Instruments
Mechanical Gauges: Rugged Reliability
This category covers 9 mechanical gauge (mechanical gauge / instrument) products, including Ø 85mm cable-drive mechanical speedometers, odometers, and tachometers, 52 mm Bourdon tube gauges for oil pressure, coolant temperature, oil temperature, vacuum, and turbo boost, and cable-drive counter wheel drivetrain components. All products are fully mechanical with no electronic components, intended for OEM / ODM development and aftermarket replacement use on commercial trucks, buses, passenger cars, agricultural and construction machinery, forklifts, generator sets, and commercial marine vessels.
MW82020 Mechanical Tachometer
Technical Specifications
|
Diameter |
3⅜" (Ø 85mm) |
|
Full-Scale Range |
0 – 3500 RPM |
|
Accuracy |
±2% of full scale |
|
Drive Ratio |
0.5 – 1.0 |
|
Backlight |
Incandescent lamp |
|
Adapter |
⅝-18 UNF |
|
Standards |
Compliant with SAE J678 |
|
Automotive-Grade Operating Temperature Range |
-40°C to +85°C |
|
Storage Temperature |
Per SAE J1810: -65°C to +85°C |
|
Ingress Protection |
IP67 (front side) |
Product Description
Overview
Ø 85mm cable-drive mechanical tachometer (RPM gauge) displaying engine RPM.
Fully mechanical gear-drive construction with no electronic components, intended for RPM gauge replacement and OEM / ODM dashboard integration on commercial trucks, buses, and agricultural or industrial machinery.
Full-scale range 0–3500 RPM, 0.5–1.0 drive ratio, ±2% full-scale accuracy, compliant with SAE J678. Automotive-grade -40°C to +85°C operating temperature, IP67 front-side ingress protection.
Key Features
▸ Full-Scale 0–3500 RPM, ±2% Accuracy
Per SAE J678; automotive-grade -40°C to +85°C operating temperature; IP67 front-side ingress protection.
▸ Drive Ratio 0.5–1.0
Fully mechanical gear drive, cable-drive transmission, no electronic components.
▸ Standard ⅝-18 UNF Adapter
Incandescent (LAMP) backlight; fits standard Ø 85mm instrument cutouts.
Applications
For any vehicle or equipment with cable-drive instruments — heavy-duty trucks, buses, coaches, passenger cars, agricultural machinery, construction equipment, forklifts, generator sets, and commercial marine vessels.