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BPW · THE QUALITY FACTOR
Upper ring
Load-carrying ball
Holding ball
Lower ring
BPW turntables
with double ball race
BPW turntables with double ball race
The no. 1 in system comparison
Optimum force transmission
Compared to conventional, single-row
systems, BPW turntables are characterized
by the high-quality feature of a double ball
race to guarantee optimum distribution of
the axial and radial forces that arise.
BPW turntables have one axial and one
radial ball race between the upper and
lower rings.
The design superiority of this system that
has proven itself in years of application is
demonstrated in everyday use of drawbar
trailers, semi-trailers, heavy transporters
and special vehicles.
BPW turntables are used in particular
when the vehicle construction places the
most exacting requirements on design and
material.
2
■ The vertical loads acting on the
turntable are absorbed by the larger axial
ball race.
■ The horizontal forces are absorbed by
the smaller radial ball race.
■ The torque loadings arising from braking
and centrifugal force are absorbed in the
interplay between the two ball races.
■ The radial ball race retains the upper
and lower rings in place.
Absolute functional reliability
Economy through long service life
■ The design principle guarantees
the greatest possible safety, because
the acting axial and radial forces are
transmitted onto the two ball races
separately.
BPW turntables guarantee a minimum of
downtime due to their long service life.
■ The special selection of material and
production processes achieves the
highest quality. The turntable sections
made from high-strength steel are hot
formed, butt welded and then heat treated
at normalization temperature, thereby
ensuring they have low levels of stress
and can be used even under extreme
conditions.
■ The ball race is secured under load by
the axial ball race.
■ The space inside the turntable is
provided with long-lasting protection
against dust and dirt by a labyrinth seal.
■ The sum of all these advantages ensures
reliability, freedom of movement and the
highest possible service life.
Upper ring
Load-carrying ball
Holding ball
Lower ring
3
BPW turntables in use
Design and installation notes
■ The permitted axial load (see table)
is the static vertical load acting on the
turntable. It only applies for vehicles with
a speed up to 105 km/h. A 25% higher
axial load is permitted for vehicles with
a speed up to 30 km/h. The BPW code
number, production data, turntable type
and permitted axial load are punched into
the rating plate.
■ The support structure for the lower and
upper rings must be smooth, level and
torsionally rigid, otherwise deformation
can be expected during operation and
operational safety might thereby be
impaired. Unevenness of the contact
surfaces is not allowed to exceed 1 mm.
Unevenness values greater than this must
be corrected. The contact surface, divided
into at least 4 equally sized surface
portions evenly distributed around the
circumference, must support at least 50%
of the turntable flanges.
4
■ The turntable flanges must additionally
be secured against movement at the top
and bottom following bolting, using at
least 4 weld-on plates (shear blocks) each.
This means that the radial forces occurring
do not have to be absorbed exclusively by
the connection bolts.
■ We recommend using drilled turntables.
No drilling chips or coolant is allowed to
penetrate the ball races if drilling work is
carried out subsequently.
Maintenance
■ Turntables must be filled with BPW
special long-life grease ECO-Li 91 (lithium
complex grease) prior to operation,
filling via the grease nipples. They are
only lightly greased when new, which
means the lubrication is only sufficient for
emergency running.
■ BPW turntables are not suitable for
applications involving repeated rotations
of more than 360°.
■ BPW turntables are not suitable for
off-centre loads.
■ Special applications require consultation
with us.
■ Every 25,000 kilometres or at least
quarterly (every 2-3 weeks under extreme
application conditions), lubricate the
turntable bearing with BPW special
long-life grease ECO-Li 91 via the grease
nipples (lithium complex grease).
The grease must not be mixed with
different types of grease (calcium or
sodium-saponified).
■ Regularly check all screw connections
and tighten if necessary.
■ No welding work is allowed to be
performed on BPW turntables, i.e. no
parts are allowed to be welded on. When
welding work is performed on the vehicle,
the earth cable must be attached so as
to ensure no current can flow through the
turntable, otherwise the balls and races
may be damaged.
5
8-hole
DK 80/8
A
B
D
8-hole
C
E
20°
45°
10°
G
F
Upper ring
45°
17°
63
°
20°
B
G
20°
45°
1
H
D
°
Lower ring
50
E
40°
Direction of travel
B
Direction of travel
J
°
50
70
°
Upper ring
3
2
Lower ring
45
°
Upper ring
BPW standard delivery range
er
mb
Pe
rm
co
W
BP
Mo
de
l
de
nu
mb
nu
de
co
W
BP
l
de
Mo
6
itte
da
Pe
xia
rm
itte
l lo
d
ad
Ex
tot
in
ter
al
t 4)
na
tra
lØ
ile
BPW turntable - undrilled
er
BPW turntables - drilled 2)
DK 80/5
DK 80/8
DK 80/10
02.6415.01.00
02.6415.11.00
02.6415.14.00
5
8
10
25
40
50
664
894
1108
DK 80/8
DK 80/10
02.6415.10.00
02.6415.13.00
DK 80/16 A3)
DK 90/10/1208
02.6415.17.003
02.6415.66.00
DK 80/16 A3
02.6415.18.003
16
10
50
50
894
1208
DK 90/10/1212
DK 90/12
DK 90/13
DK 90/13/1208
DK 90/13/1212
DK 90/14
DK 90/16
DK 90/16/1212
DK 90/20
DK 90/20/1212
DK 90/26/1212
DK 90/30/1212 SP
02.6415.70.00
02.6415.24.00
02.6415.20.00
02.6415.67.00
02.6415.72.00
02.6415.34.00
02.6415.30.00
02.6415.74.00
02.6415.41.00
02.6415.76.00
02.6415.78.00
02.6415.80.00
DK 90/10/1200
DK 90/12
DK 90/13
02.6415.71.00
02.6415.23.00
02.6415.22.00
DK 90/13/1200
DK 90/14
DK 90/16
DK 90/16/1200
DK 90/20
DK 90/20/1200
DK 90/26/1200
DK90/30/1200SP
02.6415.73.00
02.6415.33.00
02.6415.31.00
02.6415.75.00
02.6415.40.00
02.6415.77.00
02.6415.79.00
02.6415.81.00
10
12
13
13
13
14
16
16
20
20
26
30
50
50
55
55
55
55
60
60
60
60
70
70
1208
1000
1108
1208
1208
1000
1108
1208
1108
1208
1208
1208
1) Special versions on request. 2) See illustrations for drilling patterns. 3) Only use for semi-trailer coupling. 4) Permitted
10-hole
DK 80/16A
31
,5°
Upper ring
Lower ring
Upper ring
20°
G
5°
17° 31,
8
Lower ring
Lower ring
n.
mi
Th
De
rea
sig
dØ
nh
We
e
igh ight
Jm
t (k
g)
in.
mm
es
tity
hic
Qu
an
et
D
10
8
M 14
M 16
80
90
49
92
10
10
10
10
10
10
10
10
10
10
10
10
12
8
8
8
12
8
8
12
8
12
12
12
M 16
M 16
M 16
M 16
M 16
M 16
M 16
M 16
M 16
M 16
M 16
M 16
90
90
90
90
90
90
90
90
90
90
90
90
92
72
82
92
92
72
82
95
82
95
96
96
2
4
9
10
880 852
1195 1160
6
4
784 16
1079 18
10
10
10
10
10
10
10
10
10
10
10
10
1195
987
1095
1195
1195
987
1095
1195
1095
1195
1195
1195
8
4
4
4
8
4
4
8
4
8
8
8
1079
871
979
1079
1079
871
979
1079
979
1079
1079
1079
18
18
18
18
18
18
18
18
18
18
18
18
ng
Ø
Fla
le
9
10
Ho
38
49
64
(14) 9
16 9
16 9
1160
952
1060
1160
1160
952
1060
1060
1060
1160
1160
1160
kn
mm
mm
H
rn
tte
Ø
ern
al
pa
le
sE
mm
Ø
Ho
cir
cle
na
G
m
sE
Fm
es
kn
hic
lØ
ch
80
80
80
Int
18
18
18
18
18
18
18
18
18
18
18
18
(M 12)
M 14
M 14
554
784
994
Pit
1042,0
834,0
942,0
1042,0
1042,0
834,0
942,0
1042,0
942,0
1042,0
1042,0
1042,0
ter
1174
966
1074
1174
1174
966
1074
1174
1074
1174
1174
1174
8
8
8
650 (622)
880 852
1095 1060
(14) 9
16 9
16 9
Ex
749,5
16
1042,0 18
et
D
866 5
1174 3
ng
Ø
519,5
749,5
959,5
Fla
le
Ho
(636)
866 1
1074 3
7
3
3
3
7
3
3
7
3
7
7
7
mm
mm
C
Ø
al
ern
le
Int
Ho
cir
cle
Pit
ch
pa
Ø
tte
B
rn
mm
mm
eig
ht
t
Bolt
Per ring
er
w
mm
A
20°
,5 °
50
°
°
50
58
°
7
6
Direction of travel
Upper ring
Lower ring
5°
17° 31,
°
20°
°
5
20°
50
4
20°
B
G
20°
5°
31,
°
20°
Direction of travel
20°
B
50
16°
70
°
G
32°
17° 31,5
°
20°
10°
31
20°
10°
64
Ø
12-hole
axial load = static axial load over the steered axle which acts on the turntable. Subject to modifications!
7
Corporate-Art · BPW-Turntables-07/1e
BPW Bergische Achsen Kommanditgesellschaft, P.O. Box 12 80, D-51656 Wiehl, Phone +49 (0) 22 62 78-0, [email protected], www.bpw.de