• Measuring head consists of a carbide tipped moving anvil and an interchangeable stationary anvil with a carbide ball
  • Transmission lever system transfers movement of movable anvil to indicating instrument
  • The broad centering bridge ensures automatic centering in the bore
  • Resistant to temperature because the shank and transfer rod are made of heat resistant Invar steel
  • Highly resistant to wear and tear because of carbide tipped moving anvil
  • Constant measuring force due to built-in spring, eliminating user influence
  • Universally applicable and extremely versatile
    – Each instrument spans a broad measuring range
    – Quick and easy to adjust to any size (within its range)
  • Invar steel has a particularly low expansion coefficient
    – instrument totally insensitive to any kind of heat (including user body heat and increased ambient temperature)

Technical data

Order no. Product type Measuring range inches Measuring range mm Repeatability fw (µm) Error limit Ge (µm)
4474179
844 NB
0.79 – 2″
20 – 50
1 µm
4 µm
4474180
844 NB
2 – 4.33″
50 – 110
1 µm
3 µm
4474186
844 NB
4.33 – 11.81″
110 – 300
1 µm
2.5 µm

 

MARAMETER 844 NR SELF-CENTERING DIAL BORE GAGE

  • Measuring head consists of a carbide tipped, movable measuring bolt and an opposing interchangeable stationary anvil with carbide ball
  • Stationary measuring bolt can pivot through 180°, giving rise to a very long return travel path of up to 40% of the measured bore
  • Movements of the measuring bolt are transmitted to the indicating instrument via the ring segment
  • The broad centering bridge ensures automatic centering in the bore
  • Resistant to temperature because the shaft and transfer rod are made of heat resistant Invar steel
  • Carbide tipped measuring contacts for high wear resistance
  • Constant measuring force thanks to built-in and independent measuring force spring preventing external interference
  • Universally applicable and extremely versatile
    – Each instrument spans a broad measuring range
    – Quick and easy to adjust to any size (within its range)
  • Invar steel has a particularly low expansion coefficient
    – instrument totally insensitive to any kind of heat (including user body heat and increased ambient temperature)

Technical data

Order no. Product type Measuring range inches Measuring range mm Repeatability fw (µm) Error limit Ge (µm) Measuring depth mm
4474580
844 NR
2 – 2.8″
50 – 70
1 µm
2 µm
60 mm
4474590
844 NR
2.4 – 4″
60 – 100
1 µm
2 µm
60 mm
4474600
844 NR
3.2 – 6″
80 – 150
1 µm
2 µm
95 mm
4474610
844 NR
4.7 – 8.7″
120 – 220
1 µm
2 µm
107 mm
4474620
844 NR
7.1 – 14.2″
180 – 360
1.5 µm
3 µm
148 mm
4474630
844 NR
11.4 – 20.7″
290 – 530
1.5 µm
3 µm
170 mm