Cylinder Boring Machine Inner Diameter Gauge, Bearing Boring Machine Inner Diameter Gauge, with Extended Rod, Cylinder Boring Gauge

Product Name: Bore Gauge

Product Application: Used to measure the bore diameter of bearing bores when a boring bar is installed

Measuring Range (Φ32 boring bar): Φ48–Φ66

Measuring Range (Φ45 boring bar): Φ62–Φ200

Main Probe Travel: 1.5 mm

Dial Indicator Reading: 0.01 mm

Weight: 1.5 kg

Instruction 1: When the bore gauge is in its free state, insert the dial indicator into the clamp, compress it by one turn (0.5 mm), and then lock it in place. Adjust the sliding scale to the nominal size of the bore to be measured, and then tighten the nut.

Instruction 2: Calibrate the dial indicator to zero using the nominal size of the bore to be measured (the optimal position of the main measuring tip is at the midpoint of its working stroke; therefore, it is most reasonable to calibrate the zero point with the main measuring tip at the midpoint of its working stroke).

Instruction 3: When measuring inside a hole, hold the handle with one hand and lightly press the positioning support with the other to ensure it enters the hole together with the main measuring tip. Using the measuring tip as a fixed point, gently swing the instrument along the center plane of the boring bar to find the maximum reading. Calculate the arithmetic mean of these readings to determine the actual dimension of the hole being measured.

Instruction 4: Clean the instrument thoroughly after use and store it in its proper position inside the wooden case.