135
Miniature Self-Aligning Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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135 Bearing Product Overview & Core Advantages
The 135 metric series double row ball bearing represents a high-performance precision bearing solution engineered for applications demanding compact design and reliable operation. This bearing is specifically designed to accommodate significant radial loads while offering robust support. Its double row construction provides enhanced rigidity and load-carrying capacity within a minimal cross-section, making it an ideal choice for space-constrained, high-precision assemblies requiring long-term reliability.
135 Bearing Model Code Explained, Specifications & Naming Convention
| Code Element | Technical Meaning |
|---|---|
| 135 | Series designation for a metric, double row deep groove ball bearing with specific bearing dimensions (5mm bore, 19mm OD, 6mm width). |
| Open (Seal Type) | The bearing features an open (unsealed) design, optimized for applications where external sealing is provided or in clean environments, allowing for potential re-lubrication. |
| Lubricated | The bearing is pre-lubricated with grease, ensuring immediate operational readiness and initial long-term performance. |
| CN (Radial Internal Clearance) | Specifies the standard (normal) radial internal clearance group, suitable for most common operating conditions and applications. |
135 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row ball complement and robust construction deliver superior high rigidity, effectively handling substantial radial loads (Dynamic: 565 lbf / Static: 108 lbf). This design is critical for applications where shaft deflection must be minimized.
Optimized for High-Speed Operation: The use of a lightweight, durable Nylon cage reduces centrifugal forces and friction, contributing to the bearing's high limiting speed of 45,000 rpm. This makes it a capable high-speed bearing for demanding rotational applications.
Precision and Durability: Manufactured from Chrome Steel for both rings and balls, this bearing ensures high durability, wear resistance, and consistent performance. The precision bore diameter and tight dimensional tolerances guarantee smooth and accurate running.
Broad Operating Range: With a specified operating temperature range from -30°C to 110°C and pre-lubrication, the bearing is prepared for a wide array of industrial environments.
135 Bearing Typical Application Areas
This 135 double row ball bearing is ideally suited for a variety of compact and precision-driven applications, including:
- Small Electric Motors and Gearboxes
- Precision Instruments and Optical Devices
- Office Automation Equipment (e.g., Printers, Scanners)
- Medical Devices and Laboratory Equipment
- Robotics and Small Actuators
