170 Mounting Hole CRS
To Edge of Disc
87
17
Disc Centre Line
ø 610 Min.
Disc Diameter
110
ø 193
44
150
300
193
45
Brake Disc
25.4 (GMR)
38/40 (GMR40)
212 (GMR
)
223 (GMR40
)
170 Mounting Hole CRS
275 New Pads
305 Fully
W
orn Pads
3 Holes ø 17
for M16 Mounting Bolts
40
24 (GMR)
GMR-SH & GMR40-SH Disc Brake Caliper - Spring Applied, Hydraulically Released
DB4605
The ratings shown on the above graph are based on fully bedded and conditioned brake pads. For bedding in
and conditioning procedures see Publication M1060.
Braking Force is defined as the Tangential Force acting on the brake disc at the Effective Disc Radius.
Braking Torque (Nm) = Braking Force (N) x Effective Disc Radius (m)
where Effective Disc Radius = Actual Disc Radius- 0.06
Note:
The caliper may be assembled as
drawn (right hand assembly) or with
arms and thruster oppositely handed.
Nominal dimensions given.
For specific dimensions please
contact Twiflex.
For GMR Mk 2 caliper details see DB 3604
Disc Diameter mm
610
760
915
1065
1220
1370
1525
1830
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
Braking Torque kNm
Oi
l Pressure - ba
r
110
100
0
50
60
70
80
90
40
30
20
10
Minimum Pressure for Full Retraction 120 bar
Maximum Pressure 150 bar
