
P-2086-WE
SM304-gb-08/04
Electro-Magnetic Single Disc
Clutches SFM and Brakes PBM
Service Manual

We, WARNER ELECTRIC EUROPE, 7, rue Champfleur, B.P. 20095, F-49182 St Barthélemy d’Anjou Cedex
declare that the clutches and brakes made in our factories from St Barthélemy d’Anjou,
and hereafter designated : SFM and PBM
are exclusively designed for incorporation into a machine and to be assembled with other equipments to create a machine. The operation of
the product is submitted to the conformity of the complete equipment, following the provisions of the machinery directive 89/392/EEC and if
electric to the EMC directive 89/336 /EEC.
The conformity of the electric units to the Low Voltage directive 72/23 is supported by the full respect of the following standards : NFC 79300
and VDE 05808/8.65.
Drawn up in St Barthélemy d’Anjou, July 2002
E. PRAT, General Managing Director
CONTENTS
1 Technical specifications 2
2 Precautions and restrictions on use 2
2.1 Restrictions on use 2
2.2 Precautions 2
and safety measures
3 Installation 3
3.1 Transport - storage 3
3.2 Handling 3
1 Technical specifications
SFM Sizes 10 20 40 70 150 250 500
-1
Max. Speed min
Nominal airgap (0/+0,1) mm
Dimension M VAR00 mm
Weight VAR00 kg
Weight VAR01 kg
Weight VAR10 kg
Weight VAR11 kg
8000
0,2
24
0,5
0,59
0,7
0,79
PBM Sizes 10 20 40 70 150 250 500
-1
Max. Speed min
Nominal airgap (0/+0,1) mm
Weight VAR00 kg
Weight VAR01/VAR02 kg
8000
0,2
0,3
0,4
3.3 Installation 3
3.3.1 SFM VAR00 and VAR01 3
3.3.2 SFM VAR10 and VAR11 3-4
3.3.3 PBM VAR00, VAR01 and VAR02 4
4 Electrical connection 5
4.1 Important recommendations 5
4.2 Power supply 5
5 Appendices 6-7
6000
0,2
26,5
0,9
1,1
1,2
1,4
6000
0,2
0,5
0,7
5000
0,2
30
1,7
2,07
2,3
2,67
5000
0,2
0,95
1,32
4000
0,3
33,5
3
3,6
4
4,6
4000
0,3
1,7
2,32
3000
0,3
37,5
5,5
6,9
7,6
9
3000
0,3
3,3
4,8
2500
0,5
44
10
13,1
13
16,1
2500
0,5
5,9
9
2000
18,5
24,5
22,2
28,2
2000
11,5
17,6
0,5
51
0,5
Table 1
2 Precautions and restrictions on use
2.1 Restrictions on use
This equipment is designed for dry running.
Any oily material alters performance.
2.2 Precautions and safety measures
During the maintenance period make sure that the
moving parts of the machine are stationary and
that there is no risk of start-up.
Exceeding the maximum rotation speed
stated in the catalogue invalidates the
warranty.
Any modification made to the unit without
any express approval of a Warner Electric
representative will invalidate the guarantee and
This equipment is designed for a maximum
ambi ent temperature of 40°C (155°C casing
release Warner Electric from any liability regarding
conformity.
class).
2 Warner Electric Europe • +33 (0)2 41 21 24 24 P-2086-WE • 11/12

Fig. 2
Airgap
Adjusting spacer
Symbol designating an action that
might damage the apparatus
Symbol designating an action that
might be dangerous to human safety
3 Installation
3.1 Transport / storage
These units are delivered in packaging that
guarantees a 6 months storage period whether
transported by land, by air, or by sea to any
destination excepting tropical countries.
3.2 Handling
Avoid any impacts on the equipment so as not to
alter their performance.
Never carry the equipment by the electrical supply
cable.
3.3 Installation 3.3.1SFM (VAR00 and VAR01)
Inductor (104) should be fixed to the frame of the
machine, centred by the collar (see figure 1) or
directly centred on a bearing forming a support
(see figure 2). In this case, a circlip fitted in the
groove provided for the purpose holds it central to
the bearing.
In the case of collar centring, we specify an H9
tolerance.
Airgap
Adjusting spacer
Fig. 2
On VAR01 the armature is mounted on a hub
(332), sup plied reamed to tolerance H7 and
splined to tolerance P9.
The assembled hub / armature assembly
should be secured centrally so as to respecter
the nominal airgap.
It is essential when assembling to respect the
nominal airgap (see chapter 1) and dimension
M (See table 1).
The setover between the housing and shaft should
not exceed 0.05 mm.
On VAR00, the armature (331) is fixed by means
of CHC “profile head” screws (DIN 7984) locked
by means of a LOCTITE 270 type thermoplastic
liquid.
Airgap
Adjusting
spacer
Fig. 1
In the case where two co-axial shafts are fitted,
the recommended setover is 0.05 mm maximum.
The angular misalignment should not be greater
than 0,1 mm over a length of 100 mm.
When assembling or dismantling the moving
armature, never hit or pull it, this action could
generate permanent distortion of the
membrane-spring and malfunction.
3.3.2 SFM (VAR10 and VAR11)
The inductor (109) is stopped from rotating by
means of a stop foot. This should be fitted so
as to get a minimum play of 0,25 mm between
the sides of the notch to avoid any strain on the
inductor and internal bearing.
In case of vibrations, it is strongly recommended
to insert a damping elastic slot between the
anti-rotation device and the anti-rotation slot
and to fix the coil’s cable the nearest of it to
avoid whipping.
On VAR10, the armature is fixed (331) by means
of CHC “profile head” screws (DIN 7984) locked
by means of a LOCTITE 270 type thermoplastic
liquid.
Warner Electric Europe • +33 (0)2 41 21 24 24 P-2086-WE • 11/12 3