305S-HYB#1
High-Performance Custom Hybrid Ceramic Bearings (#1 Series)
Image may differ from product. See technical specification for details.
Part No.
Part No.
305S-HYB#1
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.24 kg
Tolerance class
ABEC 1 | ISO P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
25 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
62 mm
Outside diameter tolerance
-0.013mm to 0
Width
17 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
5148 lbf
Radial static load rating
3507 lbf
Limiting speed
13 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
305S-HYB#1 Bearing Product Overview & Core Advantages
The 305S-HYB#1 is a precision single row deep groove ball bearing engineered for demanding applications requiring high-speed operation and exceptional reliability. This bearing features a unique hybrid ceramic design with silicon nitride balls, providing superior performance over standard all-steel bearings. Its primary advantages include significantly reduced friction, the ability to operate at higher limiting speeds, and extended service life in challenging environments. The open design and ABEC 1 precision make it an excellent choice for applications where low torque and high rotational accuracy are critical.
305S-HYB#1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 305S | Standard bearing size designation (25mm bore, 62mm OD, 17mm width). |
| HYB | Indicates a Hybrid bearing construction with ceramic (silicon nitride) balls and steel rings. |
| #1 | Specific internal design variant or generation. |
| (Implied) | Open seal type, allowing for custom lubrication schemes. |
305S-HYB#1 Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The use of silicon nitride ceramic balls significantly reduces rotational friction and heat generation compared to steel balls. This material is also electrically insulating, lighter, and harder, leading to enhanced high-speed capability and longer life.
- High-Speed Performance: The combination of ceramic balls and a chrome steel cage enables a very high limiting speed of 13,000 rpm. The reduced centrifugal forces and excellent thermal stability of ceramic are key contributors.
- Radial Load Capacity: Designed to handle significant radial loads with a dynamic load rating of 5148 lbf and a static load rating of 3507 lbf, ensuring robust performance.
- Precision & Rigidity: Manufactured to ABEC 1 (ISO P0) tolerance class with a CN radial internal clearance, providing consistent running accuracy and smooth operation essential for precision machinery.
- Material & Compliance: Constructed from high-grade chrome steel rings and cage, ensuring durability. The bearing is compliant with ROHS and REACH environmental standards.
305S-HYB#1 Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications, including:
- High-Speed Spindles in CNC machining centers and routers
- Electric Motors and Servo Drives requiring low torque and high efficiency
- Aerospace & Defense instrumentation and control systems
- Medical Equipment such as high-speed dental handpieces and centrifuges
- Robotics and precision automation equipment
