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The scientist Blaise Pascal formulated the principle of pressure propagation in liquids many years ago:
”A liquid confined in a vessel which is subjected to pressure distributes the pressure uniformly upon the walls of the vessel. ”
ETP has explored the many positive qualities in this principle, developed it further and applied it to the hub-shaft connections.
”A hydraulic pressure medium confined in a double-walled sleeve is pressurized (with screws/pistons or with an external pump). The pressure is distributed evenly along and around hub/shaft. The double-walled sleeve expands uniformly and gives an even contact pressure against shaft and hub ”.
The ETP-Principle works because of the hydraulic system: compact design, fast mounting, easy to position, good runout, does not damage the contact surfaces and is easy to dismantle. These qualities are important today and will be even more important in the future.
With increasing requirements on down sizing the machines, better runout/balance, increased machine speeds, shorter downtime for service and increased precision, is why the ETP hydraulic hub-shaft connections are choosen for more and more designs.
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ETP-HYLOC, due to its robust design, is ideally suited to work in difficult environments and heavy operations like steel rolling mills, process industry etc. An interesting application, among many, has been fastening of rolls to shafts. ETP-HYLOC is fast to mount, has good concentricity and can take high radial loads.
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ETP Transmission AB is specialized in development and manufacturing of high precision hydraulic locking devices.
A new hydraulic hub-shaft connection assortment of the more common ETP-Products are now introduced in stainless steel.
The demand from the food and process industries is increasing for stainless steel hub-shaft connections, surface coatings and plating are no longer sufficient.
The three most common types of the ETP-Products, ETP-CLASSIC, ETP-MINI and ETP-EXPRESS, are now available as standard items.
ETP-CLASSIC Type R, recommended for all normal needs.
For shaft sizes from 15 to 50 mm.
ETP-MINI Type R, for small shafts with sizes from 6 to 14 mm.
ETP-EXPRESS Type R, especially suitable for applications where adjustments
of the hub are made frequently or because of the need for radial access.
For shaft sizes from 15 to 50 mm
All surfaces exposed to the environment are made of stainless steel. In for example food processing this meets essential requirements.
Choose, for your application, the optimum hub-shaft connection in stainless steel
from ETP.
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MISUMI provides more than 1 Million mechanical components for the assembly automation. We delivery components europewide in averagely 6-8 days GUARANTEED delivery from the day of purchase, stock items available from 2 days delivery.
MISUMI 24/7 Web Ordering System (WOS) represents a full-fledged e-Commerce solution, which you can use, for the first time, independently from the catalogue in paper form, to configurate MISUMI products, submit quotations and place orders.
For more information about MISUMI, WOS or for ordering a catalogue please visit: www.misumi-europe.com
MISUMI - Precisely Meeting Your Demands
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Shaft Collars
Ruland shaft collars are offered in multiple styles to fit shafts ranging from 1/8" to 6" in the inch series and 3mm to 80mm in the metric series, in a variety of materials and finishes. Collars are stamped with the Ruland name and the bore size for easy identification.
Extra steps are taken in the manufacturing of a Ruland shaft collar to provide important performance benefits. For example, Ruland collars are single point faced (indicated by the circular groove on the face) during the boring operation to insure perpendicularity of the face to the bore. Perpendicularity is important for alignment when collars are used as a bearing face, a mechanical stop, or for mounting other components.
One-piece clamp style shaft collars wrap around the shaft for even distribution of clamping forces. This results in a tight fit and greater holding power, without the shaft damage caused by set screws. Ruland uses carefully selected materials and proprietary processes to ensure that the clamping gap remains open for simpler and more precise adjustment, installation and fit.
Two-piece clamp style shaft collars offer the same benefits of the one-piece clamp collars with additional versatility and convenience. They are easily disassembled, reducing labor and downtime when adjustment, removal, or replacement is necessary. Ruland keeps both halves of its two-piece collars together throughout the manufacturing process to assure a perfect match for proper fit, holding power and alignment.
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Features:
- Does not mar the shaft.
- Single point faced.
- Acme and Left-hand threads available.
- Additional sizes available.
- Width tolerance: +.003"
-.010"
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Exclusively from Stafford - Clamp-Type shaft collars manufactured to fit square or hexagonal shafts. They can be modified (drilled, tapped, welded, etc.) to act as mounts for other components.
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Stop Collars with Rubber Bumpers
The unique Threaded Fine-Adjust version makes stroke adjustment even easier! Simply slide along the shaft and clamp in place. Then rotate the knurled portion for up to 1/4" of fine stroke adjustment. Ordinary stop collars are also available.
Available On:
Dual Slides: 5/8" Bore 1" & 1-1/2" Bore
Single Action Slides: 5/8" Bore 1" & 1-1/2" Bore
Gantry Dual Slides: 1" & 1-1/2" Bore
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For use on standard round shafts, these shaft collars are sized .001” to .002” over nominal to allow a smooth slip fit to the intended location. Offered in set screw style, one-and two-piece clamp-type, as well as Stafford’s own Hinge Collar. Plus a broad assortment of problem solving collars from our Solution Series of Special Purpose Mechanical Components.
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Stafford manufactures threaded clamp-type shaft collars to mount on shafts having Unified National Coarse (UNC), Unified National Fine (UNF), and ACME threads. Clamp-type collars provide maximum holding power without marring your expensive threaded shafts. They are easy to assemble and adjust.
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Clamping sets
self-centering
* Shaft-hub connection free of wear and tear
* No additional hub centering
* Axial fixing of the hub
* Torque: from 14 Nm - 956500 Nm
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Actuated wave hub connection with high truth of running SPIETH pressure cases spring temper wave hub connections with a truth of running of 0,01mm is better or. Constructed after the proven SPIETH Kraftschlussprinzip the pressure cases have high security forces when homogeneous demand the connecting units. Harmful stamping due to local voltage peaks are avoided. By an axial manipulation, alternatively integrated or externally, steel diaphragm radially against hub drilling and wave are pressed and it develop a closed force river between the pressure case and the connecting units. Due to the adding play a simple assembly as well as disassembly without special tool are ensured. SPIETH Druckhülsen belong to the few elements, which are suitable also for an automated employment. An extensive company standard program provides for requirement-fair and economical solutions with high availability. On the basis of their requirements special solutions can be compiled and offered ready to be installed. The pressure cases in the overview: - AK/IK - AL/IL for external clamping introduction - DSK/DSL with integrated clamping introduction - DSM with integrated clamping introduction for motor shafts (k6/m6)
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The Candy Timing Hub is the low cost phase adjusting coupling designed for precise rotary positioning. While in motion, the Timing Hub operates as a rigid shaft coupling. In the static position, it is possible to relocate one of the Timing Hub's flanges relative to the other, thus changing the rotary position of the output element. When both flanges are secured with the use of drive bolts, the Timing Hub again operates as a rigid shaft coupling.
The ability to advance and retard the position of various machine components is too often accomplished by friction-type clamping mechanisms. Such methods often slip under moderate shock loads, resulting in unnecessary and costly downtime. The Timing Hub eliminates the need for such devices, offering the most economical means of positive position control.
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PowerRing™ Shaft-Hub Locks provide a keyless, extreme high strength connection between components and round shafts. They feature a smooth, non-marring bore which contracts securely onto a shaft while expanding the OD tightly into the I.D. of a hub. Fully adjustable, they are balanced to minimize vibration at high speeds, and prevent backlash damage caused by heavy loads.
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RLK 200: the classic standard type
50 sizes available
slit cones for rough fits up to h11/H11
shaft diameters from 20 to 400 mm
torque up to 442 kNm
axial forces up to 2210 kN
RLK 250: space saving element
self centering
easy mounting
radial application
shaft diameters from 15 to 70 mm
torque up to 1075 Nm
axial forces up to 31 kN
RLK 400/402: for heavy applications
self centering
large clamping area, low surface pressure
shaft diameters from 45 to 600 mm
torque up to 13700 kNm
axial forces up to 4600 kN
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For the correct selection of high-speed, dynamic or reversing precision drives and shaft couplings. Only backlash-free couplings are able to fulfil these requirements. We have a backlash-free coupling for every application which optimally harmonises with your drive system.
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Today’s manufacturing sector is concerned with the amount of downtime spent on scheduled and unscheduled maintenance. The dollars lost to unscheduled maintenance by itself can be quite substantial. All industrial facilities use some type of flexible coupling for pumps, compressors, conveyors, and other machinery.
Fact is, flexible couplings all require some type of maintenance. Gear and grid type flexible couplings require lubrication. To lubricate these types of couplings, the lube plugs must first removed and then the coupling is filled with grease. Various elastomeric type flexible couplings require periodic change of the elastomeric element. The difficultly level for different types of elastomeric couplings can vary widely. Some, like the standard jaw product, require that one of the hubs be moved back on the shaft to allow for the element to be changed-out. Machinery may have to be moved to allow for this hub movement, which can be very time consuming.
Other elastomeric designs have many fasteners and parts to be disassembled for element change-out. In either case, the time that it takes to change this element is critical for maintenance personnel. This is where the advantages of the Lovejoy Jaw In Shear 6 Pin design provide a solution to plant downtime. There are no tools necessary, no hubs to move, no messy lubrication to deal with and best of all – elements can be changed in minutes.
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Compact Torque Measurement Coupling - Contactless torque measurement | Integrated into a backlash-free shaft coupling | Simple electrical and mechanical installation | Robust and reliable machine element | Completely maintenance-free
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- Backlash-free shaft coupling for spindle drives,
elevating platforms, machine tool drives, etc.
- Torsionally flexible, maintenance-free, vibration-damping
- Axial plug-in, fail-safe
- Different elastomer hardness of spiders
- Allover machining with good dynamic properties
- Compact design with small flywheel effect
- Finish bore according to ISO fit, feather keyway according to
DIN 6885 sheet 1 – JS9 and P9
- Surface protected (zinc-coated and yellow passivated, Cr6-free)
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- Backlash-free shaft connection under prestress for spindle drives,
elevating platforms, machine tool drives, etc.
- Axial plug-in ability and easy blind assembly without any timeconsuming
screw connections
- Small dimensions with low flywheel mass
- Maintenance-free, easy to check visually
- Different elastomer hardness of spiders
- Finish bore according to ISO fit, feather keyway according to DIN 6885
sheet 1 - JS9 and P9
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DELTEX - XS Torsionally flexible spider replacement couplings, made of steel or stainless steel
This patented elastic shaft coupling is a new Innovation. After removing
the safety cover the spider can exchanged easily without moving the
driving or driven side (for example motor or pump). After removing the
cover the separable spider can be exchanged without any problem.
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- Material aluminium Al-H made of solid material
- Torsionally flexible, maintenance-free, vibration-damping
- Axial plug-in, fail-safe
- Different elastomer hardness of spiders
- Allover machined with good dynamic properties
- Compact design with small flywheel effect
- Finish bore according to ISO fit, feather keyway according to DIN 6885
sheet 1 - JS9 and P9
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- For high shaft displacements, double-cardanic
- Reduced vibration and noise
- The restoring forces resulting from displacements are very low
- Increase of the total lifetime of all adjacent components (bearings,
seals, etc.)
- This double-cardanic shaft coupling offers in addition all
characteristics of the DELTEX-S shaft coupling
- Finish bore according to ISO fit, feather keyway according to
DIN 6885 sheet 1 – JS9 and P9
- Surface protected (zinc-coated and yellow passivated, Cr6-free)
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- Double cardanic curved-tooth gear coupling
- Maintenace-free due to the material combination of steel and nylon
- For all applications in the range of general engineering and hydraulics
- Axial plug-in, easy assembly
- Compensating for axial, radial and angular shaft misalignment
- Finish bore according to ISO fit, kayway according to DIN 6885 sheet 1,
JS9 and P9
- Surface protected steel parts (zinc-coated and passivated, Cr6+free)
Caracteristics of the DELWEX - sleeves (material polyamide):
- High mechanical consistency and stiffness
- Favourable slide-friction behaviour
- High thermal stability to +100°C
- Good viscosity even in case of low temperatures
- Very good electrical insulating property
- Good resistance to chemicals
Behaviour of wear and friction of the DELWEX - sleeves:
The high thermal stability and resistance to lubricants, fuels,
dissolvents, hydraulic fluids, etc. make polyamide an ideal material
for components stressed by sliding, particularly for the coupling
production. While any metallic materials tend to "corrode" in case of
dry running, slide combinations with steel and polyamide are operative
without any lubrication and maintenance.
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DELTEX - S Torsionally flexible shaft couplings - made of steel
Hubs from steel, specifically for drive elements subject to high loads,
e. g. elevator drives, steel mills, spline hubs etc.
- Torsionally flexible, maintenance-free, vibration-damping
- Axial plug-in, fail-safe
- Different elastomer hardness of spiders
- Allover machined with good dynamic properties
- Compact design with small flywheel effect
- Finish bore according to ISO fit, feather keyway according to DIN 6885
sheet 1 - JS9 and P9
- Surface protected (zinc-coated and yellow passivated, Cr6-free)
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