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N o s e A s s e m b l i e s
To find the correct part number of a mandrel for a particular application, read the instructions below after you have gathered the following
information as per example alongside. Answers for the example are shown in
FASTENER NAME
FASTENER SIZE
DATASHEET
APPLICATION HOLE SIZE
CLEARANCE BEHIND APPLICATION
'REF.Nº' FROM NOSE JAW SELECTION TABLE
•
Subtract the minimum hole size recommended (AS REC.) in the fastener datasheet from the actual application hole size.
•
Turn to the page with the 'Mandrel Selection' table for your fastener, selecting either the imperial or the metric dimensions table
(pages 17-21).
-example: page 17.
•
Staring with the 'Standard Mandrel - Green' section, find your fastener size in the left-hand column.
•
If you selected a nose jaw which place you fastener, you should now be able to find a line within your fastener section with the same 'Ref
No.' as that from the 'Nose Jaw Selection' table.
mandrel follower spring part number. This line continues into the second half of the table for the '2nd' and '3rd' oversize mandrels.
•
Scan along the line to the 'hole size' columns and select which ever is the nearest or equal to the figure calculated in step one. You may
now read the mandrel part number next to the 'hole size'.
•
For Chobert
®
and Grovit
®
only, most mandrels are also available in a 'short reach' version (see illustration on page 20). Short reach
mandrels are used to minimise the possibility of the mandrel head contacting a read obstruction. This would result in the underside of the
fastener head not seating properly on the application surface, causing a lack on clench in the joint.
•
Whichever size mandrel you settle on, you will also need to check the 'P' figure against that mandrel is adequate. 'P' is the clearance
required for the mandrel head at the back of the application IN ADDITION to the length of the fastener protruding through the application,
as shown in the illustration on page 20.
•
You may now read the corresponding mandrel follower spring part number in the right-hand column of the table.
In all cases, satisfactory clenching of the joint should be assessed particularly if the size of the hole in your application is very close to the next
oversize hole condition, when it will be safe to select the greater size of mandrel to obtain a higher clench. REMEMBER that this will increase
the broach load and reduce the mandrel life.
B r i v ® - I m p e r i a l
For mandrel or mandrel follower spring selection, follow instructions above.
REF.
HOLE
FASTENER
Nº
SIZE
13
AS REC.
3/32" BRIV®
Brass only
14
AS REC.
15
AS REC.
1/8" BRIV®
Al. Alloy,
16
AS REC.
Brass, Steel
17
AS REC.
5/32" BRIV®
Al. Alloy,
18
Brass, Steel
AS REC.
19
AS REC.
5/32" BRIV®
St.Steel only
20
AS REC.
3/16" BRIV®
21
AS REC.
Al. Alloy,
Brass, Steel
22
AS REC.
23
AS REC.
3/16" BRIV®
St.Steel only
24
AS REC.
25
AS REC
6mm BRIV®
26
Al. Alloy, Steel
AS REC
REF.
HOLE
FASTENER
Nº
SIZE
13
+.008
3/32" BRIV®
Brass only
14
+.008
15
+.010
1/8" BRIV®
Al. Alloy,
16
Brass, Steel
+.010
17
+.010
5/32" BRIV®
Al. Alloy,
18
+.010
Brass, Steel
19
-
5/32" BRIV®
St.Steel only
20
-
21
+.010
3/16" BRIV®
Al. Alloy,
Brass, Steel
22
+.010
23
-
3/16" BRIV®
St.Steel only
24
-
25
+.010
6mm BRIV®
Al. Alloy, Steel
26
+.010
-example: 5.
STANDARD MANDREL - GREEN
HEAD
MANDREL
Ø
PART Nº
.072
07150-06013
.072
07150-06013
07271-06414
.092
.092
07271-07414
.110
07150-06015
.110
07150-07015
.120
07170-06805
.120
07170-07805
.141
07150-06016
.141
07150-07016
.150
07170-06806
.150
07170-07806
.179
07150-06018
.179
07150-07018
2ND OVERSIZE MANDREL - BLUE
HEAD
MANDREL
Ø
PART Nº
.079
07150-06213
.079
07150-06213
.102
07271-06614
.102
07271-07614
.120
07150-06215
.120
07150-07215
-
-
-
-
.151
07150-06216
.151
07150-07216
-
-
-
-
.189
07150-06218
.189
07150-07218
grey italic.
®
example
Chobert
1
/
"
8
Series 1125
0.1335"
Infinite
5 (standard flat)
This is your line 'Ref. No.' in which you will find both your mandrel and
-example: 07150-06104
1ST OVERSIZE MANDREL - YELLOW
HOLE
P
HEAD
SIZE
MAX.
Ø
.119
+.004
.076
.119
+.004
.076
.120
+.005
.097
.120
+.005
.097
.136
+.005
.115
.136
+.005
.115
.126
+.005
.124
.126
+.005
.124
.157
+.005
.146
.157
+.005
.146
.150
+.005
.1535
.150
+.005
.1535
.165
+.005
.183
.165
+.005
.183
3RD OVERSIZE MANDREL - RED
HOLE
P
HEAD
SIZE
MAX.
Ø
.126
-
-
.126
-
-
.133
-
-
.133
-
-
.149
-
-
.149
-
-
-
-
-
-
-
-
.170
+.012
.153
.170
+.012
.153
-
-
-
-
-
-
.177
-
-
.177
-
-
-example: 0.005.
1
®
-example
/
" Chobert
& Grovit
8
-example:
07150-06804.
MANDREL
P
PART Nº
MAX.
07150-06113
.123
07170-06873
07150-06113
.123
07170-06903
07271-06514
.126
07150-06814
07271-07514
.126
07150-07814
07150-06115
.142
07170-06875
07150-07115
.142
07170-07875
07170-06825
.132
07170-06875
07170-07825
.132
07170-07875
07150-06116
.164
07170-06876
07150-07116
.164
07170-07876
07170-06826
.156
07170-06876
07170-07826
.156
07170-07876
07150-06118
.171
07150-06846
07150-07118
.171
07150-07846
MANDREL
P
PART Nº
MAX.
-
-
07170-06873
-
-
07170-06903
-
-
07150-06814
-
-
07150-07814
-
-
07170-06875
-
-
07170-07875
-
-
-
-
07150-06316
.173
07170-06876
07150-07316
.173
07170-07876
-
-
-
-
-
-
07150-06846
-
01750-07846
-
®
.
SPRING
PART Nº
SPRING
PART Nº
-
-
-
-
19
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