Technical data

136
- The brass housing hole is in the only category reported
below.
- The standard brass diameter after driving is variable on the
basis of a coupling selection.
- The brass seats into the crankcases are classified into 2 cate-
gories as for the driving shaft Cat. 1 and Cat. 2.
- Brasses are divided into 3 categories according to their thick-
ness. See the table below:
Match the shaft with two category 1 shoulders with category 1
crankcase (or cat. 2 with cat. 2).
A spare crankcase cannot be combined with a driving shaft with
mixed categories. Spare shafts have half-shafts of the same
category.
A
B
C
TYPE
IDENTIFICATION
RED
BLUE
YELLOW
Bench
halfbearing
Type “A”
1,970 ÷
1,973
Type “A” Type “A”
1,9703 ÷
1,976
1,976 ÷
1,979
Brass
category
1
1
2
2
Half
crankcase
category
Brass inside
diameter
after
reassembly
Possibility of
assembly
A
B
C
29,025 ÷ 29,040
29,019 ÷ 29,034
29,028 ÷ 29,043
29,022 ÷ 29,037
Original
Original
Original
and spare
CAT. 1
CAT. 2
CAT. 1
CAT. 2
HALF-CRANKCASE
ENGINE HALFSHAFT
BRASS
CAT. 1
CAT. 2
CAT. 2
CAT. 1
B
B
A
C










