4-6 Support Fitting (35 / 50)
Clamp-and-ear fitting on the positioning tube that carries and supports ropes and positioning parts.
Specifications
| Model | 4-6 (35/50) |
|---|---|
| Drawing No. | 4-6 |
| Standard | TB/T 2075.4-2024 — Part 4: Non-limit-type positioning devices |
| Installation | Clamped on the positioning tube, connecting and supporting ropes and positioning parts |
The 4-6 support fitting is a clamp body with an integrated connection ear. Tightened onto the positioning tube (or the flexible locator's bent tube), it provides a support and connection point for tension ropes and positioning members, with its size matched to the tube diameter so the loaded joint transmits force reliably.
Two sizes cover the tube families — 35 and 50 — and the ear interfaces are standard for the rope and tension fittings of the non-limit positioning family.
Design Features
- Sizes 35 and 50 matched to the corresponding tube diameters
- Clamp grip reliable, ear transmits load smoothly
- Common part with flexible locators and rope assemblies
- Anti-corrosion finish for long-term outdoor service
The product is manufactured under CRCC railway product certification and an ISO 9001 quality management system, with incoming material inspection, in-process control on critical operations and batch-by-batch final inspection before delivery.
Henan Chuangwit Railway Equipment Co., Ltd. supplies this locator with selection calculations, matched fittings and site technical guidance for traction power projects. It clamps onto the positioning tube (or bent tube of a flexible locator) and provides an ear that carries ropes and positioning members — the support point of the joint. They correspond to the tube diameters the clamp fits; choose the size matching your tube. Tension ropes and positioning-family fittings with the standard ear interface, including the flexible locator's rope. It belongs to TB/T 2075.4 (non-limit-type positioning devices) but the rope interfaces are common across the positioning families.Frequently Asked Questions
What does the support fitting do?
What do the sizes 35 and 50 mean?
Which ropes connect to the ear?
Is it shared with the limit-type family?
Performance
Operating Conditions
Outdoor service at OCS registration points on mainline, high-speed and station structures, subject to suspension, wind, ice and dynamic pantograph loads as defined by the OCS design.
Mechanical Performance
Size-matched clamp transmits rope loads reliably; ear geometry suits the tension fitting family.
Applications
Flexible Registration
Supports the 4-4 locator rope run.
Station Yards
One fitting for tube-mounted connections.
Standard Assemblies
Interfaces match rope end fittings.
Harsh Climates
Anti-corrosion finish for outdoor duty.
