RV Series Worm Gear Boxes Gearbox Speed Reducer with Electric
MotorsInput ConfigurationsDouble or single input shaft (NRV)PAM /
IEC motor input shaft with circle or square flange (NMRV)Output
Configurations Double or single output shaftOutput
flangeTechnical Data:Housing materialCast iron/Ductile ironHousing
hardnessHBS190-240Gear material20CrMnTi alloy steelSurface hardness
of gearsHRC58°~62 °Gear core hardnessHRC33~40Input / Output
shaft material42CrMo alloy steelInput / Output shaft
hardnessHRC25~30Machining precision of gearsaccurate grinding, 6~5
GradeLubricating oilGB L-CKC220-460, Shell Omala220-460Heat
treatmenttempering, cementiting, quenching, etc.Efficiency94%~96%
(depends on the transmission stage)Noise (MAX)60~68dBTemp. rise
(MAX)40°CTemp. rise
(Oil)(MAX)50°CVibration≤20µmBacklash≤20ArcminBrand of bearingsChina
top brand bearing, HRB/LYC/ZWZ/C&U. Or other brands requested,
NSK.Brand of oil sealNAK --- Taiwan or other brands
requestedSpecificationModelMotor Input Flange (circle)Transmission
RatioPower(kw)Ratio(i)Nominal Torque(Nm)PAM / IECInternal Dia.Dis.
Between Diagonal Screw HolesExternal Dia.Width of Key
Slot57.5101520253040506080100NMPEDiamter of Input
ShaftNMRV2556B1450658039-9-0.067.5-602.6-14NMRV3063B595115140411-0.06-0.187.5-802.6-1463B1460759056B58010012039-56B14506580NMRV4071B5110130160514-0.09-0.377.5-10011-5371B14708510563B59511514041163B1460759056B5801001203-9NMRV5080B5130165200619-0.12-0.757.5-10021-8980B148010012071B5110130160514-71B14708510563B5951151404-11NMRV6390B5130165200824-0.25-1.57.5-10056-16690B149511514080B5130165200619-80B148010012071B51101301605-1471B147085105NMRV75100/112B51802152508-28-0.55-47.5-10090-269100/112B1411013016090B5130165200824-90B149511514080B51301652006-1980B148010012071B5110130160--14NMRV90100/112B51802152508-28-0.55-47.5-100101-458100/112B1411013016090B5130165200824-90B149511514080B51301652006-1980B1480100120NMRV110132B523026530010-38-1.1-7.57.5-100242-660132B14130165200-100/112B5180215250828-90B5130165200-2490B1495115140-80B5130165200-19 NMRV130 132B523026530010 - 38 - 2.2-7.5 7.5-100 333-1596 132B14130165200-100/112B51802152508-2890B5130165200--2490B1495115140NMRV150160B525030035012-42-2.2-157.5-100570-1760132B523026530010-38-132B14130165200-100/112B51802152508-28Company
profileScenarioPackingFAQQ1: I want to buy your products, how can I
pay?A: You can pay via T/T(30%+70%), L/C ,D/P etc. Q2: How can
you guarantee the quality?A: One year's warranty against B/L date.
If you meet with quality problem, please send us pictures or video
to check, we promise to send spare parts or new products to
replace. Our guarantee not include inappropriate operation or wrong
specification selection. Q3: How we select models and
specifications?A: You can email us the series code (for example: RC
series helical gearbox) as well as requirement details, such as
motor power,output speed or ratio, service factor or your
application...as much data as possible. If you can supply some
pictures or drawings,it is nice. Q4: If we don't find what we
want on your website, what should we do?A: We offer three
options:1, You can email us the pictures, drawings or descriptions
details. We will try to design your products on the basis of
ourstandard models.2, Our R&D department is professional for
OEM/ODM products by drawing/samples, you can send us samples, we do
customized design for your bulk purchasing.3, We can develop new
products if they have good market. We have already developed many
items for special using successful, such as special gearbox for
agitator, cement conveyor, shoes machines and so on. Q5: Can
we buy 1 pc of each item for quality testing?A: Yes, we are glad to
accept trial order for quality testing.Q6: How about your product
delivery time?A: Normally for 20'container, it takes 25-30 workdays
for RV series worm gearbox, 35-40 workdays for helical gearmotors.
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