INA NATV35-PP-A track rollers 35x72x29mm
The INA NATV35-PP-A is a high-performance support needle roller bearing (also known as a track roller) manufactured by INA, a leading brand of the Schaeffler Group and a global expert in rolling bearing technology. Engineered for applications requiring reliable guidance and high load capacity in limited installation space, this bearing combines robust construction with advanced sealing technology to deliver exceptional performance and extended service life in demanding industrial environments.
The INA NATV35-PP-A is a high-performance support needle roller bearing (also known as a track roller) manufactured by INA, a leading brand of the Schaeffler Group and a global expert in rolling bearing technology. Engineered for applications requiring reliable guidance and high load capacity in limited installation space, this bearing combines robust construction with advanced sealing technology to deliver exceptional performance and extended service life in demanding industrial environments. It features a crowned outer ring for misalignment compensation, axial guidance to prevent ring rotation, and double lip seals for effective contamination protection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Bearing Type | Support Needle Roller with Axial Guidance and Double Lip Seals | - |
| Roller Diameter | 35 | mm |
| Outer Diameter (D) | 72 | mm |
| Width (B) | 29 | mm |
| Dynamic Load Rating (Cₐ) | 33,000 | N |
| Static Load Rating (C₀ₐ) | 73,000 | N |
| Seal Type | Double Lip Seals (designated by suffix "PP") | - |
| Temperature Range | -20 to +100 | °C (continuous operation) |
| Outer Ring Profile | Crowned | - |
| Lubrication | Pre-lubricated with grease, relubrication possible | - |
| Weight | 0.32 | kg (approximate) |
Design Features & Benefits
- Axial Guidance SystemThe bearing incorporates an integrated axial guidance mechanism that prevents the outer ring from rotating relative to the inner assembly. This feature ensures precise alignment, reduces friction, and eliminates wear caused by ring slippage, making it ideal for applications with frequent start-stop cycles or oscillating movements.
- Double Lip Seals (PP Suffix)The "PP" suffix indicates double lip seals that provide superior protection against contamination from dust, dirt, moisture, and other harmful particles. The seals maintain lubrication retention, reducing maintenance frequency and extending the bearing's service life even in harsh operating conditions.
- Crowned Outer RingThe crowned outer ring design allows for compensation of minor misalignments between the bearing and the track, ensuring even load distribution across the rolling elements. This reduces stress concentrations and extends bearing life, while also improving smoothness of operation.
- High Load-Carrying CapacityThe needle roller design provides a large number of rolling elements in a compact space, delivering significantly higher load capacity than traditional ball bearings of similar dimensions. The bearing can withstand heavy radial loads and moderate axial loads, making it suitable for high-duty applications.
- Relubrication CapabilityDespite being pre-lubricated at the factory, the bearing is designed for relubrication to maintain optimal performance throughout its service life. This feature allows for adaptation to varying operating conditions and extends maintenance intervals.
Suffix Explanation
- NATV: Core series code for support needle rollers with axial guidance, designed for heavy radial loads and moderate misalignment compensation.
- 35: Size code corresponding to a roller diameter of 35 mm, complying with international dimensional standards for the NATV series.
- PP: Designates double lip seals for enhanced contamination protection and lubrication retention.
- A: Indicates a specific design variant with adjusted internal clearance or preload to meet application-specific requirements.
Typical Applications
The INA NATV35-PP-A is widely used in various industrial sectors, including:
- Material handling equipment (conveyor systems, roller tables, and lifting mechanisms)
- Machine tools (CNC machining centers, lathes, and milling machines)
- Printing and paper processing machinery
- Packaging equipment
- Textile machinery
- Agricultural machinery
- Construction equipment components
Installation & Maintenance Notes
For optimal performance and extended service life, follow these guidelines:
- Ensure proper alignment between the bearing and the track to maximize the effectiveness of the crowned outer ring's misalignment compensation capability.
- Use appropriate mounting tools to avoid damage to the seals or rolling elements during installation.
- Maintain the recommended lubrication schedule, considering operating temperature, speed, and load conditions.
- Regularly inspect the seals for signs of wear or damage, and replace them promptly if necessary to prevent contamination ingress.
- Avoid excessive axial loads beyond the bearing's specified capacity, as this may cause premature wear or failure.
The INA NATV35-PP-A embodies INA's commitment to engineering excellence, combining compact design, high load capacity, and advanced sealing technology to deliver reliable performance in the most demanding industrial applications.
