Chain Drive-Link Number Identification - Oregon CHAINSAW Maintenance And Safety Manual

CHAIN DRIVE-LINK NUMBER IDENTIFICATION

Nearly all OREGON
number (see below), followed by one or two letters (see page 9).
OREGON Part-number Examples: 18 H, 72LP, 91VG
®
The Numbers:
The numbers are stamped on the chain's drive links and indicate the
physical size of the chain (pitch and gauge).
CHAIN
NUMBER
11
16
18
20
21
22
25
26
27
33
34
35
58
59
72
73
75
90
91
95
8.
SAW CHAIN
chains are named by a part number made up of a
®
18 H, 72 LP, 91 VG
PITCH
3/4"
.404"
.404"
.325"
.325"
.325"
1/4"
.404"
.404"
.325"
.325"
.325"
.404"
.404"
3/8"
3/8"
3/8"
3/8"
3/8"
.325"
SAW CHAIN SAW CHAIN
GAUGE
MM
IN
.122" 3.1
.063" 1.6
.080" 2.0
.050" 1.3
.058" 1.5
.063" 1.6
.050" 1.3
.058" 1.5
.063" 1.6
.050" 1.3
.058" 1.5
.063" 1.6
.058" 1.5
.063" 1.6
.050" 1.3
.058" 1.5
.063" 1.6
.043" 1.1
.050" 1.3
.050" 1.3