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MaraMeter 844 N

Self-Centering Dial Bore Gage

FEATURES

• Measuring head consists of a
carbide tipped moving anvil and
an interchangeable stationary
anvil with a hardened steel ball
• Transmission lever system trans-
fers movement of movable anvil
to indicating instrument
• The broad centering bridge
ensures automatic centering in
the bore
• Resistant to temperature because Application:
the shank and transfer rod are
made of heat resistant Invar steel
• Highly resistant to wear and tear • Measuring the diameter, roundness and conical form of a bore as well as
because of carbide tipped the distances of parallel plane surfaces
moving anvil
• Constant measuring force due to
built-in spring, eliminating user
influence TECHNICAL DATA
• Universally applicable and
extremely versatile Order no. Product type Measuring Measuring Design Probe Measuring Error Repeat-
- Each instrument spans a broad range range path depth limit G e ability f w
measuring range mm inch mm mm µm µm
- Quick and easy to adjust to any 4474000 844 N 18 – 50 .7 – 2” Standard, moveable anvil 1.3 115 2 0.5
size (within its range) carbide-tipped
• Extensive modular system is 4474001 844 N 35 – 100 1.4 – 4” Standard, moveable anvil 1.3 148 2 0.5
composed of measuring head, carbide-tipped
holder, extensions, Right angle 4474002 844 N 100 – 250 4 – 10” Standard, moveable anvil 1.6 230 2 0.5
attachments and depth stops carbide-tipped
• Invar steel has a particularly low 4474003 844 N 250 – 400 10 – 16” Standard, moveable anvil 2.6 366 3 1.5
expansion coefficient carbide-tipped
- instrument totally insensitive to 4474004 844 N 400 – 800 16 – 32” Standard, moveable anvil 2.6 366 3 1.5
any kind of heat (including 4474005 carbide-tipped
user body heat and increased 844 N 250 – 800 10 – 32” Standard, moveable anvil 2.6 366 3 1.5
carbide-tipped
ambient temperature)
• Package contains: measuring
holder, measuring head, anvil Order no. a b c d e
spindle, wooden case, excludes mm mm mm mm mm
indicator 4474000 5.3 8 115 63 22
4474001 8.5 12 148 80 22
4474002 11.5 18 230 100 25
4474003 16 24 366 110 28
4474004 17.5 24 366 110 28
4474005 17.5 24 366 110 28

412 MaraMeter | Indicating Measuring Instruments