Product Description
- Features
- Specifications
- Dimensions
- Accessories
- Downloads
- Calibration
| ○ Universal Torque Sensors |
| ○ A great solution for general bi-directional torque testing applications requiring different sample sizes |
| ○ Three interchangeable chuck capacities and bit holder are available |
| ○ The R51 has superb overload protection |
| ○ Requires a Mark-10 indicator |
| ○ Member of the Plug & Test™ family of interchangeable sensors and indicators |
| ○ Outstanding overload protection |
| ○ Interchangeable chucks (order separately) |
| Accuracy | ± 0.20% of Full Scale + Indicator |
| Weight | From 0.6 kg / 1.4 lb |
| Manufacturer’s Warranty | 3 years (See individual statement for further details) |
| MODELS: 5i and 7i INDICATORS | ||||||||
| Capacity x Resolution | in.lbf | in.ozf | ft.lbf | cm.gf | mm.kgf | m.Nm | cm.N | N.m |
| MR51-10Z | – | 10 x 0.005 | – | 700 x 0.5 | 7 x 0.005 | 70 x 0.05 | 7 x 0.005 | – |
| MR51-20Z | – | 20 x 0.01 | – | 1400 x 1 | 14 x 0.01 | 140 x 0.1 | 14 x 0.01 | – |
| MR51-50Z | – | 50 x 0.02 | – | 3600 x 2 | 36 x 0.02 | 350 x 0.2 | 35 x 0.02 | – |
| MR51-12 | 12 x 0.005 | 192 x 0.1 | 1 x 0.0005 | – | – | – | 135 x 0.1 | 1.35 x 0.001 |
| MR51-50 | 50 x 0.02 | 800 x 0.5 | 4 x 0.002 | – | – | – | 570 x 0.5 | 5.7 x 0.005 |
| MR51-100 | 100 x 0.05 | 1600 x 1 | 8 x 0.005 | – | – | – | 1150 x 0.5 | 11.5 x 0.005 |
| MODEL: 3i INDICATOR | ||||
| Capacity x Resolution | in.lbf | in.ozf | mm.kgf | cm.N |
| MR51-10Z | – | 10 x 0.01 | 7 x 0.005 | 7 x 0.005 |
| MR51-20Z | – | 20 x 0.02 | 14 x 0.01 | 14 x 0.01 |
| MR51-50Z | – | 50 x 0.05 | 36 x 0.05 | 36 x 0.05 |
| MR51-12 | 12 x 0.01 | 192 x 0.2 | – | 135 x 0.1 |
| MR51-50 | 50 x 0.05 | 800 x 1 | – | 570 x 0.5 |
| MR51-100 | 100 x 0.1 | 1600 x 2 | – | 1150 x 1 |
| Optional Items | |
| G1016-1 | Jacobs chuck for R51, 0.028″-0.25″ |
| G1016-2* | Jacobs chuck for R51, 0.062″-0.375″ |
| G1016-3* | Jacobs chuck for R51, 0.078″-0.5″ |
| G1017 | Bit holder for R51, 1/4″ hex |
| 20-1025 | Spare chuck key for G1016-3, size KK |
| 20-1025-1 | Spare chuck key for G1016-1 and G1016-2, size KGA |
*Due to the increased possibility of overload resulting from a higher weight attachment used with a lower capacity torque sensor, these attachments are recommended for use only with an MR51-12 or higher capacity model.
Calibration and Repair Services
MRM provides Calibration and Repair Services for the
MR51-50 Mark-10 Torque Sensor
For a quote, please email us at [email protected]













































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