Super Thin Section Deep Groove Ball Bearings
Ultra-compact radial supportOnly 2.5 mm axial width with a 3.0 mm radial cross section. The Type C deep-groove design is optimized primarily for radial loads and can also accommodate moderate thrust loads in either direction.
Product family: Super Thin Section Deep Groove Ball Bearings
Standard range: Bore 35-170 mm | OD 41-176 mm | Width 2.5 mm | Radial cross section 3.0 mm
Super Thin Section Deep Groove Ball Bearings Overview
CHG Super Thin Section Deep Groove Ball Bearings use a Type C radial-contact raceway and Conrad assembly. The deep ball grooves provide efficient radial support while permitting moderate axial load in either direction, making the series suitable for compact locating and rotary-support functions.
The cross section remains nearly constant as bore diameter increases, helping designers enlarge hollow shafts or cable passages without a proportional increase in bearing envelope and mass. Type C bearings are often used with another bearing when the system needs distributed support, improved rigidity or controlled shaft location.
Design Features and Benefits
- 2.5 mm ultra-slim width reduces axial installation space and total mechanism weight.
- Large bore-to-section ratio supports hollow-shaft, cable-routing and compact motion-control designs.
- Deep raceway grooves support radial loads and moderate thrust loads in either direction.
- Stainless-steel rings and balls improve corrosion resistance in moisture and selected clean environments.
- Low mass and low rotational inertia support sensitive positioning and intermittent motion.
- Custom clearance, precision, lubricant and hybrid ceramic-ball options are available after application review.
Load Capability and Bearing Arrangement
Type C is designed primarily for radial load. Its deep grooves also permit moderate thrust load in either direction. For higher rigidity, longer support span or more controlled shaft location, two bearings can be arranged according to the application; the actual load distribution must be verified with the shaft and housing system.
Load Capability and Bearing Arrangement Table
| Operating condition | Load capability | Arrangement | Design note |
|---|---|---|---|
| Radial load predominant | High radial efficiency | Single or two-support | Maintain rigid, round seats |
| Combined load | Radial + moderate axial | Single Type C | Verify clearance and axial ratio |
| Bidirectional location | Moderate thrust both ways | Single or paired | Control thermal expansion |
| Higher rigidity | Distributed radial support | Two spaced bearings | Check alignment and load sharing |
Standard Technical Specifications
| Bearing type | Super Thin Deep Groove Ball Bearings |
|---|---|
| Bore range d | 35-170 mm (1.3780-6.6929 in) |
| Outside diameter D | 41-176 mm (1.6142-6.9291 in) |
| Axial width B | 2.5 mm (0.0984 in) |
| Radial cross section H | 3.0 mm (0.1181 in) |
| Maximum fillet radius F | 0.25 mm (0.0098 in) |
| Standard material | stainless steel |
| Configuration | Open bearing; full complement or 1/16 in spacer balls |
| Load capability | Radial load primarily; moderate axial load in either direction |
Applications
Robotic joints, compact rotary axes and instrument drives
Satellite mechanisms, optical payloads and camera systems
Inspection, measuring and precision positioning equipment
Medical instruments and compact diagnostic mechanisms
Semiconductor and clean motion-control modules
Light and medium duty mechanisms with continuous or intermittent rotation after speed verification
Application boundary
This series is intended primarily for precision positioning and light-to-medium duty mechanisms. Continuous high-speed, shock-load, vacuum, extreme-temperature or high-cycle applications require a dedicated engineering review.
Selection and Installation Guidelines
Define radial load, axial load magnitude and direction, moment, duty cycle and target life.
Select a single-bearing or two-support arrangement according to shaft span, rigidity and locating requirements.
Control shaft and housing roundness, flatness and fit; thin rings are sensitive to mounting distortion.
Apply mounting force only to the ring being fitted; never transmit force through the balls.
Specify lubricant, operating temperature, cleanliness, corrosion exposure and relubrication strategy.
Confirm operating clearance after the actual fits, shaft/housing deformation and temperature effects are considered.
Customization and Engineering Support
Dimensional customization and non-standard ring geometry
Precision class and internal clearance selection
Stainless-steel or hybrid ceramic-ball configurations
Special lubricants for low torque, clean, vacuum or temperature requirements
Application calculations, drawings, inspection reports and material certificates
CHG Bearing combines manufacturing in Luoyang with application engineering and customized bearing development. Before quotation, our engineers can review the installation envelope, load spectrum, speed, accuracy, environment and expected service life.
Information Required for Quotation
Bearing model or required d × D × B
Radial/axial load, moment and load direction
Speed, duty cycle and expected life
Accuracy, runout and operating clearance requirement
Temperature, lubricant, cleanliness and corrosion conditions
Quantity, destination country and required delivery date
FAQs about Super Thin Section Deep Groove Ball Bearings
Models and Principal Parameters
Click on any part number to view detailed CAD drawings and download PDF specifications.
