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BP-013 · Shock absorber
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1
1
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A
A
B
B
C
C
D
D
E
E
F
F
376
Ø40
505
c=85
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6
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8
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4
3
24
25
15
17
16
A
A
B
C
AXIAL SECTION
SCALE 1:2
9
13
11
14
12
10
DETAIL B
VALVING, RIDES WITH IT · 5:1
21
23
20
18
22
19
DETAIL C
ROD GUIDE · SCALE 2:1
Ø50
SECTION A-A
PISTON MID-PLANE · SCALE 2:1
-1
0
1
2
-1.5
-1
-0.5
0
0.5
1
1.5
v, m/s · COMPRESSION − / REBOUND +
DAMPER F, kN
DIAGRAM 1
F–v · ACCENT: NOW · DASHED: VALVES BYPASSED
-50
-25
0
25
50
75
0
1
2
3
4
5
TIME SINCE THE PASS BEGAN t, s
z, mm
DIAGRAM 2
BODY z · ACCENT: THIS PASS · THIN: LAST PASS · DASHED: ROAD
SPRUNG 350 kg
WHEEL 40 kg
26 N/mm
c(v)
220 N/mm
DIAGRAM 3
QUARTER CAR · NOT TO SCALE
NOTES
1. OIL ISO VG 15. N₂ 25 bar abs AT FULL EXTENSION, POLYTROPIC n = 1.2.
2. GAS FORCE (p − p_atm)·A_rod: 369 N EXTENDED, 488 N AT FULL BUMP.
3. ROD DISPLACES 154 mm³/mm; FLOATING PISTON 7 MOVES 0.093 × ROD TRAVEL.
4. ALIGNED SECTION: RIGHT PORT COMPRESSION, LEFT REBOUND. BLEED NOTCH IN 1ST SHIM.
5. QUARTER CAR f = 1.37 Hz: A 2ND-ORDER LOW-PASS FILTER ON THE ROAD.
6. ROD, NUT, WASHERS NOT CUT. SHIM LIFT TRUE TO SCALE IN DETAIL B.
ITEM
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25
DESCRIPTION
PRESSURE TUBE Ø50×2
BASE CAP
EYE RING Ø40×4
EYE BUSH Ø32/Ø16×40
INNER SLEEVE Ø16×2×40
GAS FILL PLUG Ø4
FLOATING PISTON Ø46
O-RING 40×3 ISO 3601-1
PISTON Ø46×12, 3+3 PORTS
PISTON BAND 46×8×1
COMPRESSION SHIM Ø34–Ø20×0.3
REBOUND SHIM Ø34–Ø20×0.3
CLAMP WASHER Ø16×Ø10.2×2
HEX NUT M10×1 ISO 8673
PISTON ROD Ø14, M10×1 POST
REBOUND STOP RING Ø22
REBOUND BUFFER Ø25×12
ROD GUIDE
GUIDE BUSHING Ø14×Ø18×14
ROD SEAL Ø14×Ø26×8
DUST WIPER Ø14×Ø24
O-RING 41×2.5 ISO 3601-1
RETAINING RING DIN 472-46
BUMP STOP Ø32×43
DUST SHIELD Ø62×1
MATERIAL
E355+SR EN 10305-2
C22E
S355J2
NR 60 ShA
E235+C
NBR 90
EN AW-6082 T6
FKM 75
SINTERED SINT-D11
PTFE + 25% BRONZE
C75S 1.1248
C75S 1.1248
C45 QT
STEEL 8
42CrMo4 + HARD Cr
C45
PU 90 ShA
EN AW-6082 T6
STEEL/CuSn/PTFE
FKM 80
PU 92 ShA
NBR 70
C75S
PU MICROCELLULAR
DC04
QTY
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1
2
2
2
1
1
1
1
1
4
5
2
1
1
1
1
1
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1
1
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1
TITLE
MONOTUBE DAMPER · SECTION
DWG NO
BP-013
SCALE
1:2
SIZE
A2
SHEET
1 / 1
DRAWN
CLAUDE
DATE
2026-10-15
MATERIAL
SEE PARTS LIST
GENERAL TOL.
ISO 2768-m
UNITS
mm · N · bar abs
LIVE · DRAG THE ROD EYE · SPACE: A BUMP · D: DAMPING ON/OFF · S: SLOW
Drag the rod eye ·
↑
↓
stroke ·
Space
drive over a hump ·
D
damping on/off ·
S
slow
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