CBTG1BG Push-Pull Connector for CMM Probe Heads 2026: 1B Series 16-Contact 2 A Plug for Motorised Probe Head Cable Assemblies

The CBTG1BG-SMSM16-D72B is a CBTG1BG push-pull connector for CMM probe heads — a 1B series straight cable plug with 16 low-voltage contacts, 34–28 AWG conductor support, a push-pull self-latching mechanism, a 2 A rated current, maximum contact resistance of 8.7 mΩ, 6.30–7.20 mm cable diameter compatibility, a 5,000 mating cycle endurance rating and shielding of 75 dB at 10 MHz and 40 dB at 1 GHz. Every specification in this guide is backed by the precision measurement interconnect engineering of Spring Technology.

Pain point: Routing 16 separate low-voltage circuits — motor power, control, feedback, probe signals and status detection — through the confined space between a motorised probe head and the CMM quill, while keeping measurement signals electrically clean?

Core answer: Spring Technology supplies the CBTG1BG-SMSM16-D72B, a 1B series straight cable plug serving as a CBTG1BG push-pull connector for CMM probe heads. A coordinate measuring machine measures the geometric dimensions and positional accuracy of manufactured components, and a motorised probe head lets the machine automatically change or orient the probe during measurement — so the electrical interface between probe head and CMM must accommodate multiple low-voltage circuits in a compact cable assembly. The 16-contact configuration provides sufficient capacity for complex multi-signal interfaces while maintaining the compact form factor of the 1B connector family.

This CMM probe head connector is built on the 1B series push-pull platform, a compact circular connector family for professional measurement and instrumentation equipment.

• Latching Mechanism: Push-pull self-latching system (secure connection by simple insertion, released without additional rotation)
• Recommended Hardware: Spring Technology Circular Connector
• Key Metric: 16 low-voltage contacts; 2 A rated current; max. 8.7 mΩ contact resistance; 5,000 mating cycles

Motorised probe heads combine motion, sensing and measurement in one small assembly. The design advantages below explain why this CBTG1BG push-pull connector for CMM probe heads suits probe-head cable assemblies:

• Sixteen low-voltage contacts let one connector carry motor power, motor control, feedback signals, probe signals, reference voltage, ground, status signals and auxiliary control lines — simplifying the cable architecture between the CMM quill and the motorised probe head where multiple independent circuits are required.

• CMM operators may need to replace probe heads, change measurement configurations or disconnect the probe assembly during maintenance. The push-pull interface establishes a secure connection with a simple insertion operation and releases without the additional rotation required by many threaded connectors, making probe configuration and maintenance more convenient.

• With a maximum specified contact resistance of 8.7 mΩ, the connector maintains a consistent electrical connection where a probe head transmits both power and low-level control or feedback signals through the same cable assembly, reducing unwanted resistance at the interface.

• The 1B family is a compact push-pull connector series. The format suits CMM probe systems because the probe head and quill have limited physical space, and a smaller connector helps designers manage cable routing around the measurement head without increasing the size of the probe assembly.

• CMM systems undergo frequent configuration changes during inspection work, with probe heads and cables disconnected during servicing, calibration, transportation or reconfiguration. A 5,000 mating cycle rating contributes to the long-term serviceability of the connector interface.

• Minimum shielding performance of 75 dB at 10 MHz and 40 dB at 1 GHz helps designers control electromagnetic interference around the cable connection, supporting a cleaner signal environment for the measurement and control circuits in a probe system.

• Support for cable jackets of approximately 6.30–7.20 mm provides a practical size range for multi-core probe-head cable assemblies, where the cable must remain flexible enough for the moving probe system while carrying sufficient conductors for multiple electrical functions.

• With 16 low-voltage contacts, a 2 A rated current and 0.5 mm contact diameter, the connector suits applications where many relatively low-current control and feedback circuits are integrated into one connector — combining motor control, feedback, sensing and auxiliary signals for a motorised probe head.

• Specifications include 100 g shock resistance and 15 g vibration resistance over 10~20000 Hz, with IP50 protection for indoor and protected environments. CMM equipment normally operates in controlled environments, but probe assemblies are still subject to movement, cable handling and vibration.

• The 1B platform specifies an operating temperature range of -45 °C to +125 °C, providing additional design margin for specialised measurement systems or manufacturing environments, where the equipment environment is normally much less demanding.

The 1B shell is part of Spring Technology’s push-pull self-locking connector family, used in precision measurement, machine tool, test and industrial equipment. The same platform serves this probe-head connector and scales across pin counts and cable variants.

• Shell: 1B shell size, with 00B, 0B and 2B siblings for smaller or larger layouts.
• Pin counts: 2 to 16 contacts on the 1B shell, including the 16-contact configuration in this order.
• Termination: solder termination with cable collet and bend relief options.
• Cable range: cable openings from 2.2 to 7.5 mm across the 1B platform.

• Custom contact allocations and part numbers (such as the CBTG1BG-SMSM16-D72B) matched to each probe head’s motor, feedback and sensing plan.
• Multi-core probe-head cable assemblies with the required jacket diameter and flexibility.
• Shielding and EMC verification for measurement circuits.
• Pre-wired quill and probe-changer harnesses.

Precision measurement depends on an interface that moves with the probe. This CBTG1BG push-pull connector for CMM probe heads serves the machine’s measurement chain.

The detachable cable connecting a motorised probe head with the CMM quill or control system carries motor, feedback and probe circuits in one assembly.

Motorised probe positioning systems consolidate motor control and position feedback circuits into a single multi-contact cable interface.

Replaceable probes and probe modules benefit from push-pull connection during system configuration, as do other multi-signal interfaces in precision dimensional measurement equipment.

This 1B connector delivery shows how Spring Technology serves precision measurement equipment — from the 16 contacts and 8.7 mΩ resistance of the CBTG1BG-SMSM16-D72B to its compact body and shielding, every detail was aligned with the customer’s CMM motorised probe head requirements. Spring Technology also provides professional customization services for both push-pull connectors and cable assemblies, offering tailored solutions to meet your specific technical requirements.

For more information about our 1B series connectors or to discuss your requirements, contact us at [email protected] or [email protected], or visit our website.

Building a CMM or motorised probe head system? Send us your circuit and cable requirements — our engineering team will respond with a tailored CBTG1BG push-pull connector proposal for your CMM probe heads within 24 hours.

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