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Summary of Contents for Rossi G Series
- Page 1 G series Operating instructions Helical and bevel helical gear reducers and gearmotors...
- Page 2 Operating instructions G series UTD.187.2019.09.00_EN...
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Page 3: Table Of Contents
11.6 - Metal fi ller plug with fi lter and valve ......................... 40 11.7 - Hollow low speed shaft ............................. 40 11.8 - Sound levels L and L ..........................40 12 - Gear reducer troubles: causes and corrective actions ................41 Index of revisions ............................42 Operating instructions G series UTD.187.2019.09.00_EN... -
Page 4: General Information And Safety Instructions
Information and data contained in this document correspond to the technical level reached at the moment the catalog is printed. Rossi reserves the right to introduce, without notice, the necessary changes to improve effi ciency and safety of its products. -
Page 5: Application Conditions And Use Limits
Do not commission gear reducers and gearmotors that are even slightly damaged. Report any non-compliance to Rossi. 3.2 - Name plate Every gear reducer is provided with a name plate in anodized aluminium containing main technical information relevant to identifi... -
Page 6: Lifting, Handling And Storing
Make sure that the lifting equipment (e.g.: crane, hook, eye bolt, straps, etc.) are suitable for the weight and size of the gear reducer (consult Rossi technical catalog for dimensions and weight). For the lifting and transport of gear reducer (or gearmotor) use through holes or threads on the gear reducer housing feet as stated in the fi... -
Page 7: Storing
– completely fi ll the gear reducers with lubrication oil and the specifi ed level before commissioning. For storages longer than 2 years or in aggressive surroundings or outdoors, consult Rossi. Operating instructions G series... -
Page 8: Installation Of Gear Reducer
(also on fl ange mating surfaces). For accessories not suplied by Rossi, pay attention to their dimensioning; consult us, if need be. Before wiring-up the gearmotor make sure that motor voltage corresponds to input voltage. If direction of rotation is not as desired, invert two phases at the terminals. -
Page 9: Tightening Torque For Fastening Screws (Feet, Fl Ange, Accessories) And For Plugs
320 ... 360 M30 n. 8 n. 8 (M30) 1) With B5 flange type B: 14 n.4 (M12). Sizes 140, 200 Size 250 Fig. 5.3.2. B14 Flange Fig. 5.3.3. Drilling B14 for sizes 140, 200 and 250. Operating instructions G series UTD.187.2019.09.00_EN... -
Page 10: Foot Mounting
Important! Concerning the reaction system, follow the project indications stated in the technical catalogs Rossi. Whenever personal injury or property damage, due to falling or projecting parts of gear reducer or of its parts, may occur, foresee adequate supplementary protection devices against: –... - Page 11 Before mounting the torque arm, carefully clean the torque arm, all coupling surfaces and apply locking adhesives on the screws and on mating surfaces. Tighten the screws by a dynamometric wrench at values shown in the table 5.2.1 «Tightening torques». Operating instructions G series UTD.187.2019.09.00_EN...
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Page 12: Hollow Low Speed Shaft Mounting
1,18 ÷ 1,25 time the hollow shaft internal diameter. For other data on machine shaft end (in case of standard hollow low speed shaft, stepped shaft, with locking rings or bushings) see Rossi technical catalogs. Attention! For vertical ceiling-type mounting and only for gear reducers equipped with locking rings or bushing, gear reducer support is due only to friction, for this reason it is advisable to provide it with a fastening system. -
Page 13: Gear Reducer Axial Fastening
M36 M36 UNI 5737-88 cl 8.8 Ms [N m] 1350 1660 2570 3150 for rings or bushing 1) UNI 5931-84 cl. 8.8 (excluding MR 3I). 2) UNI 5737-88 cl. 10.9. 3) UNI 5931-84 cl. 10.9. Operating instructions G series UTD.187.2019.09.00_EN... -
Page 14: Mounting Of Hollow Low Speed Shaft With Shrink Disc
15 1) Values valid for shrink disc on machine opposite side. 2) Bolt tightening torque. 3) For design with labyrinth seals at low speed shaft, the dimensions E, E1, E2 are changing: please consult us. Operating instructions G series UTD.187.2019.09.00_EN... - Page 15 Loosen the fastening screws one after the other only by using approx. ½ turn at a time and by a continuous sequence (not crossing), until shrink disc can be moved on hollow shaft. Remove the gear reducer from machine shaft end. Operating instructions G series UTD.187.2019.09.00_EN...
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Page 16: Fitting Of Components To Low And High Speed Shaft Ends
5) For low speed shaft ends: E = 97 (E = 101 if double extension); value not to standanrd. 6) Value not to standard. 7) For MR 3I with low speed shaft end, E dimension increases by 1. Operating instructions G series UTD.187.2019.09.00_EN... -
Page 17: Backstop Device
Make sure that the direction of rotation in machine, gear reducer and motor all correspond correctly. Attention! One or more startings in the false direction, even if short, could irremediably damage the backstop device, the coupling seats and/or the electric motor. Operating instructions G series UTD.187.2019.09.00_EN... -
Page 18: Lubrication
fi lling and the level check during maintenance. For mounting positions, oil quantity and plug position see ch. 6.3 and 6.4. Combined gear reducers. Lubrication remains independent, thus data relative to each single gear reducer hold good. Operating instructions G series UTD.187.2019.09.00_EN... -
Page 19: Lubrication Table
In case of labyrinth seal with greaser apply, unless otherwise stated, KLÜBER STABURAGS NBU 8 EP (see ch. 11.4). Attention! Refer to ch. 6.4 for bearings requiring greasing and contact Rossi in case of doubt. Operating instructions G series UTD.187.2019.09.00_EN... -
Page 20: Oil Levels (Quality) For Sizes 40
4) For design UO3D in mounting position B6 or B7 the bearings of upper bevel pinion are grease lubricated. 5) For C3I in mounting position B6, the bearing of the fi rst gear pair (wheel side) is grease lubricated. Operating instructions G series UTD.187.2019.09.00_EN... - Page 21 Page intentionally left blank Operating instructions G series UTD.187.2019.09.00_EN...
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Page 22: Mounting Positions And Position Of Plugs For Sizes 100
pump (V6); when it is not present or there are not ducts, the upper bearings Oil level plug ( not in view) are grease lubricated. Oil drain plug ( not in view) Operating instructions G series UTD.187.2019.09.00_EN... - Page 23 Oil filler plug ( not in view) 2) For size 200 the level plug could be on the opposite side. Oil level plug ( not in view) Oil drain plug ( not in view) Operating instructions G series UTD.187.2019.09.00_EN...
- Page 24 MR 2I 100, 125 (valid for long model as well) Oil filler plug ( not in view) Oil level plug ( not in view) Oil drain plug ( not in view) The upper bearings are grease lubricated. Operating instructions G series UTD.187.2019.09.00_EN...
- Page 25 MR 4I 100, 125 Oil filler plug ( not in view) Oil level plug ( not in view) Oil drain plug ( not in view) The three upper bearings are greased. Operating instructions G series UTD.187.2019.09.00_EN...
- Page 26 MR ICI 100 ... 200 Oil filler plug ( not in view) Oil level plug ( not in view) The two upper bearings are grease lubricated. Oil drain plug ( not in view) Operating instructions G series UTD.187.2019.09.00_EN...
- Page 27 grease lubricated. Oil level plug ( not in view) *** For mounting position B7 (design ...D) the upper bearings of bevel pinion are Oil drain plug ( not in view) grease lubricated. Operating instructions G series UTD.187.2019.09.00_EN...
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Page 28: Motor Assembly And Disassembly
50 cl. 8.8 Ød = 80 the hub clamp (taking care not to modify the axial position of hub clamp); – unscrew the motor fastening screws of nuts to gear reducer fl ange; – disassemble the motor. Operating instructions G series UTD.187.2019.09.00_EN... - Page 29 10 000 22.5 20 000 15 000 25 000 19 000 35 500 26 500 33.5 47 500 33 500 37.5 63 000 45 000 80 000 56 000 100 000 71 000 47.5 Fig. 7.3.1 Operating instructions G series UTD.187.2019.09.00_EN...
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Page 30: Maximum Fl Ange Bending Moment Mr
– – – – – – – 2 800 9 000 – – – – 9 000 – – – – (65) 9 000 – – – – – – – – (85) 9 000 Operating instructions G series UTD.187.2019.09.00_EN... -
Page 31: Cooling System
For the setting use the control knob on valve head. For ambient temperature lower than 0 °C consult us. Setting values advised operating temperature: +50 ÷ +65 °C. Attention! It is necessary to protect the thermostatic valve from any shock or stroke. Thermostatic valve Operating instructions G series UTD.187.2019.09.00_EN... -
Page 32: Independent Cooling Unit
G 1”1/4 G 1”1/4 ( 110) UR O/W 50 MS134P2 G 1” G 1”1/4 G 1”1/4 ( 110) 1) Connection for delivery of UR O/A 16. 2) Connection for the delivery in presence of fi lter. Operating instructions G series UTD.187.2019.09.00_EN... - Page 33 1) It is advisable to delay the starting of gear reducer compared with the motor pump starting by aprox. 1 min. 2) The presence of oil fi lter requires that the cooling unit starting is given with hot oil: refer to cases A1 or B1. Operating instructions G series UTD.187.2019.09.00_EN...
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Page 34: Accessories
Pg 11 1~ 230 V 50-60 Hz G 1” 1/4 G 1” 1/2 Pg 13 3~ ∆230 Y400 V 50-60 Hz G 2” 1500 320, 321 2100 Single-phase Three-phase Three-phase connection connection Y connection ∆ Operating instructions G series UTD.187.2019.09.00_EN... -
Page 35: Oil Temperature Probe
For the connection of probe to relevant signalling device, use a protected section cable 1,5 mm positioned separately from power cables. White Pt100 Gear reducer size (key) 125, 140 G 1/2” 160 ... 280 G 3/4” 320 ... 360 G 1” Operating instructions G series UTD.187.2019.09.00_EN... -
Page 36: Bearing Temperature Probe
Gear reducer size (key) (key) 125, 140 G 1/2” 160 ... 280 G 3/4” 320 ... 360 G 1” I ... UP2A 2I ... UP2A 3I ... UP2A CI ... UO2A (UO2V) C2I ... UO2A (UO2V) Operating instructions G series UTD.187.2019.09.00_EN... -
Page 37: Bearing Temperature Probe With Terminal Box And Amperometroc Transducer
The switch is supplied ready for use; when level goes down approx 5 mm, the switch goes on and contact opens. When fi lling oil in the gear reducer it is necessary to verify that device is properly calibrated. If any problems occur during this operation contact Rossi. Operating instructions G series UTD.187.2019.09.00_EN... -
Page 38: Oil Optical Probe
The temperature of both gear reducer and lubricant may well rise beyond normal values during running-in. After the running-in period it may be necessary to verify the gear reducer fi xing bolt tightness. Operating instructions G series UTD.187.2019.09.00_EN... -
Page 39: Maintenance
Verify that there are no deposits inside the coil which may obstruct water circulation or aff ect cooling. If any, wash the coil with suitable chemical cleaning products or consult Rossi. Check the internal heat exchanger periodically and, if necessary, clean the exchange surfaces taking care not to damage the fi... -
Page 40: Bearings
4) For sizes R I 225, 280 and 360, increase values of 1 dB(A). In case of gearmotor (motor supplied by Rossi) add 1 dB(A) to the values in the table for 4 poles 50 Hz motors, and add 2 dB(A) for 4 poles 60 Hz motors. -
Page 41: Gear Reducer Troubles: Causes And Corrective Actions
– failure nature and duration; – when and under which conditions the failure occured; – during the warranty period, in order not to loose validity, do not disassemble nor tamper the gear reducer or gearmotor without approval by Rossi. Operating instructions G series... -
Page 42: Index Of Revisions
Index of revisions Operating instructions G series UTD.187.2019.09.00_EN... - Page 43 Operating instructions G series UTD.187.2019.09.00_EN...
- Page 44 Rossi, who were duly informed about Customer’s application purposes. In this case all the necessary data required for the selection shall be communicated exactly and in writing by the Customer, stated in the order and confirmed by Rossi. The Customer is always responsible for the safety of product applications. Every care has been taken in the drawing up of the catalog to ensure the accuracy of the information contained in this publication, however Rossi can accept no responsibility for any errors, omissions or outdated data.
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