ThruBoreThruBoreINTERCONNECT SYSTEMS
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PRECISION ROTARY INTERCONNECTS / TBI SERIES

Thru-bore slip rings.
Room for more.

Keep the center open for your shaft. Specify power, signal and high-speed data around it with through-bore and hollow-shaft electrical slip rings.

Configure your slip ring ↗Compare five series →
Imperial + metricPower + dataApplication-led review
Illustrative thru-bore contact architecture with gold contact paths and an open central bore
Architecture concept · illustrative geometry, not a released product drawing.
01 / BORE CLEARANCE02 / CIRCUIT SCHEDULE03 / OPERATING DUTY

SPECIFY THE INTERFACE, THEN THE SERIES

Five paths through
a rotating assembly.

Choose by the constraint that drives your design: center clearance, data integrity, speed, axial space or operating environment.

01TBI-STD
Power + signal rotary interconnect concept

Standard Thru-Bore & Hollow-Shaft Slip Rings

Route a rotating shaft, service cable or mechanical linkage through the center while transferring power and low-level signals around it.

Explore TBI-STD →
02TBI-ETH
Data integrity rotary interconnect concept

Ethernet, EtherCAT & USB Slip Rings

Specify shielded rotating data paths for GigE Vision, industrial Ethernet and USB alongside the power circuits your rotating assembly needs.

Explore TBI-ETH →
03TBI-HS
Speed + low torque rotary interconnect concept

High-Speed & EO/IR Gimbal Slip Rings

Start a speed, torque and signal review for compact rotary test fixtures and precision gimbals with limited mass and bearing drag.

Explore TBI-HS →
04TBI-PCK
Axial space rotary interconnect concept

Ultra-Thin Pancake Thru-Bore Slip Rings

Explore a flat annular contact arrangement when axial space is the limiting dimension and more radial room is available.

Explore TBI-PCK →
05TBI-VAC
Environment + load rotary interconnect concept

Vacuum & High-Current Slip Rings

Define a vacuum-compatible, high-current or sealed rotary interface for semiconductor equipment, wind pitch systems and crane cable reels.

Explore TBI-VAC →

POWER AND DATA SHARE SPACE

They still need
separate design attention.

Gold-alloy fiber brushes, dedicated signal routing and shielding are configuration choices. Define noise, thermal and protocol acceptance before approving a design.

Plan a mixed power + data path →

Mechanical fitBore, OD, installed length and mounting datums.

Electrical fitVoltage, current, protocol and lead schedule.

Duty fitSpeed, reversals, temperature and service conditions.

REPLACEMENT ENGINEERING

A model number is
the start of the review.

Evaluating an alternative to Moog, Cobham, Schleifring, LTN, Servotecnica or Focal? Compare the complete installed interface and test criteria before approving interchangeability.

Build your replacement checklist →
Concept mounting: rotor on independently supported shaft, stator tab restrained with compliance

Give the stator a flexible stop.

For a shaft-mounted design, secure the rotor as its drawing specifies and restrain the stator with an anti-rotation tab that accommodates misalignment. Avoid rigidly locking both sides. Mounting is model-specific; flange and capsule designs may differ.

Read the mounting checklist →

DEFINE THE ROTATING INTERFACE

Start with the bore.
Build the circuit schedule.

Send your shaft size, current, data interface and duty. Request a drawing and configuration-specific quotation.

Request engineering review ↗