Technical Specifications of Bearings

This document provides detailed technical data for various bearing models, including dimensions, load ratings, speeds, and designations. The data is organized primarily by shaft diameter and bearing designation.

1. Bearing Dimensions and Designations

Each bearing is identified by a model code (e.g., SL18 3004, SL19 2305, SL04 5004 PP) and associated with specific shaft diameters ranging from 20 mm up to 140 mm and beyond. Key dimensional parameters include:

• d: Shaft diameter (mm)
• D: Outer diameter (mm)
• B: Width (mm)
• r: Fillet radius (mm)
• s, d1, D1, E: Additional mounting and boundary dimensions (mm)

Mass of each bearing is provided in kilograms.

2. Load Ratings and Speeds

Two types of load ratings are specified:

• Dynamic Load Rating (Cr): Indicates the bearing's capacity to withstand dynamic loads, values range from approximately 0.11 kN to over 10 kN depending on model and size.
• Static Load Rating (Cor): Indicates the bearing's capacity to withstand static loads, values range from about 1.5 kN to over 70 kN.

Limiting speeds are given in revolutions per minute (rpm), with values varying by bearing size and type, typically ranging from 1000 rpm to 22000 rpm or higher.

3. Bearing Types and Designations

The document distinguishes between different bearing types and their applications:

• Semi-locating bearings (e.g., SL18, SL19 series)
• Locating bearings (designations like SL01, SL02)
• Non-locating bearings
• PP series bearings (e.g., SL04 5004 PP) with additional parameters such as C, C1, m, t, x indicating detailed design features.

4. Mounting and Boundary Dimensions

Mounting dimensions are provided to ensure proper installation, including parameters such as bore diameter, outer diameter, width, and specific mounting features. Boundary dimensions help define the physical envelope of the bearing.

5. Load and Speed Limitations

The document specifies maximum permissible speeds and load capacities for each bearing model, critical for ensuring operational safety and longevity. For example, smaller bearings have higher limiting speeds but lower load capacities, while larger bearings support higher loads but have lower maximum speeds.

6. Recommendations and Usage Notes

While explicit procedural recommendations are not detailed, the data implies best practices such as selecting bearings based on shaft diameter, load requirements, and speed limits. The presence of semi-locating and locating bearing types suggests considerations for axial positioning in assemblies.

Summary Table Highlights

• Shaft diameters from 20 mm to 140 mm and above.
• Dynamic load ratings from 0.11 kN to over 10 kN.
• Static load ratings from 1.5 kN to over 70 kN.
• Limiting speeds from 1000 rpm to over 22000 rpm depending on bearing size and type.
• Mass ranges from approximately 0.11 kg to over 10 kg.

This comprehensive data supports selection and application of bearings in mechanical systems requiring precise load and speed handling.