PolyLube Design Guide Overview
This document serves as a comprehensive guide for PolyLube bearings, detailing standard sizes and specifications. It includes information on the part number system, dimensions, and tolerances.

PolyLube Bearing Part Number System
The part number system is designed to convey details about the bearing's dimensions and liner type. For instance, PFM040048-40 indicates a Fiber Series Lined Bearing with a 40mm inside diameter, 48mm outside diameter, and 40mm length.

Standard Sizes for PolyLube Metric Bearings
The document lists standard sizes for metric bearings, including nominal ID, OD, recommended housing bore, press fit, recommended shaft size, running clearance, and length tolerance. Measurements are in millimeters, with housing bore and shaft diameter tolerances specified as H7/H8 and h7/h8.

Key Specifications
Nominal ID and OD: Basic dimensions crucial for fit and function.
Recommended Housing Bore and Shaft Size: Ensures correct fit within housing and around the shaft.
Running Clearance: Space between the bearing and shaft for smooth operation.
Length Tolerance: Standard tolerance of ±0.250mm, with smaller tolerances available upon request.

Example Bearing Specifications
Examples of specific bearing part numbers, such as PFM015020-010, are provided with dimensions and tolerances in millimeters and inches.

Conclusion
This guide is essential for selecting the appropriate PolyLube bearing, ensuring compatibility and optimal performance through detailed specifications and standardized measurements.