Superfinished raceway roughness
Precision surface controlReliable Bearings.
Precision Motion.
Vohann connects STT’s miniature precision-bearing expertise with projects in robotics, drones, high-speed motors, medical instruments and intelligent equipment.
Precision measurement capability
Mahr length measuring systemMaximum speed
For a 1×3×1 bearingFinished bearings vibration-tested
Quality controlFrom Brand Creation
to Precision Manufacturing at Scale
Since its founding in 2012, STT has continuously expanded its R&D, manufacturing and industrialisation capabilities, building a complete technical and production foundation for miniature precision bearings.
Suzhou Tiejin was established and the STT brand created.
A 10,000 m² manufacturing facility opened.
Manufacturing area expanded to 21,000 m².
A 48,000 m² headquarters base was established.
Listed on the NEEQ and simultaneously launched the Beijing Stock Exchange IPO process.
From Operating Conditions
to Volume Production
Define Operating Conditions
Align installation envelope, speed, loads, temperature, cleanliness and lubrication.
ROMAX Analysis
Define dimensions and simulate loads, modified life and subsurface raceway stress.
Technical Solution
Develop comparable, actionable bearing solutions around the customer’s stated conditions.
Sample Validation
Coordinate samples, test plans and feedback to refine the technical specification.
Volume Introduction
Align product, manufacturing, commercial and delivery workstreams for stable supply.
Manufacturing and Project Support,
Aligned on One Delivery Path
Precision Bearing Manufacturing
STT-BEARING
- Focused on the development and manufacture of miniature precision bearings
- Capabilities spanning standard and special bearing structures
- In-house ring processing, heat treatment, precision grinding and assembly
- Dimensional, geometric, vibration and noise inspection capabilities
- Continuous product and process development for precision-motion applications
Authorized Service Provider
Vohann
- Product consultation centred on the customer’s application
- Definition of dimensions, speed, load and environmental conditions
- Specification confirmation, quotation and sample support
- Test validation and technical coordination
- Volume-production launch, delivery and ongoing service
Three Core Product Families
for Precision Motion
Miniature Precision Bearings
Precision Deep-Groove Ball Bearings
For compact, low-friction and stable rotation. Dimensions, precision, clearance, sealing and lubrication are defined to suit the application.
Combined-Load Applications
Four-Point Contact Ball Bearings
For applications requiring axial location, compact packaging and rotational accuracy; the solution is defined around load and installation conditions.
Precision Transmission
Flex Bearings
For harmonic drives and precision actuators where thin-wall geometry, elastic deformation and consistent motion transmission are critical.
Different Structures
for Installation and Protection
Open Design
For clean, controlled assemblies; speed and lubrication are defined for the operating conditions.
Sealed & Shielded
Retains grease and limits contamination while balancing running resistance and protection.
Flanged Design
Supports axial location in compact spaces and can simplify housing design.
Special Configurations
Defined around installation, location, protection and overall machine requirements.
Every Process Step
Supports Consistent Performance
Material & FormingRing Processing
Structure & HardnessControlled Heat Treatment
Dimensions & ProfilePrecision Raceway Grinding
Cleanliness & ConsistencyCleaning & Assembly
Final VerificationVibration & Noise Inspection
DimensionsCritical-dimension inspection
SurfaceSurface-quality verification
GeometryRoundness and profile inspection
VibrationRunning-condition inspection
NoiseAcoustic-performance verification
AssemblyFinished-product quality control
In-House Equipment,
Engineered for Consistent Manufacturing
Stable automated equipment × skilled peopleDedicated Bearing Equipment
STT designs and manufactures equipment around the requirements of precision-bearing production.
Faster Cycle Time
Integrated automation improves cycle time from 3.2 seconds to no more than 2.1 seconds.
Cage Recognition
AI algorithms inspect cage condition, while machine vision detects surface defects.
Smart Manufacturing Management
A decision and management system continuously optimises the manufacturing process.
Fully Automated Integrated Technology
Connecting critical assembly operations into one complete line
Fewer transfers and reduced contamination support cleaner products, higher efficiency and consistent manufacturing.
Magnetic matchingCage assemblyPre-cleaningFine cleaningGreasingShield fittingNoise inspectionVisual inspection
Precision Bearings
for Critical Motion Applications
Humanoid Robots & Dexterous Hands
Drones & Gimbals
Electric Vehicles
Semiconductor Equipment
Medical Technology & Precision Instruments
High-Speed Motors & Cooling Fans
Smart Appliances & Equipment
Commercial Space & Nanosatellites
Industrial 3D Printing
Laser Measurement Tools
Precision Machine Tools
Office & Printing Equipment
Define the Right Bearing Solution
from Real Operating Conditions
| Installation Space | Bore, outside diameter, width and fit with the shaft and housing |
|---|---|
| Operating Conditions | Speed, load direction, load level and start-stop frequency |
| Precision & Noise | Requirements for running accuracy, vibration, noise and friction |
| Operating Environment | Temperature, cleanliness, contaminants and protection |
| Design Selection | Open, sealed/shielded, flanged and special configurations |
| Lubrication & Life | Defined around duty cycle, maintenance and target service life |
Start with the Information You Have
An existing part number, key dimensions or application conditions are enough to begin a technical discussion.
Submit Project Requirements →Start with the Real Requirement.
Move the Right Solution Forward.
Share an existing part number, key dimensions or application conditions. Our product and commercial team will follow up.
info@vohann.com Tel +8613352921975
Vohann
Vohann Technology (Guangdong) Co., Ltd.
Zhuhai High-Tech Industrial Development Zone, Guangdong, China
Zhuhai High-Tech Industrial Development Zone, Guangdong, China