Micrometers
Disc Micrometers SERIES 369, 227 — Non-rotating Spindle Type • Can be used for making root tangent
• Measurable range of gear pitch: 0.5 to 6 module ( series 227 : 0.4 to 3 module). • Equipped with Ratchet Stop for constant measuring force.
measurements on spur gears and helical gears. • Heat-insulated frame, tapered (on the anvil side) for hard-to-reach places. • Non-rotating spindle eliminates torque on workpiece.
B
Quickmike type 369-421-20
SPECIFICATIONS Inch/Metric Order No. Range (in)
Parallelism (in)
Measuring force (N)
Anvil dia. (in)
Flatness (in)
Resolution
Accuracy* (in)
QuickMike type 369-421-20 369-422-20 Metric Order No. QuickMike type 369-411-20
0 - 1.2 0.00005 in/ 0.001 mm 1 - 2.2
ø0.787
±0.0002
0.00004 0.0002
3 - 8
Range (mm)
Resolution (mm)
Anvil dia. (mm)
Flatness (µm)
Parallelism (µm)
Measuring force (N)
Accuracy* (µm)
0 - 30
1
4
3 - 8
0.001
ø20
±4
369-412-20 25 - 55 QuickMike type adjustable measuring force 227-221-20 0 - 15
0.5 - 2.5
0.001 ø14.3
±4
1
3
227-223-20
0 - 10
2 - 10
• Power source: SR44 battery (1 pc.), 938882 included as standard * E MPE (ISO 3611:2023 and ASME B89.1.13-2013)
a
L
25 6.4
59
72.4
a c
L
30 16.3
69.6
50.4
(Minimum measuring length)
c
(Minimum measuring length)
DIMENSIONS
Unit: mm
Quickmike type
a
L
25 6.4
59
72.4
a c
L
30 16.3
69.6
50.4
(Minimum measuring length)
c
(Minimum measuring length)
Range (mm)
L
a
b
c
0 - 30
0
8.5 36
13.5
25 - 55
25 10.3 47
a
25
6.5
71
72.4
L (Minimum measuring length)
c
Quickmike adjustable measuring force type
(Minimum measuring length) c a L 13.8 (18.8)
69.6
72
a
25
6.5
71
72.4
L (Minimum measuring length)
c
Range (mm)
L
a
b
c
( ): 227-223-20
0 - 15 0 - 10
69.6
72
(Minimum measuring length) c a L 13.8
0
6.2 25 5.2
（ 18.8 ）
Need Calibration?
B-38
( ): Order No. 227-223-20
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