MOTOVARIO
Information
Helical bevel geared motors
3
Information
Motovario products are supplied with the following surface treatment features:
Die-cast aluminum alloy cases for gears:
Die-cast materials undergo the following surface cleaning operations:
-
De-burring by means of a mechanically operated shearing system
- Accurate shot-peening
- Painting
- Washing and passivation
Grey-coloured cast-iron cases for gears:
-
Die-cast materials are always painted
Painting specifications:
Orange-peel blue epoxy-polyester RAL 5010. Polyester resin based heat-hardening powders, altered with epoxy resins.
Mechanical properties:
-
Tests carried out onto degreased Unichim white lattens (film thickness: 2.5 mils) comply with the following specifications: adherence (ISO2409), Erichsen drawing (ISO152),
inverted shock (DIN53158), cone-shaped mandrel (DIN53151), hardness (ASTM D3363/74).
Heat resistance:
-
24 HOURS AT 150°C.
Corrosion strength:
-
ASTM B 117/97 salt fog from 100 to 500 hours depending on the support’s preliminary treatment.
Performance:
Loading capacity in accordance with
DIN 3990, ISO 6336, AGMA 2101, ISO 10300, DIN 3991, ISO 281, DIN 743.
Dynamic efficiency
η
d:
The operating efficiency is the ratio between the output power P2 and the power absorbed by the gear reducer P1:
η
d
= P2/P1
B/BA-range helical bevel gear reducers have an average value equal to:
B..3
stages = 0.9
BA..2 stages = 0.95
BA..3 stages = 0.9
Design features