KFRB Series
Foil Strain Gages

  • Good Design

KFRB

Summary

The KFRB series foil strain gages are durable and easy-to-use high-grade strain gages. The gage element is sandwiched between heat-resistant polyimide base and cover, thereby letting it exhibit high performance in a wide temperature range.

Click here for the [Typical Strain Gage Bonding Procedure]
Click here for the [Strain Gages with Pre-attached Lead Cables]

Major Properties

Materials Resistive element NiCr alloy foil
Materials Base Polyimide
Operating temperature in combination with major adhesives after curing (°C) PC-600: -196 to 150ºC
CC-33A: -196 to 120ºC
CC-35: -30 to 120ºC
CC-36: -30 to 100ºC
EP-340: -55 to 150ºC
Operating temperature in combination with major leadwire cables (°C) Polyester-coated copper cable: -196 to 150ºC
Vinyl-coated flat cable(L-6, L-7): -10 to 80ºC
Middle-temperature cable(L-11, L-12): -100 to 150ºC
Self-temperature-compensation (°C) 0 to 150ºC
Applicable linear expansion coefficients (×10-6/℃) 11, 16, 23
Strain limits at normal temp. (approx. %) 2.2 (Strain measurement at mid temperature, for transducers)
Fatigue lives at normal temp. (times) 1x106 (±1500μm/m)
(Strain measurement at mid temperature, for transducers)

Contents

Besides the silver-covered copper lead wire, KFRB strain gages with pre-attached lead cables are available on request.
When ordering, suffix the lead-wire cable code to the model number with a space in between.

E.g.
With 2 polyester-coated copper wires 10 cm long
→ KFRB-02N-120-C1-11 N10C2
With a vinyl-coated flat 3-wire cable 5 m long
→ KFRB-05-120-D25-11 L5M3S

For details, please refer to the [Strain Gages with Pre-attached Lead Cables]

Products table

All display

KFRB120Ω Uniaxial

KFRB
    • Good Design

Model Dimensions (mm)
Gage(Grid) Base
Length Width Length Width
KFRB-5-120-C1-11 5 2.5 10 3.7
KFRB-5-120-C1-16 5 2.5 10 3.7
KFRB-5-120-C1-23 5 2.5 10 3.7
KFRB-2-120-C1-11 2 2.5 6 3.7
KFRB-2-120-C1-16 2 2.5 6 3.7
KFRB-2-120-C1-23 2 2.5 6 3.7
KFRB-1-120-C1-11 1 1.5 4 2.7
KFRB-1-120-C1-16 1 1.5 4 2.7
KFRB-1-120-C1-23 1 1.5 4 2.7
KFRB-05-120-C1-11 0.5 1.4 3.3 2.7
KFRB-05-120-C1-16 0.5 1.4 3.3 2.7
KFRB-05-120-C1-23 0.5 1.4 3.3 2.7
KFRB-02-120-C1-11 0.2 1 2.5 2.2
KFRB-02-120-C1-16 0.2 1 2.5 2.2
KFRB-02-120-C1-23 0.2 1 2.5 2.2
KFRB-02N-120-C1-11 0.2 0.9 1.6 1.2
KFRB-02N-120-C1-16 0.2 0.9 1.6 1.2
KFRB-02N-120-C1-23 0.2 0.9 1.6 1.2

KFRB 350Ω Uniaxial

KFRB
    • Good Design

Model Dimensions (mm)
Gage(Grid) Base
Length Width Length Width
KFRB-02-350-C1-11 0.2 1.5 3 2.7
KFRB-02-350-C1-16 0.2 1.5 3 2.7
KFRB-02-350-C1-23 0.2 1.5 3 2.7
KFRB-05-350-C1-11 0.5 1.5 3.3 2.7
KFRB-05-350-C1-16 0.5 1.5 3.3 2.7
KFRB-05-350-C1-23 0.5 1.5 3.3 2.7
KFRB-1-350-C1-11 1 1.5 4 2.7
KFRB-1-350-C1-16 1 1.5 4 2.7
KFRB-1-350-C1-23 1 1.5 4 2.7
KFRB-2-350-C1-11 2 2.4 6 3.7
KFRB-2-350-C1-16 2 2.4 6 3.7
KFRB-2-350-C1-23 2 2.4 6 3.7
KFRB-5-350-C1-11 5 2.4 10 3.7
KFRB-5-350-C1-16 5 2.4 10 3.7
KFRB-5-350-C1-23 5 2.4 10 3.7

KFRB120Ω Triaxial, 0°/90°/45°

KFRB
    • Good Design

Model Dimensions (mm)
Gage(Grid) Base
Length Width Length Width
KFRB-1-120-D25-11 1 1.5 φ8
KFRB-1-120-D25-16 1 1.5 φ8
KFRB-1-120-D25-23 1 1.5 φ8
KFRB-05-120-D25-11 0.5 1.4 φ7.5
KFRB-05-120-D25-16 0.5 1.4 φ7.5
KFRB-05-120-D25-23 0.5 1.4 φ7.5

KFRB 350Ω Triaxial, 0°/90°/45°

KFRB
    • Good Design

Model Dimensions (mm)
Gage(Grid) Base
Length Width Length Width
KFRB-05-350-D25-11 0.5 1.5 φ7.5
KFRB-05-350-D25-16 0.5 1.5 φ7.5
KFRB-05-350-D25-23 0.5 1.5 φ7.5
KFRB-1-350-D25-11 1 1.5 φ8
KFRB-1-350-D25-16 1 1.5 φ8
KFRB-1-350-D25-23 1 1.5 φ8

KFRB120Ω Uniaxial 5-element, for concentrated stress measurement

KFRB
    • Good Design

Model Dimensions (mm)
Gage(Grid) Base
Length Width Length Width
KFRB-015-120-D9-11 N10C2 0.15 0.34 6 3
KFRB-015-120-D9-16 N10C2 0.15 0.34 6 3
KFRB-015-120-D9-23 N10C2 0.15 0.34 6 3

KFRB120Ω Uniaxial 5-element, for concentrated stress measurement

KFRB
    • Good Design

Model Dimensions (mm)
Gage(Grid) Base
Length Width Length Width
KFRB-015-120-D19-11 N10C2 0.15 0.45 6 3
KFRB-015-120-D19-16 N10C2 0.15 0.45 6 3
KFRB-015-120-D19-23 N10C2 0.15 0.45 6 3

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