EXSEV-PN 300℃ Heat-Resistant Bearing
SE系（SE604ZZSTM5 PN 等） / JTEKT Corporation (Official website)
Heat-resistant radial ball bearing usable up to 300℃ in vacuum, using solid lubricants such as molybdenum disulfide and a PEEK resin cage.
Last verified: (date the content was verified against the source document)
Specifications
| Maximum Operating Temperature | 300 ℃ |
|---|---|
| Inner diameter d | 4～40 mm |
| Outer diameter D | 12～80 mm |
How to choose Plain Bearings
Points to check when selecting, with the values for this product (EXSEV-PN 300℃ Heat-Resistant Bearing).
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1. Select dimensions that fit the shaft diameter and housing bore
This product: Inner diameter d 4～40 mmMatch 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.
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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.
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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.
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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.
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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).
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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.
Description
Lubricated by the solid lubricant contained in the cage, offering excellent lubrication life in the range from room temperature to 300℃. Used in paper carton manufacturing equipment, liquid crystal cleaning equipment, and similar applications.
Features
- Usable up to 300℃ in vacuum
- Long life from room temperature to 300℃
- PEEK resin cage
Applications
- Paper carton manufacturing equipment
- Liquid crystal cleaning equipment
FAQ
- Q. What temperatures and environments can the EXSEV-PN 300℃ Heat-Resistant Bearing (SE series, SE604ZZSTM5 PN, etc.) be used in?
- A. It can be used up to 300℃ in vacuum. It is said to have long life in the range from room temperature to 300℃.
- Q. What are the inner diameter and outer diameter ranges of the EXSEV-PN 300℃ Heat-Resistant Bearing?
- A. The inner diameter d is 4 to 40 mm, and the outer diameter D is 12 to 80 mm.
- Q. What lubrication method does the EXSEV-PN 300℃ Heat-Resistant Bearing use, and what material is the cage made of?
- A. It is lubricated by the solid lubricant contained in the cage. Molybdenum disulfide and others are used as the solid lubricant, and the cage is made of PEEK resin.
- Q. What kinds of equipment is the EXSEV-PN 300℃ Heat-Resistant Bearing used in?
- A. It is used in paper carton manufacturing equipment, liquid crystal cleaning equipment, and similar applications.
Written by AI based on the content of the source documents.
Source documents
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