JSR ENTECH Catalog

Reference Gauge

Air Jet ปลั๊กเกจสำ �หรับแอร์ไมโครมิเตอร์

Leaf (Plate Spring) Type Measuring Head for Internal Diam

This is indirect type measuring head using plate spring with tungsten carbide ball point. It is applied to measurement of a width of 4mm or less or surfaces with a finish of 3.2 um Ry(Rmax) or more. In case of blind hole measurement, more deep point nearest a bottom can be measured.

for through hole

for bilnd hole

ØD

L1 10 10 10 10

L2 40 60 60 65

8-13 13-20 20-50 50-80

50 50 45 48

42 42 37 40

2 2 2 2

80-

(note)

(note) d>80 except above table is also available, but Ø32 x 170mm handle is used in this instance

Ball Contact Type Measuring Head for Internal Diam

Same as leaf type head, this is also indirect type measuring head using carbide ball point. It is mainly used for measurement in case that it is difficult to measure for leaf type measuring head. A further advantage of this type, two carbide balls floating in air current, which are located opposite each other, can roll over the measuring surfaces, thereby it prevents workpiece from the distortion or scratch.

for through hole

for bilnd hole

ØD

L1 10 20 20 20 30

L2 40 60 60 50

L2 40 60 60 65

12-13 13-20 20-50 50-80

30 45 45 35 50

24 30 30 35 45

4 5 5 5 5

80-150 (note)

Slit Nozzle Type Measuring Head (note) In case of 80-150, Ø32 x 170 mm handle is used.

NOTE : Helpful tool for measuring head like stop collars shall be re - quired if workpiece measured has special profile or it is not easy to be fixed.

[Examples of measurement] • Measurement for workpiece with narrow space or width. • Measurement for diam. near to bottom of blind hole. • Measurement for width of shallow slit. • Measurement for workpiece with helical spline. • Measurement for small diam. or multi-places where it is not possible to measure for indirect measuring head. • Measurement for tip circle diam. of serration included odd number of tooth. Differences listed below • This Bore Gauge is used to measure internal diameter connecting with DIal Gauge or Electronics Micrometer. • Easy changeover only to exchange measuring heads because handle or display part is common • Malfunction or accuracy degradation caused by dirt is reduced because of short sliding part.

Useful measurment stage can be extended by using slit nozzle type measuring head. It expands measurable range of non-contact measuring head for internal, external diam., and etc. Min.measurable width of workpiece In case of measuring head for back pressure type Air micrometer : 0.5 mm In case of measuring head for flow model Air micrometer : 0.5 mm

Special Bore Gauge ปลั๊กเกจสำ �หรับแอร์ไมโครมิเตอร์

Fitting holedia. for indicator

Ø8

ISSOKU

Measuring Pressure

0.3~0.8N

Measuring Point

Tungsten Carbide Ball

Repeatablity (Mechanical

0.5 μm

JSR Entech Catalogue 233 jetco@jet.co.th

jet@jet.co.th