Technical Description; General Description; Types And Rotation Directions - Siemens FLENDER B3 E Series Assembly And Operating Instructions Manual

5.

Technical description

Observe the instructions in section 3, "Safety instructions"!
5.1

General description

The gear unit is supplied as a two or three­stage bevel­helical gear unit. It is designed for installation in the
horizontal mounting position. If necessary, it can also be designed for installation in a different position.
Subject to agreement in the order, the following gear­unit inclinations are permissible:
Longitudinal inclination:
Transverse inclination:
To ensure correct lubrication only the oil level must be increased, if the inclination values are
not exceeded.
5.1.1

Types and rotation directions

The gear unit can be operated in both directions of rotation. However, it is possible that
a certain direction of rotation has been specified in the order which is realised by
adding­on a backstop or overrunning clutch.
An exception is type B3.E, which is fitted with an axial fan which is dependent of the
direction of rotation.
A number of shaft configurations (types and rotation directions) are possible. These are shown in the
following table as solid shafts: The arrows with the direction of rotation show the correlation between the
directions of rotation of the input and output shafts.
Table 7: Types and correlation of direction of rotation
Type
B2SH
B2HH
B2DH
B2KH
B2FH
B2HM
B2DM
B2KM
B2FM
B3SH B3SE T3SH
B3HH B3HE T3HH
B3DH B3DE T3DH
B3KH B3KE T3KH
B3FH B3FE T3FH
B3HM T3HM
B3DM T3DM
B3KM T3KM
B3FM T3FM
When fitting the auxiliary drive (as maintenance and/or load drive) the assignment of the
direction of rotation to the design is defined in the dimensioned drawing.
The gear units are characterised by a low noise level. This is achieved by helical and bevel­helical gears
with a high contact ratio and special sound­damping housings.
The good temperature characteristics of the gear unit are achieved by its high degree of efficiency, large
housing surface and performance­related cooling system.
± 5°
± 2°
A B
BA 5033 EN 03/2011
23 / 96
Types
C D E F