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Raja-Lovejoy GmbH液压元件 输电 热交换器
德国Raja-Lovejoy GmbH液压元件 输电热交换器
产品系列：
Bellhousings
Raja-Lovejoy® produces and distributes a variety of bellhousings. Among the choices are three different bellhousings components:
- Bellhousings acc. to VDMA 24561 rigid/noise damping
- Bellhousings for Gear Pumps
- Cooler Bellhousings, series KPV
Damping elements
The noise and/or concussion of the hydraulic unit can be considerably reduced by the use of Raja-Lovejoy® damping elements like:
- Damping rings
- Damping rods
- Elastic bushings for lids
The designs and the varied fields of application in industrial environments with their specific demands are very diverse. Raja-Lovejoy® offers a suitable solution for practically any requirement . Our team of industry professionals are here to help you choose the right component to fulfill the needs & requirements of your application. Or just use our free online configuration tool FLUIDWARE® 3D >>>
Couplings for hydraulic applications
Raja-Lovejoy®-Couplings of the SPIDEX® & DENTEX® Series are aimed at the hydraulic applications.
Further Raja-Lovejoy®- couplings for the power transmission engineering can be found in the category power transmission engineering >>>
Al-Reservoirs
- Made of aluminium - thus high thermal conductivity
- Easy mounting and simple handling
- Standard-Al-Tanks are stackable
- No additional painting required
- Mineral-oil resistant oil drip-tray gaskets are available
- A large number of accessories available
- Customised design possible
The following al-reservoirs are available
| Size of tank V [l] |
Effective volume V [l] |
cooling capacity P [kW] ∆t = 40 K |
| NG3.5 |
3 |
4 |
| NG6.5 |
6 |
9 |
| NG8 |
6.5 |
11 |
| NG12 |
10 |
15 |
| NG13 |
11 |
15 |
| NG20 |
17 |
18 |
| NG30 |
27 |
23 |
| NG44 |
40 |
26 |
| NG70 |
63 |
29 |
JOYTORK® Torque Limiters
JOYTORK® Torque Limiters are a robust but simple limiter for protection against overload.
Different Types of JOYTORK® Torque Limiters:
- JOYTORK® Standard
- JOYTORK® with sprocket
- JOYTORK® MAX
- JOYTORK® with SPIDEX®
- JOYTORK® with DENTEX®
- JOYTORK® with chain coupling
FTC Couplings
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Using only the best raw materials, Raja-Lovejoy® has developed a flexible coupling for High Torque Applications and Transmissions (FTC).
The type BR Flexible Couplings are more compact in design and efficiency, yet have similar dimensions of the rigid and semi-rigid couplings. They can transmit torque values between 4.000 Nm and 250.000 Nm, while keeping their capacity to absorb the shaft misalignments, vibrations, and torque fluctuations.
The coupling protects and increases the working lift of the rest of the working components within the application. The type BR couplings do not require lubrication, minimizing the corrective and preventative maintenance to the coupling. Coupling inspection can also be performed without any type of disassembly. All Gummi products are backed by our standard warranty, and are manufactured under the ISO 9001/2000 Quality Management System.
General Characteristics
Misalignment Solutions
Misalignment is the cause of breakage in bearings, as well as the other components of the machine (seals, gaskets, gears), which are not normally prepared for the inflection upon the axis. The primary features like: elasticity, misalignment compensation, and shock absortion, the Gummi Flexible is the solution in reducing the efforts of the machines components while increasing their useful life.
Simple Installation
The replacement is simpler and faster because it is comprised of only one rubber element. Using smaller alignment tolerances allows the element to extend the working life of its elastic center. It is not necessary to move the parts in order to replace the flexible element.
Symmetry - Security - Balance
Since the rubber element does not have any cuts in the elastic center, it has a guaranteed balance and no safety or security issues.
Vibration & Shock Load Dampening
The ability to absorb torsional vibrations and shocks extends the working life of the equipment or machine. The measurement of vibrations that are transmitted in a system, from one side to the other, is around 70%. This is minimized with the elastic center of the coupling's ability to absorb the shock loads and vibrations.
No Need to Lubricate
As a result of its design and constructive characteristics, the element does not require lubrication.
Economy
The working life capacity in the applications spare parts increases, reducing costly down time, minimizing the cost of replacement components, lubricants and inventory. The elastic center of the coupling works for a prolonged period of time without needing to be replaced.
SPIDEX® - the Elastic Coupling
Elastic couplings reduce intermittent short period torsional shocks, by briefly storing the shock energy. Any degree of uneven movement and load transfer is consequently reduced. Elastic couplings restrain body resonance, and therefore contribute to noise reduction. The elastic SPIDEX®- coupling transmits the torque safely preventing break-down.
Advantages:
- Torsional elasticity
- Dampening
- Blind assembly
- Safe against break-down
- No maintenance
- Hub material: Aluminium (Al), Cast Iron (GG/GGG), Sintered Steel (Si), Steel (St)
DENTEX® FL flexible coupling
 - Die flexible Kupplung für Verbrennungsmotoren
The DENTEX®-Coupling is a flexible gear coupling, which whose typical features are two
congruent hubs with crowned teeth which transmit torque by meshing with the
internal toothing of a housing component. The coupling sleeve with axially parallel
involute gearing is centered at the tooth flanks of the coupling hub.
The coupling design meets the requirement to compensate radial, angular and
axial shaft displacements in order to release the neighbouring shaft bearings
from non-controlled, additional loads.
Even with the maximum permissible displacement edge, contact of the teeth is excluded and there will be no periodic variation of the angular velocity. The high internal cushioning properties of the plastic material used for the coupling sleeve reduce the effect of shock loading.
DENTEX®-Couplings are suitable both for horizontal and vertical shaft connection, for reversing and intermittent service. The steel/plastic combination also has the advantage that no lubrication by oil or grease is required; the coupling, therefore, does not need any maintenance.
The 6.6-polyamide used for the coupling sleeve excels by its excellent sliding properties and wear resistance especially by the combination of toughness, hardness and rigidity; it is also resistant to most oils and hydraulic fluids.
Maximum service reliability is guaranteed at temperatures in the range from -25 °C up to +80 °C. It is necessary to use a coupling sleeve in heat stabilised polyamide for temperature up to 140 °C.
Advantages:
- Compensation of axial, radial and angular misalignment of shafts through double cardanic action
- Simple and easy assembly
- High electrical insulating property
- High thermal stability
- No maintenance
Torsional Couplings
The following versions of torsional couplings are available:
- Series FTC
- Series LF
- Series LK
- Series LM
Further available components:
- Pump mounting plates >>>
- Pump mounting housings >>>
NewCool Coolers & Heat Exchangers
Raja-Lovejoy® GmbH has developed into a successful supplier of quality components for fluids and engine technology, and offers a complete program of oil coolers and heat exchangers from NewCool®, our subsidiary, founded in 2006.
NewCool® products are the result of many years of experience combined with a wealth of knowledge from within the field of fluid and transmission engineering. Thanks to the standardisation of individual components, technically sophisticated solutions are available at a highly competitive price/performance ratio. The standard BNZ series offers four shell sizes with available lengths of up to 2200 mm. NewCool® also offers tailor made solutions to the most arduous applications and according to customer specification. BNZ coolers are suitable for all industrial and marine environments.
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