Tripot Joint / Tripod Ball – CV Joint
Tripot CV Joint Components for Automotive OEMs
Hartford Technologies manufactures precision tripot CV joint components for automotive and off-road vehicle OEM applications that require tight tolerances, high crush strength, consistent torque transfer, and repeatable production quality.
A tripot CV joint, also commonly searched as a tripod CV joint, is used at the inboard end of a driveshaft or halfshaft. Hartford’s bearing specialists collaborate with automotive and off-road vehicle Tier 1 companies to design and manufacture production volumes of tripot joint components, including precision trunnions and related bearing-shaped components for CV joint assemblies. Harford currently does not sell the entire Tripot CV Joint assembly.
What Is a Tripot CV Joint?
A tripot CV joint is a type of constant velocity joint used at the inboard end of a driveshaft or halfshaft. It transfers torque at a constant speed while allowing movement between the transmission or differential and the wheel-side assembly.
A tripot joint assembly typically includes three bearing-shaped rollers mounted to a three-part yoke. These rollers fit inside a cup with matching grooves, which attaches to the differential. The rollers are mounted at 120° to one another and slide back and forth on tracks inside the housing.
A typical tripot CV joint can allow up to 50 mm of plunge travel and 26° of angular articulation, helping the driveline maintain smooth power transmission as the suspension and drivetrain move.
Tripot Joint Components Hartford Manufactures
Hartford Technologies manufactures critical tripot CV joint components used in automotive and off-road vehicle driveline assemblies. These parts require controlled material selection, tight dimensional tolerances, consistent hardness, and a polished surface finish so the rollers can move properly within the joint housing.
| Requirement | Hartford Capability |
| Application | Tripot CV joint components for automotive and off-road vehicle programs. These include trunnions, races, rings, and rollers. |
| Material | 52100 / GCr15 high-carbon, chromium-containing alloy steel tube and wire. |
| Manufacturing process | Blank cutting, OD grinding, ID grinding, width grinding, hardening, and polishing |
| Typical tolerance | ± .0001 for diameters and widths |
| Hardness | Rockwell C 60–65 |
| Finish | Polished to a high surface finish |
| Typical size range | 1” to 4” OD for trunnions, races, and rings. |
| Production fit | OEM and Tier 1 production-volume programs |
These tolerances are important because a set of rollers fits into the ID, while the OD rides in the cup with matching grooves. Small dimensional variation can affect fit, movement, and long-term performance inside the CV joint assembly.
How Hartford Manufactures Tripot CV Joint Components
Hartford’s tripot CV joint manufacturing process is built around tight dimensional control, repeatable production, and automotive quality expectations.
1. Application and Print Review
Hartford starts by reviewing the application, part drawing, OD, ID, width, production volume, performance requirements, and quality documentation needs.
2. Material Preparation
For trunnions, races, and rings a blank is cut from 52100 / GCr15 high-carbon, chromium-containing alloy steel tube. This material is used for its strength, wear performance, and suitability for precision bearing and CV joint component applications.
3. Precision Grinding
The blank is ground to the specified outside diameter, inside diameter, and width. Tolerances are typically tight because the component must interface with both the internal rollers and the matching grooves in the cup.
4. Heat Treatment
Finished parts are hardened to Rockwell C 60–65 for superior crush strength and high ductility.
5. Surface Finishing
Tripot CV joint components are polished to a high surface finish to support smooth movement inside the joint assembly.
6. Inspection and Production Release
Finished components are inspected against dimensional, hardness, surface finish, and customer quality requirements before being released into production.
Learn more about Hartford’s manufacturing model.
Built for Automotive and Off-Road Vehicle Programs
Hartford’s tripot CV joint components are designed for applications where part consistency, strength, and repeatable production quality matter.
Common program types include:
- Automotive driveshaft systems
- Automotive halfshaft assemblies
- Inboard CV joint assemblies
- Off-road vehicle driveline systems
- Tier 1 automotive supply programs
- High-volume OEM production applications
Hartford is best suited for engineered automotive programs where buyers need more than a commodity replacement part. The team supports custom component requirements, technical review, quality documentation, and production-volume manufacturing.
Related Automotive and Bearing Assembly Case Studies
Hartford’s tripot CV joint work is part of a broader automotive and custom bearing component platform. For buyers evaluating Hartford as a Tier 1 automotive supplier, these related case studies provide useful proof of experience.
The case studies page includes multiple automotive and custom bearing proof assets that are relevant to this page’s automotive OEM positioning.
Need a Tripot CV Joint Component for an OEM Program?
Hartford’s bearing specialists can review your drawings, dimensional requirements, production volumes, material requirements, surface finish needs, and automotive quality documentation requirements.
For the fastest response, include prints, target dimensions, production volume, application details, and any APQP, PPAP, SPC, or certification requirements.
Hartford’s Manufacturing Model for Critical Automotive Components
Hartford combines offshore cost advantages with US-led engineering, qualification, and quality control. For OEM and Tier supplier programs, the goal is to support cost-effective production without losing access to Hartford’s engineering, quality, and program management teams.
Every program is owned, qualified, and overseen by Hartford’s US engineering and quality teams from development through production. This model helps reduce the risk of tolerance drift, inconsistent quality, and supplier communication issues that can occur when offshore production is not properly controlled.
For tripot CV joint components, that means buyers can work with Hartford on:
- Application and drawing review
- Prototype and development support
- Production qualification
- Automotive quality documentation
- Global manufacturing flexibility
- Inventory and delivery planning
- Ongoing quality oversight
Quality Systems for Tripot CV Joint Components
Tripot CV joint components are critical driveline parts, so Hartford’s manufacturing process is supported by quality systems built for repeatability, traceability, and defect prevention.
Hartford follows Automotive Industry Action Group standards for Advanced Product Quality Planning. The APQP process is applied to new and recurring ball and bearing programs and is designed to support defect prevention, collaborative design review, productivity, and consistent quality.
Hartford can support quality and production requirements including:
- APQP
- PFMEA
- PPAP
- SPC
- Dimensional inspection
- Hardness testing
- Surface finish testing
- Failure analysis
- Lot traceability from raw material through finished product
Hartford Technologies is ISO 9001, ISO 14001, IATF 16949, and WBENC certified. Hartford’s quality lab capabilities include coordinate measuring machines, laser micrometers, gauges, Rockwell hardness testing, X-ray inspection, optical comparators, tensile testing, ICP plasma spectrometer chemical analysis, salt spray testing, profilometer surface finish testing, microstructure examination, failure analysis, and noise testing.
What to Include in Your Tripot CV Joint RFQ
To help Hartford evaluate your tripot CV joint component requirements, include as much of the following information as possible:
- Part drawing or print
- OD, ID, and width requirements
- Material requirements
- Hardness requirements
- Surface finish requirements
- Application or vehicle system
- Production volume
- Prototype or pre-production needs
- Target timeline
- Required quality documentation
- APQP, PPAP, PFMEA, SPC, or traceability requirements
- Any packaging, inventory, or delivery requirements
Hartford’s team can review your requirements and recommend the best manufacturing path for your tripot CV joint component program.
Frequently Asked Questions About Tripot CV Joint Components
What is a tripot CV joint?
A tripot CV joint is a constant velocity joint commonly used at the inboard end of a driveshaft or halfshaft. It helps transfer torque at a constant speed while allowing movement as the drivetrain and suspension change angle.
Is it called a tripot joint or tripod joint?
Both terms are commonly used. “Tripot” is often used in technical and manufacturing contexts, while “tripod CV joint” is also widely used in search and repair-related language. Hartford manufactures precision tripot CV joint components for OEM applications.
Where is a tripot CV joint used?
A tripot CV joint is typically used at the inboard end of a driveshaft or halfshaft, where plunge travel and angular articulation are required.
How does a tripot CV joint work?
A tripot joint assembly uses three bearing-shaped rollers mounted to a three-part yoke. The rollers fit inside a cup with matching grooves and slide along tracks inside the housing as the joint moves.
What are Hartford tripot CV joint components made from?
Hartford manufactures tripot CV joint components from 52100 / GCr15 high-carbon, chromium-containing alloy steel tube. Parts are ground to the specified OD, ID, and width, then hardened and polished.
What tolerances can Hartford hold on tripot CV joint components?
Hartford typically holds tight tolerances of ± .0001 for diameters and widths on these components, depending on the drawing and program requirements.
What hardness are Hartford tripot CV joint components finished to?
Finished parts are hardened to Rockwell C 60–65 for crush strength and ductility.
What size range does Hartford manufacture?
Hartford manufactures tripot CV joint components in numerous sizes, typically within the range of 1” to 4” OD.
Does Hartford manufacture complete replacement CV joint kits?
Hartford is best suited for OEM and Tier supplier component programs, not retail replacement kits. The team manufactures precision tripot CV joint components for production applications.
What should I send with a request for quote?
The most helpful RFQ information includes drawings, OD, ID, width, material requirements, hardness requirements, surface finish requirements, application details, production volume, timeline, and any APQP, PPAP, SPC, or certification requirements.
