marposs M1 Star MBG, Instruction Manual, Page: 44 / 58

44
7
LIST OF
SPARE PARTS
7.4 PLUG GAUGE
All the plug gauges are supplied as spare parts. Their coding is based on their technical
specifications. Below there is a representation of the pattern of the coding of the plug
gauges.
T
3
Measuring Unit :
M =mm
N =inch
See table below
Minimum diameter bore:
expressed in mm if the measuring unit is M
expressed in mm if the measuring unit is N
mm
2,5
0.0984”
R 1
Plug
Gauge
type
MBG-B
0.1181”-0.1575”
0.1575”-0.2165”
0.2165”-0.2953”
0.2953”-0.3740”
0.3740”-0.5905”
0.5905”-0.7874”
0.7874”-1.0236”
1.0236”-11.811”
0.1181”-0.1575”
0.1575”-0.2165”
0.2165”-0.2953”
0.2953”-0.3740”
MBG-BC
Dimension
C
ø
MIN
Bore
Radius
Contact ( 1 )
R 2
inch
3
0.1181”
3,5
0.1378”
1,5
0.0590”
3-4
4-5,5
5,5-7,5
7,5-9,5
9,5-15
15-20
20-26
26-300
3-4
4-5,5
5,5-7,5
7,5-9,5
C D
E
F
G H
A B
mm
R 1
Plug
Gauge
type
MBG-T
0.2165”-0.2953”
0.2953”-0.3740”
0.3740”-0.5905”
0.5905”-1.0236”
1.0236”-1.5748”
1.5748”-11.811”
0.1181”-0.1575”
0.1575”-0.2165”
0.2165”-0.2953”
0.2953”-0.3740”
0.3740”-0.5905”
0.5905”-1.0236”
1.0236”-11.811”
MBG-SB
Dimension
C
ø
MIN
Bore
Radius
Contact (
1
)
R 2
inch
6
0.2362”
8 - 0.3150”
1
0.0394”
5,5-7,5
7,5-9,5
9,5-15
15-26
26-40
40-300
3-4
4-5,5
5,5-7,5
7,5-9,5
9,5-15
15-26
26-300
P Q
R S
Y Z
Example of ordering code:
1. A MBG plug gauge has to be ordered, to measure a blind bore of 9,5mm
of diameter with a roughness Ra
≤
2 µm and C=1 mm
• 3TM009503Y
2. A MBG plug gauge has to be ordered, to measure a blind bore o 11 mm
of diameter with a roughness Ra
≤
2 µm and C=3 mm
• 3TM010991E
3. A MBG plug gauge has to be ordered, to measure a through bore of
1.757” of diameter with a roughness Ra >2 µm and C=8 mm (0.3150”)
• 3TN017560S
+0.016
+0,003
+0.002
- 0.009
+0.001
- 0.001”