Gaging Probe

MBB Series

The NewTek MBB Series gaging probes are spring-loaded AC LVDTs with excellent linearity, great precision and infinite resolution. Construction consists of stainless probe assembly and 8 mm diameter housing protected to IP-65.  Designed for a wide range of position measurement and dimensional gaging applications, they are available in ranges ±.040 in (±1.0 mm), ±0.100 in (±2.5 mm), and ±0.200 in (±5 mm).  The MBB Series features high precision linear ball bearings for smooth probe movement without stiction and excellent repeatability.

Input Voltage:            3 Vrms (Nominal)
Input Frequency:        5 KHz
Linearity:                    < ± 0.5% Full Range Max
Null Voltage:              0.5% Full Range
Hysteresis:                 <0.01% of Full Range Typical
Repeatability:            <0.01% of Full Range Typical

Operating Temperature:      15° F to 175° F (-10° C to 80° C)
Thermal Coefficient:            <-0.01%/°F (< -0.02%/°C) of Full Range

Housing:              Stainless Steel with Optional 3/8-40, UNS2A External Thread (MBT series)
Core:                    Hi-permeability nickel-iron alloy
Magnet Wire:       Film insulated copper
Connector:           Cable With Flying Leads
Probe:                  Tungsten Carbide


  • Diameter abailable in .315 in (8 mm) and .375 in (9.5 mm)
  • Extremely reliable with greater than 100 million cycles
  • Measurement ranges ±.040 in (±1.0 mm), ±0.100 in (±2.5 mm), and ±0.200 in (±5 mm).
  • Linearity < .5% of Full Range
  • Repeatability of 0.15 µm
  • Available with threaded sleeve and jam nuts (MBT-375)


  • Dimensional Gaging
  • Metal Component Gaging
  • Materials Testing
  • Roundness Measurements
  • Automotive Testing


Dimensions & Wiring



NewTek products are warrantied against defective materials and workmanship for a period of one (1) year from the date of delivery to the original purchaser. NewTek accepts no liability for damages in the misuse of our products.

Contact NewTek Sensors to discuss your requirements