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Catalogo tecnico
boccole bimetalliche
Technical catalogue
for Bimetallic Bushings
Boccole bimetalliche
Le boccole bimetalliche sono prodotte con materiale composito di qualità, acciaio con basso tenore di carbonio ed una lega di bronzo sinterizzata, con le caratteristiche di poter sopportare elevate velocità, elevata
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industriali, dispositivi di sollevamento, condizionatori d’aria, cambi di autoveicoli, riduttori, molle a balestra e
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Bimetallic bushings
Bimetal bushing is produced with the composite material of quality, low-carbon steel and sintered bronze alloy,
which has the characteristics of high-speed proof, high-load capacity, high tensile strenght and low friction. Thus
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auto gear boxes, transmission cases, leaf springs in heavy-duty vehicles and stabilizers, etc. The dimensions of the
bushing both in metric and imperial series are in accordance with DIN 1494/ISO 3547 standard sizes.
Composizione delle leghe - Alloy composition
Tabella 1 - Table 1
Tipo
Type
Lega
Alloy
SAE
Boccole con amatura in acciaio
Steel Backed bushes
Temperatura Max. Amm.
Max temperature °C
CJA
&X3E6Q
797/792
Adatte per imbiellaggi - Bilanceri - Trasmissioni
Used for piston pin - Rocker arm - Transmission
CJB
&X3E6Q
799
Adatte a trasmissioni veloci
Used for high running speed transmission
CJC
&X3E6Q
49
Adatte a carichi elevati e ad alte velocità tipiche dei motori
Used for high loads runnung speed tipical in petrol engines
CJF
Cu Al 8
-
Adatte per imbiellaggi e bilanceri motore
Used for pistons pin and rocker arm for engines
CJH
$O6Q&X
783
Adatte per trasmissioni in genere e pompe
Used for transmission and pumps
7LSRGLVXSHUÀFLHGLOXEULÀFD]LRQHTypes of lubricating surface
H= Impronte sferiche
H= Spherical cap
S= Liscia
S= Smooth
W=*ROHGLOXEULÀFD]LRQH
W= Grooves
Tipi di giunzione - Joint types
std= Giunzione standard rettilinea
std= Straight seam
L= Giunzione bloccata a farfalla
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1
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3 3UHÀQLWD
3 3UHÀQLVKHG
T = Rilavorabile
T = Machinable
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Precise bushes (non-machinable)
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Ordinary Bushes (machinable)
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Bronze surface
RZ
RZ 6,3
Supporto in acciaio
Steel backing
RZ 1,6
RZ
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Outher surface
RZ 25
RZ
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Product description
Tolleranze delle boccole e possibilità di fornitura
La tolleranza del diametro interno delle bussole standard della serie CJHGLTXHOOHÁDQJLDWHqH9 (quando sono
montate in una sede standard con tolleranza +3RVVLDPRDQFKHIRUQLUHUDOOHGLWLSRORJLDGLYHUVDODPLQHHG
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Tolerances of the bushings and the way to supply goods
The inside diameter tolerance of CJVWDQGDUGDQGÁDQJHGEXVKLQJLVH9 (when pressed in H7 standard seat). We
also provide different kinds of washers strips and products designed according to customers special requirement
both in metric and imperial systems, but available are only those with outside diameter within 305mm, wait thickness within 10mm and length within 200 mm.
Spessore del materiale bimetallico e tolleranze relative
Thickness of the double layer metal and their tolerances
Spessore nominale (mm)
Nominal thickness (mm)
1,5
2,5
3,5
4,5
Spessore della parete in
acciaio
Thickness of steel backing
1,4
1,9
2,3
2,8
3,2
3,6
4
Spessore dello strato in
bronzo
Thickness of bronze layer
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Spessore della parete delle boccole rilavorabili e non rilavorabili e tolleranze relative
Waill thickness of machinable and non-machinable bore of bushes and their clearances
2
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Nominal thickness (mm)
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Tolerances series (non-machinable)
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Tolerances series (machinable)
1
1,5
2
2,5
3
3,5
Metodo di controllo delle dimensioni delle boccole
Esempio: Spessore parete 2 mm
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'LDPHWURGHOWDPSRQHODWRQRQSDVVDG PP
G ~ PP$ERFFRODIRU]DWDQHOFDOLEURDGDQHOOR'2 PP
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Inspection method for bush size
Example: wall thickness S=2 mm
Inspecting gauge bore D2=39,013 mm
plug gauge (go) d=35,00 mm
plug gauge (no go) d=35,070 mm
d=35,062 ~ 35,00 When bush is pressed into ring gauge D2=39,013mm
D2=+0,13 mm gauge test C acc.to DIN 1494, part 2
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Tolerance of inspecting gauge bore D2
Dimensioni nominali (mm)
Nominal sizes(mm)
18
18
Tolleranza del foro del calibro
Housing bore gauge tolerance
D2
D2
D2
D2
D2
D2
352&(662352'877,92PRODUCTION PROCESS
%521=2325262,132/9(5(
BRONZE POWDER
9$*/,2&/$66,),&$=,21(
MESH CLASSIFICATION
$720,==$=,21(
ATOMIZING
6,17(5,==$=,21('(/%521=2325262BRONZE SINTERING
%521=2,132/9(5('232,/9$*/,2
BRONZE POWDER AFTER MESH
38/,785$'(/1$6752,1$&&,$,2
STEEL BACK CLEANING
35,0$6,17(5,==$=,21(
FIRST SINTERING
58//$785$'(/1$6752
ROLLING OF STRIP STEEL
58//$785$'(/1$6752
ROLLING OF STRIP STEEL
6(&21'$6,17(5,==$=,21(
SECOND SINTERING
3
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Standard series sizes of bushes CJA - CJB - CJC
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Standard dimension of cylindrical bushes (mm)
d
'
Spessore
nominale
parete
Nominal
wall
thickness
(mm)
+
)RURGL
alloggiamento
H7
Housing
bore
12
12
12
14
14
14
16
16
1
15
17
17
16
18
18
18
23
23
22
25
25
1,5
24
27
27
25
28
28
26
28
32
32
34
34
32
36
35
39
39
38
42
42
44
44
45
55
55
55
65
65
2
2,5
36
65
75
75
75
85
85
I
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albero
f7
Journal
diameter
(mm)
f1
PP
f2
PP
10
15
20
25
30
50
12
1215
14
1415
15
1515
16
1615
18
1815
1825
22
2215
2225
24
2415
25
2515
2525
26
2615
2625
28
2815
2825
1,2
32
1,2
3215
3225
35
1,2
3525
38
1,2
3825
1,2
45
1,5
4525
1,5
55
1,5
1,5
65
1,5
1,5
75
1,5
1,5
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(mm)
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Torri di Quartesolo (VI) IT
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