3-2 Registration Bracket (Types A / B / D)
Rotating bracket sleeved on the positioning tube that carries the locator through its hook.
Specifications
| Model | 3-2 (A / B / D) |
|---|---|
| Drawing No. | 3-2 |
| Standard | TB/T 2075.3-2024 — Part 3: Limit-type positioning devices |
| Installation | Sleeved on the positioning tube, supporting the locator with a rotating fit |
The 3-2 registration bracket is sleeved onto the positioning tube and carries the locator: its rotating part engages the locator hook, letting the locator swing about the tube axis within a designed range so the registration follows the dynamic movement of the contact wire without sticking.
Three types cover the assembly situations: Type A (straight) for normal registration, Type B (bent, φ55 class) and Type D (head-span type, for φ9–11 registration rope), covering positive registration, negative registration and head-span installations.
Design Features
- A / B / D types cover positive, negative and head-span registration
- Rotating fit tuned so the locator swings freely without catching
- Clamp connection to the positioning tube is reliable with convenient hole adjustment
- 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 is the swivel seat of the positioning device: sleeved on the positioning tube, it carries the locator hook and lets the locator rotate slightly so the registration follows the dynamic movement of the contact wire. Type D is the head-span version, made for φ9–11 mm registration rope in station head-span structures instead of tube-mounted registration. Type A is the straight bracket for ordinary registration points; Type B is the bent bracket in the φ55 class, used where the geometry of the registration point needs the offset. Yes — the clamp bolts allow the bracket to be set anywhere along the tube and re-tightened during erection or maintenance.Frequently Asked Questions
What does the registration bracket do?
When is Type D used?
What is the difference between Types A and B?
Can the bracket position be adjusted on the tube?
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
Rotating interface carries the locator hook through the full designed swing range; clamp faces grip the tube without deformation.
Applications
Mainline Registration
Types A / B for interstation and station points.
Head-Span Stations
Type D pairs with φ9–11 registration rope.
Dynamic Duty
Free rotation follows contact wire movement.
Standard Systems
Interfaces match the TB/T 2075.3 family.
