4
Carlton
®
Maintenance and Safety Manual
Saw Chain Components
Saw chain pitch
The word
pitch
actually means size. The larger the pitch
(measured in thousandths of an inch) the larger the saw chain.
Pitch is determined by measuring the distance between the
centerlines of three consecutive rivets and dividing this distance
in half. In other words, 3/8" pitch saw chain (.375") measures
3/4" (.750") between the centerlines.
Saw chain gauge
Gauge
refers to the thickness of
the drive link tangs that fit into
the guide bar groove and is also
measured in thousandths of an
inch. There are four standard
gauges for hand held chain saw
cutting chain: .043", .050", .058"
and .063". It’s essential for the
saw chain’s gauge to match the
guide bar gauge.
Carlton
®
Technical Tip
1. Saw chain pitch must match the pitch of the drive sprocket
and the guide bar sprocket tip.
2. Saw chain gauge must match the gauge of the guide bar.
Any mismatch of the chain saw parts will lead to premature
failure of the saw chain, guide bar, or drive sprocket.
This distance divided by 2
1.1 mm
.043"
Tang
.050" 1.3 mm
.058" 1.5 mm
.063" 1.6 mm
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