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BTC44- Copper Tip Bayonet Thermocouple

SKU: BTC44
Copper Tip Sensor

BTC44- Copper Tip Bayonet Thermocouple

Copper Tip Bearing Thermocouple with Flexible Stainless Steel Armor for Reliable Bearing Temperature Monitoring

The BTC44 Copper Tip Bearing Thermocouple is engineered for accurate and dependable bearing temperature monitoring in rotating equipment. Its high-conductivity copper sensing tip, adjustable spring-loaded bayonet, and flexible stainless steel armored lead maintain reliable contact with the bearing housing, helping improve measurement accuracy while withstanding vibration and harsh industrial environments. Ideal for OEM equipment, predictive maintenance, and replacement applications, the BTC44 helps detect overheating early to reduce unplanned downtime and protect critical assets.

Copper Tip

The high-conductivity copper sensing tip transfers heat quickly from the bearing housing, providing faster and more responsive temperature measurements

High Accuracy

The spring-loaded copper sensing tip maintains reliable contact with the bearing surface, helping deliver stable and repeatable temperature measurements

Flexible Stainless Steel Armor

A rugged 316 stainless steel armored lead protects the cable from abrasion, vibration, impact, and mechanical damage in demanding industrial environments

High-Vibration

Engineered to withstand vibration and mechanical movement commonly found in motors, pumps, compressors, fans, and rotating equipment

Easy Installation

The adjustable bayonet assembly allows fast installation, simple immersion depth adjustment, and easy sensor replacement during maintenance

Custom Configuration

Available in multiple thermocouple types, wire insulation options, lead lengths, connector styles, and mounting accessories to meet OEM and replacement requirements

Download Datasheet

Quick Specifications

Thermocouple Type Type K,J & T
Sensor Construction Copper Tip with Flexible Stainless Steel Armored Lead
Bayonet Style Spring-Loaded Single Slot Bayonet
Junction Type Ungrounded
Sheath Material SS316 (Standard)
Probe Diameter 3/16" (4.76 mm)
Ideal for
Compressors
Electric Motors
Mining
OEM Equipment
Plastic
Predictive Maintenance
Pump
Turbine
Failure of bearings in an unexpected manner can lead to expensive downtime, the need for unplanned maintenance, and harm to important rotating equipment. The BTC44 Copper Tip Bearing Thermocouple fitted with Flexible Stainless Steel Armor and a Bayonet is designed to ensure reliable measurement of bearing temperature by keeping the sensing tip in continuous contact with the bearing housing. Due to the good thermal conductivity of its copper sensing tip, heat is transferred more quickly, and the spring-loaded adjustable bayonet mechanism aids in maintaining consistent contact, thus reducing air gaps which can lower the accuracy of the measurements.
Made for tough industrial environments, the BTC44 features a flexible armored lead made from 316 stainless steel together with a robust thermocouple design which is resistant to abrasion, vibration, and ordinary mechanical wear. The flexible armor not only guards the sensor cable but also makes installation easier in narrow areas and around moving machinery, so the instrument is appropriate for use both in new OEM equipment and for replacement installations. Since the adjustable bayonet cap permits the immersion depth to be set at the time of installation, it also allows for quick removal for regular maintenance without the need for special tools.
The BTC44 thermocouple is offered in Type J, K, and T configurations and has an ungrounded junction to enhance electrical isolation. Customers have the choice of Teflon-insulated wire (rated at 205°C) or fiberglass-insulated wire (rated at 510°C), as well as bare wire terminations, standard connectors, or miniature connectors to meet their particular installation needs. Optional accessories, such as threaded bayonet adapters and hose clamp adapters, give extra mounting flexibility for a wide variety of equipment.
The BTC44 is commonly used for monitoring electric motors, bearings, pumps, compressors, turbines, gearboxes, fans, and other types of rotating machinery, enabling maintenance crews to detect overheating before it causes unexpected failures. Designed for engineers, original equipment manufacturers, and maintenance specialists, the BTC44 provides reliable temperature measurements, has a robust build, and offers configurable features in order to support predictive maintenance programs and enhance equipment reliability.

Product Specifications

Review the standard specifications and available configuration options for the BTC44 Copper Tip Bearing Thermocouple. Product dimensions, materials, temperature ratings, and optional features may vary depending on the selected configuration

Thermocouple TypeType K,J & T
Sensor ConstructionCopper Tip with Flexible Stainless Steel Armored Lead
Bayonet StyleSpring-Loaded Single Slot Bayonet
Junction TypeUngrounded
Sheath MaterialSS316 (Standard)
Probe Diameter3/16" (4.76 mm)
Lead LengthCustom Configurable
Lead Wire InsulationTeflon (205°C) or Fiberglass (510°C)
Termination OptionsBare Ends, Standard Plug, or Miniature Plug
Industry StandardsASTM E230, IEC 60584

Spare Parts & Accessories

Complete your installation with compatible mounting accessories, connectors, and replacement components for the BTC44 Thermocouple.

Configure This Product

Open the product configurator to select available options and prepare your configuration.

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Frequently Asked Questions

Find answers to common questions about the BTC44 thermocouple

How does the spring-loaded bayonet improve measurement accuracy?+

The spring-loaded bayonet maintains constant pressure between the copper sensing tip and the bearing housing, helping eliminate air gaps and maintain reliable contact for more accurate and repeatable temperature measurements.

Which thermocouple type should I choose: J, K, or T?+

The correct thermocouple type depends on your operating temperature and equipment requirements. Type K is the most commonly used for industrial bearing monitoring, while Type J and Type T are available for specific applications

Can the BTC44 be used in high-vibration applications?+

Yes. The flexible stainless steel armored lead protects the cable from vibration, abrasion, and mechanical damage, making the BTC44 well suited for motors, pumps, compressors, turbines, and other rotating equipment

Can the BTC44 be supplied with a custom lead length and connector?+

Yes. The BTC44 is available with custom lead lengths, bare ends, standard plugs, miniature plugs, and matching connector jacks to suit your installation.

How do I select the correct bayonet adapter?+

The correct adapter depends on the mounting method, thread size, and equipment design. Threaded bayonet adapters and hose clamp adapters are available to suit different installation requirements

Can the BTC44 be supplied with a duplex thermocouple?+

The standard BTC44 is supplied with a simplex ungrounded junction. If your application requires redundancy or dual sensing elements, please contact Tempotech Controls to discuss a custom solution

Our mission is to provide an engineered custom solution for Temperature sensors with high quality, reliable products at a competitive price. We strive to deliver continuous growth and opportunity for employees, customers, and suppliers.

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Plot 51, Sector 7, IMT Manesar Gurugram , Haryana, 122050
1-888-TTC-TEMP
[email protected]
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