Overview

This document provides detailed technical specifications for a range of agricultural bearings, focusing on their dimensions, load ratings, and mass. These bearings are primarily used in agricultural machinery applications.

1. Bearing Specifications

The bearings are identified by model numbers such as GW208PPB, GW209PPB, W208PPB1, etc. Each bearing is characterized by the following parameters:

• Basic Load Ratings (N): The dynamic load capacity, typically ranging from approximately 26,200 N to 39,100 N.
• Mass (Kg): The approximate weight of each bearing, varying between 0.64 Kg and 1.86 Kg.
• Boundary Dimensions (inches): Including diameter (d), outer diameter (D), and widths (Bi, Be).

Key Dimensions

• d (Bore Diameter): Ranges from 1 1/8 inch to 1 1/2 inch, with some decimal values provided (e.g., 1.188, 1.7811).
• D (Outer Diameter): Approximately between 3.1496 inches and 4.125 inches.
• Bi and Be (Widths): Varying between 0.708 inches and 1.75 inches.

2. Load Ratings and Mass

The basic dynamic load ratings (Cr) indicate the maximum load the bearing can sustain. These values range from 26,200 N to 39,100 N, with heavier bearings generally having higher load capacities. Mass values correlate with size and load rating, with heavier bearings designed for higher loads.

3. Applications

The bearings listed are widely used in agricultural machinery, indicating their suitability for demanding environments requiring durability and reliable load handling.

4. Observations and Recommendations

• The document lists multiple variants of similar bearing models with slight differences in dimensions and load ratings, allowing selection based on specific application requirements.
• Mass and load ratings should be carefully matched to the machinery's operational demands to ensure optimal performance and longevity.
• Boundary dimensions are critical for fitting and should be verified against machine specifications.

5. Summary Table Insights

The tabulated data provides a comprehensive comparison of bearing models, highlighting the trade-offs between size, load capacity, and weight. For example:

• GW211PPB models have the highest load rating (~39,100 N) and mass up to 1.86 Kg, suitable for heavy-duty applications.
• GW208PPB and W208PPB variants have lower load ratings (~26,200 N) and lighter mass (~0.67 to 0.93 Kg), suitable for lighter agricultural machinery.

This structured data supports informed decision-making for selecting appropriate bearings in agricultural equipment design and maintenance.