NTN SAR1-15 Spherical Plain Bearing | 15 × 35 × 16 mm Heavy Load Bearing
Product Name
NTN SAR1-15 Spherical Plain Bearing
Part Number
SAR1-15
Brand
NTN
Product Category
Spherical Plain Bearings
Condition
New, Refurbished, or Used
Availability
In Stock. Ships worldwide.
What is the NTN SAR1-15 Spherical Plain Bearing
SAR1-15 is a spherical plain bearing designed to support radial and axial loads while allowing angular misalignment between connected components.
Spherical plain bearings consist of an inner ring with a convex spherical surface and an outer ring with a matching concave surface. This structure allows the bearing to accommodate misalignment and oscillating motion while maintaining load support.
The NTN SAR1-15 bearing is commonly used in heavy-duty mechanical systems where components experience vibration, shock loads, and articulation during operation.
Because of its spherical geometry, this bearing performs reliably in equipment where alignment between shafts and housings may vary during operation.
Technical Specifications
| Specification | Details |
|---|---|
| Model | SAR1-15 |
| Bearing Type | Spherical Plain Bearing |
| Inner Diameter | 15 mm |
| Outer Diameter | 35 mm |
| Width | 16 mm |
| Material | Hardened steel or alloy steel |
| Load Capability | Radial and axial loads |
| Lubrication | Self-lubricating or grease-compatible |
| Brand | NTN |
Key Functional Features
High Load Capacity
The bearing is designed to handle both radial and axial loads, including dynamic shock loads present in heavy-duty machinery.
Misalignment Compensation
The spherical sliding surface allows angular movement between connected components without causing mechanical binding.
Wear-Resistant Construction
The hardened steel construction improves resistance to wear, fatigue, and mechanical stress.
Oscillating Motion Support
Spherical plain bearings are designed for applications where components move in oscillating or pivoting motion rather than continuous rotation.
Flexible Lubrication Options
Depending on the variant, the bearing can be self-lubricating or compatible with grease lubrication systems.
How Spherical Plain Bearings Work
Spherical plain bearings support loads while allowing angular movement between mechanical components.
During operation:
A shaft or joint applies load to the inner ring.
The spherical surfaces allow movement between the inner and outer rings.
Loads are distributed across the curved bearing surfaces.
The bearing accommodates misalignment while maintaining structural support.
This design allows equipment to operate smoothly even when alignment changes during operation.
Typical Applications
Construction Equipment
Used in pivot joints of loaders, excavators, cranes, and heavy machinery.
Agricultural Machinery
Agricultural equipment uses spherical bearings in articulated joints and suspension systems.
Automotive Systems
Vehicle suspension and steering linkages use spherical bearings to accommodate movement and load.
Industrial Machinery
Industrial machines use these bearings in hydraulic actuators, presses, and moving mechanical assemblies.
Available Condition Options
The NTN SAR1-15 bearing may be available in different conditions depending on inventory and application requirements.
New
Brand new bearing supplied in original or OEM packaging.
Refurbished
Professionally inspected and restored bearing tested for performance.
Used
Previously installed bearing tested to confirm functional condition.
Condition options allow buyers to select the most suitable solution based on budget and operational needs.
Frequently Asked Questions
What loads can the NTN SAR1-15 support
The bearing supports combined radial and axial loads, including heavy mechanical stress and vibration.
What makes spherical plain bearings different from roller bearings
Spherical plain bearings allow angular movement and misalignment, while roller bearings are designed primarily for rotational motion.
Can the bearing operate without lubrication
Some variants are self-lubricating, while others require periodic grease lubrication depending on the design.
Where are spherical plain bearings commonly used
They are widely used in construction machinery, agricultural equipment, automotive suspension systems, and industrial machines.
Industrial Use Benefits
Using spherical plain bearings provides several operational advantages:
improved tolerance to shaft misalignment
reliable performance under shock loads
reduced mechanical stress on connected components
long service life in heavy-duty equipment
These benefits make spherical bearings essential in machinery exposed to vibration and articulation.
