Bearie™ BRF Series Flanged Sleeve Bearing

Specifications

How to choose Bushings

Points to check when selecting, with the values for this product (Bearie™ BRF Series Flanged Sleeve Bearing).

1. 1. Match Shaft and Housing Bore Dimensions

   This product: Inner diameter d 3～25 mm

   The inner diameter d corresponds to the shaft diameter in use, and the outer diameter D corresponds to the housing bore diameter. Listed products have inner diameters of 3 to 70 mm. Many are press-fitted, so confirm the manufacturer's recommended shaft and housing bore tolerances, taking into account the reduction in inner diameter after press-fitting and the clearance with the shaft.

2. 2. Verify Margin Using the PV Value

   When the product of surface pressure P (MPa) and sliding speed V (m/min) exceeds the limiting PV value, heat generation causes wear and seizure to increase rapidly. In the listed example, the limiting PV value is 98 MPa·m/min. Calculate the PV value from the actual load and rotational speed, and select a product with adequate margin.

3. 3. Check Maximum Surface Pressure and Sliding Speed Separately

   Even if the PV value is within range, the product cannot be used if either surface pressure or speed exceeds its limit. In the listed examples, the limiting surface pressure is 49 MPa and the limiting sliding speed is 100 m/min. For high-load oscillating applications, grades for high surface pressure, such as multi-layer constructions with a steel backing, are suitable.

4. 4. Select Material and Construction for the Application

   Injection-molded resin products are lightweight and suitable for maintenance-free use, while multi-layer and rolled bushings with a resin layer over a steel backing are thin-walled and withstand high surface pressure. Also check chemical resistance, dimensional change due to water absorption, and compatibility with the mating shaft material and hardness for each material.

5. 5. Confirm the Maximum Operating Temperature

   This product: Maximum Operating Temperature 230 ℃

   Resin-based materials lose strength and wear resistance at high temperatures. Listed products have continuous maximum operating temperatures of 230 to 260 °C. Consider that frictional heat adds to the ambient temperature, and check how clearance changes due to thermal expansion as temperature rises.

6. 6. Choose a Flanged Type for Axial Loads

   Where loads act along the axis or axial positioning is required, a flanged type can receive the load on its flange face. Confirm that the flange outer diameter and thickness do not interfere with the seating surface dimensions on the housing side or with surrounding components.

This guide was written by AI based on the listed products' documents and specification items.

About Bushings and all products

Description

Injection-molded product made from Bearie AS5005. The flange supports both radial and axial loads. Standard bore diameter is 3 to 25 mm.

FAQ

Q. What is the bore diameter range of the Bearie™ BRF Series Flanged Sleeve Bearing, and what types of loads can it support?

A. The standard bore diameter is 3 to 25 mm. The flange allows it to support both radial and axial loads.

Q. What is the maximum operating temperature and material of the Bearie™ BRF Series Flanged Sleeve Bearing?

A. The maximum operating temperature is 230 ℃. The product is injection-molded from Bearie AS5005.

Q. What manufacturing method is used for the Bearie™ BRF Series Flanged Sleeve Bearing, and what are its applications?

A. It is an injection-molded product used as a plain bearing.

Written by AI based on the content of the source documents.

Source documents

• Catalog エンジニアリング・プラスチック製しゅう動部品 ベアリー™ 26 pages
  Found on: https://www.ntn.co.jp/japan/products/catalog/ja/2203/index.html