Technical Specifications of Needle Roller and Flat Cage Assemblies

1. Designations and Codes

The document lists current and original designations for various needle roller and flat cage assemblies, indicating model identifiers such as LNS 2015 W, LNS 3020 BF, LNS 5015 BF, etc.

2. Raceway Dimensions

Key parameters for raceway dimensions include:

• B: Width (mm)
• L1: Length (mm)
• DW: Diameter of needle rollers (mm)
• t: Thickness (mm)
• a: Additional dimension (mm)

These dimensions define the size and fit of the needle roller assemblies within their applications.

3. Boundary Dimensions

Boundary dimensions specify the external size constraints of the assemblies, ensuring compatibility with mechanical systems.

4. Load Ratings

The document provides both dynamic (Cr) and static (Cor) basic load ratings in Newtons (N), which are critical for assessing the load capacity and durability of each assembly model. For example:

• LNS 2015 W: Dynamic Load 14,300 N, Static Load 40,000 N
• LNS 3020 BF: Dynamic Load 39,500 N, Static Load 102,000 N
• LNS 7035 BF: Dynamic Load 197,000 N, Static Load 455,000 N
• LNS 12040 BF: Dynamic Load 455,000 N, Static Load 930,000 N

5. Additional Parameters

Other parameters such as Elmin and H (possibly minimum length and height) are listed, along with values that may relate to operational limits or installation requirements.

Summary

This technical data provides essential specifications for selecting appropriate needle roller and flat cage assemblies based on size, load capacity, and design compatibility. The detailed dimensions and load ratings support engineering decisions for mechanical design and maintenance.