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Bearee™ Resin Plain Bearing Unit (FL3700)

ベアリーFL3700樹脂滑り軸受ユニット / NTN Corporation (Official website) / Listed on page 22 of the document

A unit incorporating Bearee FL3700 resin plain bearings. Can be used not only in air but also in water and chemical solutions, and operates without lubrication and maintenance-free.

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Bearee™ Resin Plain Bearing Unit (FL3700) on page 22 of NTN Corporation "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™"
Source: NTN Corporation「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™」page 22
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Specifications

Limiting surface pressure 3 MPa
Limiting sliding speed 150 m/min
Continuous operating temperature 260 ℃

How to choose Plain Bearings

Points to check when selecting, with the values for this product (Bearee™ Resin Plain Bearing Unit (FL3700)).

  1. 1. Select dimensions that fit the shaft diameter and housing bore

    Match the inside diameter d to the shaft diameter and the outside diameter D to the housing bore diameter. Listed products have inside diameters of 3 to 70 mm and outside diameters of 5 to 80 mm. When press-fitting, allow for the bearing shrinking during installation, which reduces the inside diameter. Also check the shaft and housing tolerances recommended by the manufacturer.

  2. 2. Verify bearing pressure and speed using the PV value

    Confirm that the PV value, which is the product of bearing pressure (load divided by projected area) and sliding speed, does not exceed the limiting PV value. The limiting PV value of listed products is 400 MPa·m/min. The individual limits for bearing pressure alone (3 to 10 MPa) and for sliding speed alone (150 m/min) must also be satisfied.

  3. 3. Determine the length according to the load

    Increasing the length L increases the projected area and lowers the bearing pressure. However, if the length is too great, shaft deflection tends to concentrate the load at the ends, causing edge loading. Listed products have lengths of 3 to 60 mm, so select a length that keeps the bearing pressure within the limit.

  4. 4. Select a material suited to the operating environment

    For underwater or chemical-liquid use, choose a material with chemical resistance and wear resistance in liquid. Where static electricity is a concern, choose a conductive material. Wear of the mating material also varies with the material and hardness of the mating shaft. If antistatic performance is required, also check the volume resistivity.

  5. 5. Check temperature and operating clearance

    Resin bearings expand as temperature rises, which reduces clearance. In addition to the maximum operating temperature (300 to 350 °C) and continuous operating temperature (260 °C), maintain the recommended minimum operating clearance (0.095 to 0.195 mm).

  6. 6. Match the lubrication method to the maintenance conditions

    Whether a bearing can run without lubrication, or requires oil-impregnated or external lubrication, affects maintenance effort and the risk of contamination in the surroundings. Greaseless types are suitable for food machinery and clean environments. For use in vacuum, also check the usable vacuum level and low outgassing performance.

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

About Plain Bearings and all products

Description

Housing materials include SCS13, FC200, and others, and shapes such as pillow block, square flange, and round flange can be selected. Limiting surface pressure is 3 MPa, limiting sliding speed is 150 m/min, and continuous operating temperature is 260 ℃.

Features

  • Usable in water and chemical solutions
  • Greaseless operation possible
  • Heat resistance up to 260 ℃

Applications

  • Rotating body support in automobiles
  • Rotating body support in food machinery
  • Plain bearings for aerospace use

FAQ

Q. Can the Bearee™ Resin Plain Bearing Unit (FL3700) be used in water or chemical solutions?
A. Yes. It can be used in water and chemical solutions. It can be used not only in air but also in water and chemical solutions, and operates without lubrication and maintenance-free.
Q. What are the limiting surface pressure, limiting sliding speed, and continuous operating temperature of the Bearee™ Resin Plain Bearing Unit (FL3700)?
A. The limiting surface pressure is 3 MPa, the limiting sliding speed is 150 m/min, and the continuous operating temperature is 260 ℃.
Q. What housing materials and shape options are available for the Bearee™ Resin Plain Bearing Unit (FL3700)?
A. Housing materials include SCS13, FC200, and others, and shapes such as pillow block, square flange, and round flange can be selected.
Q. Can the Bearee™ Resin Plain Bearing Unit (FL3700) be used without grease?
A. Yes. It is greaseless-capable and operates without lubrication and maintenance-free.
Q. What applications is the Bearee™ Resin Plain Bearing Unit (FL3700) used for?
A. It is used for rotating body support in automobiles, rotating body support in food machinery, plain bearings for aerospace use, and similar applications.

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

Source documents

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