Micrometer Head
Precision Lead Screws
• Mitutoyo manufactures simple and economical precision lead screws for precise positioning mechanisms and fine-feed mechanisms, in addition to the conventional micrometer heads.
• Mitutoyo also manufactures lead screws with special specifications, such as 0.25 mm pitch as well as those with the standard 0.5 mm feed pitch and with dimensions and forms that meet customer's requirements.
Main applications: • Precision feed stages • Fine adjustment of optical elements (mirrors, prisms) • Fiber optic centering devices • Various assembly and adjustment jigs
Drive motor
B
Pinion
AS-25
Precision lead screw
AS-13
AS-6.5
Micrometer Head
Typical Application
SPECIFICATIONS
Feed pitch (mm)
Feed accuracy (µm)
Stem diameter (mm)
Tip diameter (mm)
Tail diameter (mm)
Screw nominal diameter
Sleeve diameter (mm)
Range (mm)
Measuring face
Mass (g)
Order No. Model*
04AZA160 AS-6.5 04AZA161 BS-6.5 04AZA162 AS-13 04AZA163 BS-13 04AZA164 AS-25 04AZA165 BS-25
10 11 27 30 61 64
±5 ø6 0
0 -0.01
0 - 6.5
ø3.5 ø3
M4.5×0.5 ø7
-0.008
Hardened
ø9.5 0
0 -0.012
0 - 13
ø5
0.5
ø10.5
ø5
-0.009
±2
M7.35×0.5
ø10 0
0 -0.015
0 - 25
ø6.35 ø6
ø12 Carbide tip
-0.009
• Measuring face: Material/Alloy tool steel ( AS-25 and BS-25 are Carbide tip), Hardness/60 HRC or more ( AS-25 and BS-25 are 90 HRA or more), Lapped • Durability: 100,000 operations are guaranteed (use condition: 4 kg load; 2 kg for AS-6.5 and BS-6.5 ) * AS type: Flat spindle tip without nut, BS type: Spherical spindle tip with nut
DIMENSIONS
Type AS: Plain Stem
Unit: mm
Plain stem
Spindle (material: SKS hardened steel)
Sleeve (material: free-cutting steel, black oxide finish) Nominal diameter of screw
Stem diameter
L 3
L 1
L 2
L 4
L
Type BS: Stem with Locknut
スリーブ （材質：快削鋼、黒染め） ねじ呼び径
スピンドル （材質： SKS 焼入鋼）
Stem locknut
Spherical face
Spindle (material: SKS hardened steel)
Sleeve (material: free-cutting steel, black oxide finish) Nominal diameter of screw
Stem locknut
Stem diameter
Order No. 04AZA160 04AZA161 04AZA162 04AZA163 04AZA164 04AZA165
L L1L2L3L4L5
ストレートステム
9
—
L3
39 15 14.5
6
7.5
3
L1
L2
L4
—
L
57.5 25 21.5 15.5 8
L 3
L 5
4
L 1
L 2
L 4
—
96.5 42 39.5 27 10
4
L
B-124
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