External Shaft-Hub Locking Devices
Description
External shaft-hub locking devices are mechanical components designed to secure a hub to a shaft. They achieve this by exerting a radial force that locks the component in place, ensuring a stable and secure connection between the shaft and the hub.
Working Principle
External shaft-hub locking devices work by fitting over the component hub projection and applying a radial force that transmits through the hub onto the shaft. This frictional locking mechanism ensures that the component remains securely attached to the shaft. The locking device typically consists of two halves that clamp together via bolts, which, when tightened, generate the necessary radial force. This method is particularly useful because it allows for easy adjustment and does not mar the shaft, unlike other methods such as set screws or pins .
Applications
External shaft-hub locking devices are used in various applications where secure and adjustable connections between shafts and hubs are required. Specific examples include their use in power transmission systems, where they help maintain the alignment and stability of rotating components such as gears, pulleys, and couplings .
Advantages over other Shaft-Hub Locking Devices
External clamping devices offer several advantages over other shaft-hub locking methods. They do not damage the shaft surface, unlike set screws, which can mar the shaft. Additionally, they allow for easy axial and radial adjustments, providing flexibility in positioning the component. This is in contrast to pins, which provide a fixed location and cannot be adjusted once installed .
Limitations
One limitation of external shaft-hub locking devices is that they do not fully support the component and cannot be pinned, which might be necessary in some applications to prevent slippage. Additionally, if the fit clearance between the shaft and bore is too large, the hub can become eccentric to the shaft, leading to potential misalignment and imbalance issues .
Considerations
When selecting external shaft-hub locking devices, several factors should be considered. Initial costs and operating expenses can vary depending on the specific design and materials used. Durability and accuracy are generally high, but proper installation is crucial to avoid issues such as misalignment. Replacement and maintenance costs are typically low, as these devices are designed for easy installation and removal, allowing for straightforward maintenance procedures .
from KTR Corporation
CLAMPEX ® clamping elements are shaft-hub-connections allowing for a backlash-free and non-positive connection between cylindric smooth shafts and hubs without keyway. The clamping elements are clamped via integrated screws which are used for non-destructive untightening of the clamping elements... [See More]
- Application: External
- Shaft Diameter: 0.3937 to 9.65
- Design Units: Metric
- Maximum Torque: 1.08E6
from Zero-Max
bull; 50 bore sizes from .750" through 4.0" (15mm to 100mm). • All steel components including steel clamping screws, pressure flange, piston, sealing ring, and double-walled sleeve. • Precision finish. • Temperature range -22 ÕF to +180 °F. • Rated Torques: 41 -... [See More]
- Application: External
- Hub Diameter: 0.5906
- Design Units: Metric
- Clamping Length: 1.18
from Lovejoy, Inc.
Connects hubs solidly to shafts using keyless mechanical interference fit. Wide selection available – 9 types; internal and external devices. Easy device installation and removal. Lovejoy Shaft Locking Devices connect hubs solidly to shafts, using a keyless mechanical interference fit, to... [See More]
- Application: Internal (Thru Bore); External
- Shaft Diameter.: 0.7500
- Design Units: English; Metric
- Hub Diameter: 7.94
from Voith Turbo Inc.
Voith power transmission systems do not only control and convert torques, but also reliably transmit these from the input to the output drive, by means of universal joint shafts and mechanical couplings; if required these may also serve vibration damping or torque limiting functions. They are... [See More]
- Application: External
- Hub Diameter: 3.15
- Design Units: Metric
- Maximum Torque: 10841
from Ringfeder Power Transmission USA Corporation
Simplified manufacture – only plain shaft and bore diameters with easily achieved surface finish and tolerances are required. Easy adjustability - Easy mounting - Easy removal - Low susceptibility to contamination - Highest reliability. Characteristics. Shrink discs are the modern method for... [See More]
- Application: External
- Hub Diameter: 26.38
- Design Units: Metric
- Clamping Length: 6.93
from U.S. Tsubaki Power Transmission, LLC
All dimensions are nominal values and for reference only [See More]
- Application: External
- Design Units: English
from KTR Corporation
CLAMPEX ® clamping elements are shaft-hub-connections allowing for a backlash-free and non-positive connection between cylindric smooth shafts and hubs without keyway. The clamping elements are clamped via integrated screws which are used for non-destructive untightening of the clamping elements... [See More]
- Application: External
- Shaft Diameter: 0.5118 to 5.91
- Design Units: Metric
- Maximum Torque: 5.45E6
from Zero-Max
ETP Bushings are the Ideal Locking Device for all Shaft-To-Hub Connections. ETP Bushings feature a double-walled sleeve, pressure ring and tightening screws. They slide onto a shaft easily, and securely lock most shaft-mounted motion control components in position. When the bushing screws are... [See More]
- Application: External
- Hub Diameter: 0.7500
- Design Units: Metric
- Clamping Length: 1.46
from Ringfeder Power Transmission USA Corporation
Simplified manufacture – only plain shaft and bore diameters with easily achieved surface finish and tolerances are required. Heavy duty series for high torque and bending moment. Easy adjustability - Easy mounting - Easy removal - Low susceptibility to contamination - Highest reliability. [See More]
- Application: External
- Hub Diameter: 27.56
- Design Units: Metric
- Clamping Length: 6.89
from U.S. Tsubaki Power Transmission, LLC
Offers the greatest allowable transmissable torque of all Tsubaki Power Locks ®. Ideal for multi-strand or large hub sprockets. Self-centering to control eccentricity. Inch size range: 3/4" - 11 13/16". For selection and application see Technical Notes download. For selection and application... [See More]
- Application: External
- Hub Diameter: 1.97
- Design Units: English
- Clamping Length: 1.57
from Zero-Max
Compact and Economical. • Fast mounting/dismantling with only one screw. • Radial tightening of the screw saves space along the shaft. • Small built-in dimensions. • Accurate positioning. • No axial movement when mounted. • Uniform surface pressure against shaft and hub... [See More]
- Application: External
- Hub Diameter: 0.6252
- Design Units: Metric
- Clamping Length: 1.57
from Ringfeder Power Transmission USA Corporation
Reduced dimensions with lower transmission values – especially for applications with restricted space. This light duty external locking device is the first in the Shrink Disc range and is useful for low to medium torque requirements. Characteristics. Shrink discs are the modern method for... [See More]
- Application: External
- Hub Diameter: 29.53
- Design Units: Metric
- Clamping Length: 6.73
from U.S. Tsubaki Power Transmission, LLC
Ideal for narrow hubs. Interchangeable with AS Series. Flanged construction allows for fast installation. Inch size range: 3/4" - 4.00". For selection and application see Technical Notes download [See More]
- Application: External
- Hub Diameter: 1.97
- Design Units: English
- Clamping Length: 0.9960
from Zero-Max
High Precision Connections. Metric Sizes Only. • Extremely fast and easy to mount and dismantle. • 14 popular bore sizes from 15mm to 100mm. • Fits into tight spaces. Adjusts quickly with just one screw. • Tightens radially with even surface pressure. • Prevents damage to... [See More]
- Application: External
- Hub Diameter: 0.5906
- Design Units: Metric
- Clamping Length: 1.61
from Ringfeder Power Transmission USA Corporation
Reduced dimensions with lower transmission values – especially for applications with restricted space. As a split version, the SR series is able to offer greater mounting versatility on symmetrical hub designs or can also be used as Half Shrink Discs for lower torque applications. Shrink discs... [See More]
- Application: External; External (Split)
- Hub Diameter: 29.53
- Design Units: Metric
- Clamping Length: 3.6
from U.S. Tsubaki Power Transmission, LLC
Most popular series world-wide. Easy machining of shaft and hub. Can use on shafts with a keyway. Inch size range: 3/4" thru 11-13/16". For selection and application see Technical Notes download [See More]
- Application: External
- Hub Diameter: 1.97
- Design Units: English
- Clamping Length: 0.7090
from Ringfeder Power Transmission USA Corporation
Standard series – this range is the most popular, being used in most applications. This new design of Shrink Disc is made from high alloy forged rings and is practically indestructible. Replacing the smaller 4071 design, these units are available from 14mm to 195mm bore. Characteristics. [See More]
- Application: External
- Hub Diameter: 13.78
- Design Units: Metric
- Clamping Length: 3.39
from U.S. Tsubaki Power Transmission, LLC
For selection and application see Technical Notes download [See More]
- Application: External
- Hub Diameter: 0.5120
- Design Units: English
- Clamping Length: 0.4530
from Ringfeder Power Transmission USA Corporation
Standard series – this range is the most popular, being used in most applications. High transmission values are possible, and by varying the screw tightening torque the Shrink disc can be adapted to the design specification. Characteristics. Shrink discs are the modern method for creating a... [See More]
- Application: External
- Hub Diameter: 13.39
- Design Units: Metric
- Clamping Length: 3.03
from U.S. Tsubaki Power Transmission, LLC
For selection and application see Technical Notes download [See More]
- Application: External
- Hub Diameter: 0.5120
- Design Units: English
- Clamping Length: 0.1460
from Ringfeder Power Transmission USA Corporation
Two part shrink heavy duty series – with additional guide me ‑. chanism for the inner ring. For the transmission of maximum torques. Characteristics. Shrink discs are the modern method for creating a mechanical shrink fit. The shrink disc consists of either one or two thrust rings with... [See More]
- Application: External
- Hub Diameter: 48.43
- Design Units: Metric
- Clamping Length: 11.65
from U.S. Tsubaki Power Transmission, LLC
Self-centering function. Simple construction allows for fast installation. Can use on shaft with keyway. Inch size range: 3/4" - 4.00". For selection and application see Technical Notes download [See More]
- Application: External
- Hub Diameter: 2.17
- Design Units: English
- Clamping Length: 1.13
from U.S. Tsubaki Power Transmission, LLC
Ideal for "A" plate sprockets and narrow gears. Designed to suit a wide range of shaft tolerances. Ideal for small shaft diameters. Inch size range: 3/8" - 4.00". For selection and application see Technical Notes download [See More]
- Application: External
- Hub Diameter: 1.88
- Design Units: English
- Clamping Length: 0.6690
from U.S. Tsubaki Power Transmission, LLC
Removable snap ring allows for flanged or flush mounting. Austenite stainless steel designed to handle the most corrosive envireonment and clean room applications. Metric size range: 5mm - 50mm. For selection and application see Technical Notes download [See More]
- Application: External
- Hub Diameter: 0.7090
- Design Units: English
- Clamping Length: 0.5310
from U.S. Tsubaki Power Transmission, LLC
Removable snap ring allows for flanged or flush mounting. Austenite stainless steel designed to handle the most corrosive envireonment and clean room applications. Metric size range: 5mm - 50mm. For selection and application see Technical Notes download [See More]
- Application: External
- Hub Diameter: 0.7090
- Design Units: English
- Clamping Length: 0.5310
from U.S. Tsubaki Power Transmission, LLC
External locking device for hollow shaft. Ideal for applications with limited space. Metric size range: 24mm - 300mm. Black anodized coating for corrossion resistance. For selection and application see Technical Notes download [See More]
- Application: External
- Maximum Torque: 151
- Design Units: English
- Maximum Axial Load: 4026
from U.S. Tsubaki Power Transmission, LLC
Designed to fit small hub diameters [See More]
- Application: External
- Hub Diameter: 0.4720
- Design Units: English
- Clamping Length: 0.3940
from U.S. Tsubaki Power Transmission, LLC
All dimensions are nominal values and for reference only [See More]
- Application: External
- Hub Diameter: 3.83
- Design Units: English
- Clamping Length: 2.75
from U.S. Tsubaki Power Transmission, LLC
U.S. Tsubaki offers the most complete line of QD ® and TAPER-LOCK weld-on hubs for insertion and welding to produce “B ” style sprockets, sheaves, and other applications without hub protrusion. To provide greater strength for this type of shaft-locking mechanism and to reduce heat... [See More]
- Application: External
- Clamping Length: 1.62
- Design Units: English
from U.S. Tsubaki Power Transmission, LLC
U.S. Tsubaki offers the most complete line of QD ® and TAPER-LOCK weld-on hubs for insertion and welding to produce “B ” style sprockets, sheaves, and other applications without hub protrusion. To provide greater strength for this type of shaft-locking mechanism and to reduce heat... [See More]
- Application: External
- Clamping Length: 1.62
- Design Units: English
from U.S. Tsubaki Power Transmission, LLC
Metric bore sizes are available upon request and are subject to an alteration charge shown on discount multiplier sheets. All TAPER-LOCK Bushings are available in steel from stock. Stainless steel bushings are available on a quoted basis. [See More]
- Application: External
- Hub Diameter: 0.8750
- Design Units: English
from U.S. Tsubaki Power Transmission, LLC
U.S. Tsubaki offers the most complete line of QD ® and TAPER-LOCK weld-on hubs for insertion and welding to produce “B ” style sprockets, sheaves, and other applications without hub protrusion. To provide greater strength for this type of shaft-locking mechanism and to reduce heat... [See More]
- Application: External
- Hub Diameter: 1.5
- Design Units: English
from U.S. Tsubaki Power Transmission, LLC
U.S. Tsubaki offers the most complete line of QD ® and TAPER-LOCK weld-on hubs for insertion and welding to produce “B ” style sprockets, sheaves, and other applications without hub protrusion. To provide greater strength for this type of shaft-locking mechanism and to reduce heat... [See More]
- Application: External
- Clamping Length: 1.75
- Design Units: English
from U.S. Tsubaki Power Transmission, LLC
Support rollers are available for TK070 with R75 and R90. Your order will be custom made. The location of the stand for the Cableveyor depends on its usage. When ordering a stand, please advise us accordingly. In order to determine space requirements for installation of the Cableveyor, please refer... [See More]
- Application: External
- Clamping Length: 1.77
- Design Units: English