1. Deep Groove Ball Bearings

This section details specifications for deep groove ball bearings, covering key dimensions such as bore diameter, outer diameter, width, and minimum corner radius. Load ratings include dynamic (Cr) and static (Cor) capacities in kilonewtons, indicating operational and stationary load endurance. Speed limits are specified for grease and oil lubrication, with maximum rotational speeds in rpm. Bearing weights are provided for design considerations. Identification codes include current and original bearing numbers to aid cross-referencing and replacement. The data spans a broad size range, highlighting how corner radius and lubrication type affect speed and load capacities.

2. Double-Row Angular Contact Ball Bearings (Types 0000D/W33 and 0000DC/W33)

This section presents detailed parameters for double-row angular contact ball bearings, including bore diameter, outer diameter, width, minimum corner radius, and additional installation dimensions like maximum bore diameter and corner radius. Load ratings (dynamic and static) reflect the bearings' ability to handle combined radial and axial loads. Speed limits for grease and oil lubrication are specified. Weights and identification codes (current and original) are included. Some bearings feature lubrication grooves (W33) and variations in corner radius and width to suit installation needs. The data emphasizes matching bearing selection to application-specific load, speed, and installation requirements.

3. Four-Point Contact Ball Bearings

Specifications include dimensions, load ratings, speed limits, weights, and model codes. Bearings are identified by codes such as QJF1022 and 116124H, with both current and original numbers. Key parameters are bore diameter, outer diameter, width, minimum corner radii, dynamic and static load ratings, and speed limits. Weight data supports handling and design.

4. Four-Row Cylindrical Roller Bearings

This section provides comprehensive data on four-row cylindrical roller bearings, including bore diameter, outer diameter, width, flange width, minimum corner radii, dynamic and static load ratings, and weights. Installation-related dimensions such as minimum diameters and flange thickness are specified. Bearings are identified by model numbers and cross-referenced with SKF and FAG catalogs. Bore sizes range from 150 mm to 660 mm, with dynamic load ratings from 600 kN to over 6700 kN and static ratings up to 21,000 kN. Weights vary from under 10 kg to over 500 kg. Standardized corner radii and flange widths ensure compatibility with shafts and housings.

5. Cylindrical Roller Bearings for Petroleum Machinery and Double-Row Long Cylindrical Roller Bearings

Includes single-row cylindrical roller bearings designed for petroleum machinery with bore diameters from 60 mm to 220 mm, dynamic load ratings from 180 kN to 1880 kN, and static ratings up to 3010 kN. Limiting speeds vary by lubrication type. Double-row long cylindrical roller bearings cover bore diameters from 100 mm to 240 mm, with dynamic load ratings from 237 kN to 1120 kN and static ratings up to 1400 kN. Weights and speed limits for grease and oil lubrication are provided.

6. Spherical Roller Bearings

Data includes bore diameters from 120 mm to 230 mm, dynamic load ratings from 280 kN to 1120 kN, static ratings from 460 kN to 1400 kN, and weights from 2.8 kg to over 23.8 kg. Bearings have cylindrical and tapered bore options, with detailed installation dimensions and calculation parameters (e, y1, y2, y0) for load factors.

7. Double-Row Tapered Roller Bearings (Metric and Imperial Units)

Detailed specifications include bore diameter, outer diameter, width, corner radii, dynamic and static load ratings, installation dimensions (da, Da, ramax, r1amax), calculation coefficients (e, Y1, Y2, Y0), and weights. Bearings are identified by current and original codes. Bore diameters range from 550 mm to over 1200 mm, with dynamic load ratings from 5500 kN to over 26,000 kN and static ratings up to 93,000 kN. Weights vary from 400 kg to over 4000 kg. Both metric and imperial data sets are provided to accommodate different engineering standards.

8. Thrust Bearings (Ball, Angular Contact Ball, Cylindrical Roller, Tapered Roller)

Specifications cover single-row and double-row thrust bearings with dimensions, load ratings, weights, and identification codes. Bore diameters range widely (e.g., 35 mm to over 1000 mm), with dynamic load ratings from 135 kN to over 94,000 kN and static ratings accordingly. Installation dimensions and mounting details are included. Bearings are categorized by type and application, including specialized rolling mill pressure mechanism bearings.

9. Combination Roller Bearings and Split Bearings

Combination roller bearings with adjustable axial eccentricity and fixed axial types are detailed, including load ratings, dimensions, limiting speeds, and weights. Split cylindrical and spherical roller bearings designed for water cooling are specified with bore diameters, load ratings, and mounting dimensions. Large diameter split cylindrical roller bearings and outer ring flange fixed type bearings are also covered, with detailed dimensional and load data.

10. Bearing Units and Components

Includes split spherical and cylindrical roller bearing units with water cooling, large diameter split bearings, backing bearings, support roller bearings, and conveyor chain cylindrical roller bearings. Parameters include dimensions, load ratings, weights, sealing and retaining ring types, and model codes. These specialized bearings address heavy-duty and application-specific requirements.

Critical Information and Best Practices

• Selection: Bearings must be chosen based on precise dimensional compatibility, dynamic and static load ratings, and speed limits appropriate to the application.
• Lubrication: Speed limits vary with lubrication type; adherence to lubrication specifications is essential for bearing longevity.
• Installation: Accurate adherence to bore, outer diameter, width, corner radii, and installation dimensions ensures proper fit and function, preventing premature failure.
• Identification: Use current bearing codes for ordering and maintenance, cross-referencing original codes as needed.
• Load and Speed Limits: Do not exceed specified dynamic/static load ratings or maximum speeds to avoid damage.
• Calculation Coefficients: Parameters such as e, Y1, Y2, Y0 are critical for load and life calculations and should be applied in design.
• Weight Considerations: Bearing mass impacts handling, installation, and mechanical design.
• Specialized Bearings: Water-cooled and split bearing designs facilitate maintenance and high-load applications.

Summary

This comprehensive technical document serves as an essential reference for engineers, designers, and maintenance personnel involved in the selection, specification, installation, and maintenance of a wide range of bearing types, including deep groove ball bearings, angular contact ball bearings, cylindrical and spherical roller bearings, tapered roller bearings, thrust bearings, and specialized bearing units. It provides detailed dimensional data, load ratings, speed limits, weights, identification codes, and installation parameters to ensure optimal bearing performance and reliability in diverse industrial and heavy-duty applications.