한국소재(주)-OILLESS BEARING-KOB
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HANKOOK Material Co., Ltd.


Tel : +82-32-817-4497


Email : kob@kob21.com

    • Company
    • History
    • Technology Status
    • Company Performance
    • Location
    • OILLESS BEARING
    • CAST PARTS
    • Copper Alloy
    • KOB1
    • KOB5
    • KOB7
    • KOB AB
    • Notice
    • News Items
    • FAQ
    • Q&A
    • E-book
  • Technic article

    HANKOOK Material Co., Ltd. prides itself on its advanced technology through decades of accumulated technology and continuous R & D and investment.

KOB1

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Technical DATA
Technical DATA Introduction

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FEATURE

  • SERVICEABLE WITHOUT THE NEED FOR LUBRICATION.
  • DEMONSTRATES HIGH PERFORMANCE UNDER HIGH-L OAD LOW-SPEED OPERATIONS.
  • DEMONSTRATES SUPERIOR WEAR RESISTANCE IN APPLICATIONS WHERE OIL FILM IS SELDOM PRODUCED SUCH AS RECIPROCATING MOTIONS, OSCILLATION, FREQUENT STARTS AND STOPS, ETC.
  • SUPERIOR CHEMICAL RESISTANCE AND CORROSION RESISTANCE.
  • STANDARD PRODUCTS ARE AVAILABLE IN VARIOUS SIZES.
Service range
Lubrication condition Dry periodic lubrication
Service temperature range °C -40-+300 -40~+150
Allowable max. pressure P N/mm2 90(150)
Allowable max velocity V m/s 0.50 100
Allowable max. PV value N/mm2․ m/s 1.65 3.25

The values in parentheses are static allowable pressures, which are the allowable bearing pressures when accompanied with no sliding or accompanied with sliding at quite low speed not more than 0.0017 m/s [0.1 m/min.]

Mechanical properties
Specific gravity – 7.9
Tensile strength N/mm2 755
Elongation % 12
Compressive strength N/mm2 345
Impact strength J/cm2 19
Hardness HB 210
Modules of longitudinal elasticity N/mm2 105,000
Co-efficient of linear expansion X 10-5 °C-1 2.2
Thermal conductivity W/m°C 87.8

* The values shown above are typical values, not the standard values.

Technical DATA
Technical DATA Introduction

  • KOB1
  • KOB5
  • KOB7
  • KOB AB

Office


Contact us : kob@kob21.com


  • Tel+82-32-817-4497
  • Fax+82-32-816-8566

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HANKOOK MATERIAL Cp., Ltd  Namdong Complex 38B-10L, 626-9, Namchon-Dong, Namdong-Gu, Incheon, Korea TEL : 032-817-4497   FAX : 032-816-8566   E-Mail : hkm@kob21.com
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