helical gear units - Ro-quip.com
helical gear units - Ro-quip.com
helical gear units - Ro-quip.com
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A s i a P a c i f i c<br />
HELICAL GEAR UNITS<br />
Information<br />
Horizontal or vertical, right angle or parallel, foot mounted or shaft mounted <strong>gear</strong> <strong>units</strong> Greaves <strong>helical</strong><br />
<strong>gear</strong> <strong>units</strong> are fully metric and are suitable for most applications in both horizontal and vertical drives.<br />
Based on a modular design and construction, the high degree of interchangeability of parts and subassemblies<br />
among all variants effect considerable economies of production, whilst maintaining the<br />
highest standard of <strong>com</strong>ponent and unit elements. A wide choice of ratio is available based on<br />
re<strong>com</strong>mendations laid down in AGMA standards with additional half ratio steps.<br />
Profile ground <strong>helical</strong> <strong>gear</strong>s together with spiral bevel <strong>gear</strong>s lapped in pairs, ensure high standards of<br />
accuracy, surface finish and quiet running characteristics. Helical <strong>gear</strong>s are fitted in parallel shaft <strong>units</strong><br />
whilst <strong>units</strong> with shaft at right angle incorporated spiral bevel and <strong>helical</strong> <strong>gear</strong>s. High quality alloy case<br />
hardening material provides long life, wear resistance and fatigue strength.<br />
The high power to weight ratio of all <strong>units</strong> <strong>com</strong>bines with low volume to enable installation in the most<br />
difficult situations. Each of the two variants contains unique features suited to their own operating<br />
conditions.<br />
Horizontal <strong>units</strong> feature optional right or left hand shaft arrangements from the same sub-assemblies and<br />
are available as foot mounted, shaft mounted or foot/shaft mounted types.<br />
Vertical <strong>units</strong> are available in three versions : Standard <strong>units</strong>, heavy duty stirrer types and cooling tower<br />
drives.<br />
Units for heavy duty stirrer and cooling tower drives are derivatives of the standard unit by addition of<br />
housing on the output shaft line to increase the size of the shaft and the bearings.<br />
Website: www.ro-<strong>quip</strong>.<strong>com</strong>
A s i a P a c i f i c<br />
All types include the following features to provide the best solution to the needs of the vertical<br />
application and the high reliability which is most important in modern plant:<br />
- Vertical case joints allows easy maintenance and fitting of lubrication pipe work in one half of the <strong>gear</strong><br />
case so that the lubrication system is not disturbed when dismantling.<br />
- Drive and construction ensure freedom from leakage down the output shaft.<br />
- Forced lubrication of all top bearings.<br />
- Taper roller bearings fitted to output shaft for high overhung load and axial thrust load capacities.<br />
Website: www.ro-<strong>quip</strong>.<strong>com</strong>
A s i a P a c i f i c<br />
Technical Specifications<br />
STD RANGE : 140 - 630<br />
HORIZONTAL : 1.22:1 - 657:1<br />
BEVEL : 5.06:1 - 438:1<br />
RATINGS - Mechanical & Thermal capaities kW<br />
Type<br />
H1<br />
H2, VH2<br />
H3, VH3<br />
H4<br />
B2, VB2<br />
B3, VB3<br />
B4<br />
Reduction<br />
Single<br />
Double<br />
Triple<br />
Quadruple<br />
Double<br />
Triple<br />
Quadruple<br />
DIMENSIONS - Principal, Shaft & Keyway (mm)<br />
1. Horizontal Units<br />
Type<br />
H1<br />
H2<br />
H2S<br />
H2SF<br />
H3<br />
H3S<br />
H3SF<br />
H4<br />
H4SF<br />
B2<br />
B2S<br />
B2SF<br />
B3<br />
B3S<br />
B3SF<br />
B4<br />
B4SF<br />
Motorised<br />
2. Vertical Units<br />
VH2, VH2SA,<br />
VH2CT<br />
VH3, VH3SA,<br />
VH3CT<br />
VB2, VB2SA,<br />
VB2CT<br />
VB3,<br />
VB3SA,VB3CT<br />
Reduction<br />
Single<br />
Double<br />
Double<br />
Double<br />
Triple<br />
Triple<br />
Triple<br />
Quadruple<br />
Quadruple<br />
Double<br />
Double<br />
Double<br />
Triple<br />
Triple<br />
Triple<br />
Quadruple<br />
Quadruple<br />
All<br />
Double<br />
Triple<br />
Double<br />
Triple<br />
Shafts<br />
Parallel<br />
Parallel<br />
Parallel<br />
Parallel<br />
Right Angle<br />
Right Angle<br />
Right Angle<br />
Shafts<br />
Parallel<br />
Parallel<br />
Parallel<br />
Parallel<br />
Parallel<br />
Parallel<br />
Parallel<br />
Parallel<br />
Parallel<br />
Right Angle<br />
Right Angle<br />
Right Angle<br />
Right Angle<br />
Right Angle<br />
Right Angle<br />
Right Angle<br />
Right Angle<br />
Parallel/Right<br />
Parallel<br />
Parallel<br />
Right Angle<br />
Right Angle<br />
Mounting<br />
Foot<br />
Foot<br />
Shaft<br />
Foot/Shaft<br />
Foot<br />
Shaft<br />
Foot/Shaft<br />
Foot<br />
Foot/Shaft<br />
Foot<br />
Shaft<br />
Foot/Shaft<br />
Foot<br />
Shaft<br />
Foot/Shaft<br />
Foot<br />
Foot/Shaft<br />
Foot/Shaft<br />
Foot<br />
Foot<br />
Foot<br />
Foot<br />
Website: www.ro-<strong>quip</strong>.<strong>com</strong>