Marameter | Self-centering dial bore gage

Marameter 844 NH

Art. no. 4475005

Self-centering dial bore gage Marameter 844 NH
Measuring range mm 250 - 800 mm mm
Design: Standard, moveable anvil and stationary anvil carbide-tipped
Package contains: measuring holder, measuring head, anvil spindle, wooden case, excludes indicator

Marameter 844 NH
  • Measuring head consists of a carbide-tipped, movable measuring pin and an opposing interchangeable stationary counter probe with carbide ball
  • Movements of the measuring pin are transmitted to the indicating instrument via the ring segment
  • The broad centering bridge ensures automatic centering in the bore
  • Insensitive to temperature due to both the shaft and the transfer rod being made from Invar steel
  • Carbide-tipped measuring contacts for high wear resistance
  • Constant measuring force thanks to inbuilt measuring force spring. Measuring results are therefore independent of personal sense of touch
  • Universally applicable. Every instrument spans a broad measuring range. Within this range it is quick and easy to adjust to any size
  • Measuring head, measuring instrument holder, depth extensions, right-angle attachments, and depth stops form a comprehensive modular system
  • Invar steel makes the inner measuring device insensitive to temperature influences of any kind. Body heat from the user or a rise in ambient temperature in the workplace have virtually no influence on measuring results

Product type 844 NH
Measuring range mm 250 - 800 mm
Measuring range inch 10 - 32"
Distance of movable anvil_mm 2.6 mm
Repeatability fw (µm) 1.5 µm
Error limit Ge (µm) 3 µm
Measuring depth mm 336 mm
Dimensions a 17.5 mm | b 24 mm | c 366 mm | d 110 mm | e 28 mm |
Dimensional drawing 1

Variety of applications for our products

  • Measuring the diameter, roundness and conical form of a bore as well as the distances of parallel plane surfaces
Label Art. no. Product type Measuring range mm Clamping range in mm
4474063 Measuring depth extension
844 Nv
4474063 844 Nv 250 - 800 mm
4474064 Measuring depth extension
844 Nv
4474064 844 Nv 250 - 800 mm
4800123 Holder
420 h
4800123 100 - 420
4800124 Holder
420 h
4800124 400 - 820
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