ability to cancel out the angular velocity fluctuations inherent in single universal joints, making them more suitable for applications requiring precise motion control.
Limitations
The limitations of double universal joints are not explicitly detailed in the provided documents. However, it is generally understood that they may have limitations in terms of the maximum angle of misalignment they can accommodate and the complexity of their design compared to single universal joints.
Considerations
When considering the use of double universal joints, factors such as initial costs, operating expenses, durability, accuracy, and maintenance costs should be taken into account. Double universal joints may have higher initial costs due to their more complex design. However, their ability to provide smoother and more accurate motion transmission can lead to reduced wear and maintenance costs over time. Durability and accuracy are enhanced by their design, which minimizes velocity fluctuations and reduces stress on the connected components.
from Stock Drive Products & Sterling Instrument - SDP/SI
Couplings Types. Couplings can be divided into two categories: flexible and rigid. Both types are used to connect two rotating shafts driven by a motor and transmit torque and angular velocity; however, flexible couplings and shafts are designed to accommodate angular misalignment, angular offset,... [See More]
- Joint Type: Double
- OAL: 1.50
- Hub O.D.: 0.19
- Bore: 0.094
from Hangzhou Chinabase Machinery Co., Ltd.
Max.speed: ≤4000RPM. Static breaking torque: ≤2500 N.m. Max.working angle 45 ° [See More]
- Joint Type: Double
- Hub O.D.: 1.26 to 2.36
- Hub Bore: Round; Keyed; Hex; Square
- Bore: 0.630 to 1.378
from RS Components, Ltd.
JOINT [See More]
- Joint Type:
- Material: Aluminium
- OAL: 1.57
from Stock Drive Products & Sterling Instrument - SDP/SI
Couplings Types. Couplings can be divided into two categories: flexible and rigid. Both types are used to connect two rotating shafts driven by a motor and transmit torque and angular velocity; however, flexible couplings and shafts are designed to accommodate angular misalignment, angular offset,... [See More]
- Joint Type: Double
- OAL: 2.12
- Hub O.D.: 0.38
- Bore: 0.188
from Hangzhou Chinabase Machinery Co., Ltd.
Max.speed: ≤3000RPM. Static breaking torque: ≤3000 N.m. Max.working angle 45 ° [See More]
- Joint Type: Double
- Hub O.D.: 0.98 to 2.36
- Hub Bore: Round; Keyed; Hex; Square
- Bore: 0.551 to 1.378
from RS Components, Ltd.
JOINT [See More]
- Joint Type:
- Material: Die Cast Aluminium
- OAL: 1.57
from Stock Drive Products & Sterling Instrument - SDP/SI
Couplings Types. Couplings can be divided into two categories: flexible and rigid. Both types are used to connect two rotating shafts driven by a motor and transmit torque and angular velocity; however, flexible couplings and shafts are designed to accommodate angular misalignment, angular offset,... [See More]
- Joint Type: Double
- OAL: 1.06
- Hub O.D.: 0.25
- Bore: 0.125
from Hangzhou Chinabase Machinery Co., Ltd.
Max.speed: ≤1000RPM. Static breaking torque: ≤5000N.m. Max.working angle 45 ° [See More]
- Joint Type: Double
- Hub O.D.: 0.79 to 3.74
- Hub Bore: Round; Keyed; Hex; Square
- Bore: 0.394 to 1.969
from RS Components, Ltd.
JOINT [See More]
- Joint Type:
- Material: Die Cast Aluminium
- OAL: 1.77
from Stock Drive Products & Sterling Instrument - SDP/SI
Couplings Types. Couplings can be divided into two categories: flexible and rigid. Both types are used to connect two rotating shafts driven by a motor and transmit torque and angular velocity; however, flexible couplings and shafts are designed to accommodate angular misalignment, angular offset,... [See More]
- Joint Type: Double
- OAL: 1.50
- Hub O.D.: 0.19
- Bore: 0.098
from Hangzhou Chinabase Machinery Co., Ltd.
Max.speed: ≤1500RPM. Static breaking torque: ≤1500N.m. Max.working angle 45 ° [See More]
- Joint Type: Double
- Hub O.D.: 0.63 to 1.97
- Hub Bore: Round; Keyed; Hex; Square
- Bore: 0.315 to 1.181
from RS Components, Ltd.
JOINT [See More]
- Joint Type:
- Material: Die Cast Aluminium
- OAL: 1.77
from Stock Drive Products & Sterling Instrument - SDP/SI
Couplings Types. Couplings can be divided into two categories: flexible and rigid. Both types are used to connect two rotating shafts driven by a motor and transmit torque and angular velocity; however, flexible couplings and shafts are designed to accommodate angular misalignment, angular offset,... [See More]
- Joint Type: Double
- OAL: 1.06
- Hub O.D.: 0.25
- Bore: 0.118
from RS Components, Ltd.
JOINT [See More]
- Joint Type:
- Material: Die Cast Aluminium
- OAL: 1.77
from Stock Drive Products & Sterling Instrument - SDP/SI
Couplings Types. Couplings can be divided into two categories: flexible and rigid. Both types are used to connect two rotating shafts driven by a motor and transmit torque and angular velocity; however, flexible couplings and shafts are designed to accommodate angular misalignment, angular offset,... [See More]
- Joint Type: Double
- OAL: 4.00
- Hub O.D.: 0.50
- Bore: 0.000
from RS Components, Ltd.
JOINT [See More]
- Joint Type:
- Material: Die Cast Aluminium
- OAL: 0.79
from RS Components, Ltd.
JOINT [See More]
- Joint Type:
- Material: Die Cast Aluminium
- OAL: 0.79
from RS Components, Ltd.
JOINT [See More]
- Joint Type:
- Material: Die Cast Zinc
- OAL: 1.57
from RS Components, Ltd.
SB 246-82 Double Joint Key [See More]
- Joint Type:
- Maximum Torque: 39.82
- Operating Angle: 3
- Maximum Speed: 6000
from RS Components, Ltd.
Acetal univ joint Double,5x5mm bore [See More]
- Joint Type: Double
- OAL: 2.00
- Hub O.D.: 0.44
- Bore: 0.197
from RS Components, Ltd.
Acetal univ joint Double,6x6mm bore [See More]
- Joint Type: Double
- OAL: 2.44
- Hub O.D.: 0.56
- Bore: 0.236
from RS Components, Ltd.
Acetal univ joint Double,10x10mm bore [See More]
- Joint Type: Double
- OAL: 3.54
- Hub O.D.: 0.69
- Bore: 0.394
from RS Components, Ltd.
2 plain bearing universal joint,6mm ID [See More]
- Joint Type: Double
- OAL: 2.20
- Hub O.D.: 0.63
- Bore: 0.236
from RS Components, Ltd.
2 plain bearing universal joint,8mm ID [See More]
- Joint Type: Double
- OAL: 2.44
- Hub O.D.: 0.63
- Bore: 0.315
from RS Components, Ltd.
2 plain bearing universal joint,14mm ID [See More]
- Joint Type: Double
- OAL: 3.78
- Hub O.D.: 1.10
- Bore: 0.551
from RS Components, Ltd.
2 plain bearing universal joint,10mm ID [See More]
- Joint Type: Double
- OAL: 2.91
- Hub O.D.: 0.87
- Bore: 0.394
from RS Components, Ltd.
2 plain bearing universal joint,12mm ID [See More]
- Joint Type: Double
- OAL: 3.39
- Hub O.D.: 0.98
- Bore: 0.472
from RS Components, Ltd.
2 plain bearing universal joint,18mm ID [See More]
- Joint Type: Double
- OAL: 4.49
- Hub O.D.: 1.42
- Bore: 0.709
from RS Components, Ltd.
2 plain bearing universal joint,20mm ID [See More]
- Joint Type: Double
- OAL: 5.04
- Hub O.D.: 1.65
- Bore: 0.787
from RS Components, Ltd.
2 plain bearing universal joint,16mm ID [See More]
- Joint Type: Double
- OAL: 4.09
- Hub O.D.: 1.26
- Bore: 0.630
from RS Components, Ltd.
2 plain bearing universal joint,22mm ID [See More]
- Joint Type: Double
- OAL: 5.71
- Hub O.D.: 1.77
- Bore: 0.866
from RS Components, Ltd.
2 plain bearing universal joint,25mm ID [See More]
- Joint Type: Double
- OAL: 6.42
- Hub O.D.: 1.97
- Bore: 0.984
from RS Components, Ltd.
2 roller bearing universal joint,12mm ID [See More]
- Joint Type: Double
- OAL: 3.39
- Hub O.D.: 0.98
- Bore: 0.472
from RS Components, Ltd.
2 roller bearing universal joint,10mm ID [See More]
- Joint Type: Double
- OAL: 2.91
- Hub O.D.: 0.87
- Bore: 0.394
from W.M. Berg
The primary purpose of couplings is to join two pieces of rotating equipment while permitting some degree of misalignment or end movement or both. By careful selection, installation and maintenance of couplings, substantial savings can be made in reduced maintenance costs and downtime. Beam... [See More]
- Joint Type: Double
- OAL: 2.00
- Hub O.D.: 0.38
- Bore: 0.125
from Ondrives.US Corporation, formerly Rino Mechanical
Manufactured from lightweight, durable Delrin ™ engineered thermoplastic, Ondrives.US ’ Series 103 (single) and Series 111 (double) plastic universal joints deliver zero-backlash performance at speeds up to 1,000 RPM. Also known as a universal coupling, U-joints can accommodate up to 90... [See More]
- Joint Type: Double
- Bore: 0.188 to 0.750
- Hub Bore: Round
- Operating Angle: 10 to 60
from Curtis Universal Joint Company, Inc.
Stainless Steel Double Joints — Solid Hubs. Curtis double joints are available in 14 sizes, and share all of the advantages of Curtis single U-joints. Features include: Extra angularity allows standard units to operate at angles up to 70 °. Quick and easy TakeApart ™ design for easy... [See More]
- Joint Type: Double
- Hub O.D.: 0.38
- Hub Bore: Solid
- Weight: 0.07
from Huco Dynatork
Materials & Finishes. Forked body members:Acetal (black).Cross pieces & headed bore inserts:Brass BS2874 CZ121. Chromate & passivate finish.Fasteners:Alloy Steel, black oiled. Temperature Range. -20 °C to +60 °C [See More]
- Joint Type: Double
- Hub O.D.: 0.69
- Hub Bore: Round
- OAL: 2.97
from KTR Corporation
CLAMPEX ® clamping elements are shaft-hub-connections. They allow for a backlash-free and non-positive connection between cylindric smooth shafts and hub bores without keyway. The clamping elements are clamped via integrated screws which are used for non-destructive untightening of the clamping... [See More]
- Joint Type: Double
- Hub O.D.: 0.63 to 3.74
- Hub Bore: Round (optional feature); Keyed; Hex (optional feature); Square (optional feature)
- Bore: 0.236 to 1.969
from Elliott Manufacturing Co., LLC
Elliott Double Universal Joints are ideally suited to handle parallel misalignments up to 37 ° and angular misalignments to 70 °. Available in various materials. Lengths may vary from dimensions shown. Note: U-Joints meet MIL-U-20625A when specified. [See More]
- Joint Type: Double
- OAL: 5.62
- Hub O.D.: 1.25
- Bore: 0.500
from Voith Turbo Inc.
Technical features. Compact shaft with very high torque capacity due to impact compression of journal crosses. Equipped with advanced radial and axial bearing assemblies. Torque transmission by Hirth teeth on the flanges. Torque range of 1140 to 11340 kNm. CW shafts are available with deflection... [See More]
- Joint Type: Double
- Hub O.D.: 23.65 to 52.00
- Hub Bore: Round
- OAL: 72.05 to 110.24
from ATLANTA Drive Systems, Inc.
Ball-and-socket joints. Ball-and-socket joints are very compact in their design and can be installed in cases where space is limited. Due to their sturdy design they are suitable for high-power transmissions. The maximum speed is dependent on the working angle and should not exceed 1000 rpm. The... [See More]
- Joint Type: Double
- Hub O.D.: 0.31
- Hub Bore: Round
- OAL: 1.38
from Curtis Universal Joint Company, Inc.
Curtis double joints are available in 14 sizes, and share all of the advantages of Curtis single U-joints. Features include: Extra angularity allows standard units to operate at angles up to 70 °. Quick and easy Take Apart „ ¢ design for easy and economical disassembly and reassembly,... [See More]
- Joint Type: Double
- Hub O.D.: 0.38
- Hub Bore: Round
- Weight: 0.07
from Huco Dynatork
Materials & Finishes. Forked body members:Acetal (black).Cross pieces & headed bore inserts:Brass BS2874 CZ121. Chromate & passivate finish.Fasteners:Alloy Steel, black oiled. Temperature Range. -20 °C to +60 °C [See More]
- Joint Type: Double
- Hub O.D.: 0.28
- Hub Bore: Round
- OAL: 1.39
from Voith Turbo Inc.
Technical features. Compact shaft with high torque capacity and very high bearing life. Center parts characterized by increased torsional and structural stiffnes. Hirth serration as a standard for connecting parts. Closely spaced sizes from 350 to more than 1000 mm for torque capacities from 360 to... [See More]
- Joint Type: Double
- Hub O.D.: 13.78 to 31.50
- Hub Bore: Round
- OAL: 41.34 to 85.83
from Huco Dynatork
Suitable for all mechanical engineering applications [See More]
- Joint Type: Double
- Hub O.D.: 2.48
- Hub Bore: Round
- OAL: 9.37
from Voith Turbo Inc.
Fixed length assembly [See More]
- Joint Type: Double
- Hub O.D.: 8.86 to 13.78
- Hub Bore: Round
- OAL: 22.24 to 35.24
from Huco Dynatork
Hardened journals, large bearing surface, prelubricated [See More]
- Joint Type: Double
- Hub O.D.: 2.36
- Hub Bore: Round
- OAL: 10.47
from Voith Turbo Inc.
Technical features. Standard design: Closely spaced sizes from 225 to 350 mm flange diameter. Design emphasis on lateral and torsional stiffness. Torque range of 32 to 143 kNm. Applications. Marine drives, pumps, locomotives, paper machines, general industrial machinery. [See More]
- Joint Type: Double
- Hub O.D.: 8.89 to 13.81
- Hub Bore: Round
- OAL: 18.90 to 29.53
from Huco Dynatork
Suitable for high sped applications & where lubrication is difficult [See More]
- Joint Type: Double
- Hub O.D.: 2.09
- Hub Bore: Round
- OAL: 8.03
from Voith Turbo Inc.
Technical features. Standard design: Closely spaced sizes from 58 to 435 mm flange diameter. Design emphasis on long bearing life and low moments of inertia. Torque range of 150 Nm to 275 kNm. Applications. Marine drives, pumps, locomotives, paper machines, general industrial machinery. [See More]
- Joint Type: Double
- Hub O.D.: 2.29 to 17.16
- Hub Bore: Round
- OAL: 6.30 to 37.60
from Huco Dynatork
Hardened journals, large bearing surface, prelubricated [See More]
- Joint Type: Double
- Hub O.D.: 3.94
- Hub Bore: Round
- OAL: 14.17
from Voith Turbo Inc.
Technical features. Standard design: Closely spaced sizes from 225 to 550 mm flange diameter. Compact design with high torque capacity. Torque transmission by cross-key in the flange. Torque range of 55 to 1000 kNm. Applications. Rolling mill drives, and general industrial machinery subject to heavy... [See More]
- Joint Type: Double
- Hub O.D.: 8.89 to 21.69
- Hub Bore: Round
- OAL: 20.47 to 53.35