The First Range Of Bearings For Extreme Use Available From Stock

Download (PDF, 869.5KB)

High temperatures:

FT series: 150°C (300°F) peak s up to 500 000 N.Dm
HTseries: 200°C(400°F)peak s up to 150 000 N.Dm
F600/F604 series
s (not pictured)
Low temperatures:
LT series:
s down to -60°C (-75°F)

High speeds:
HV series:
s up to 700 000 N.Dm

Straightforward and immediately available, SNR's TOPLINE range is divided into 4 families of ball bearings and covers the most stringent technical appli­cations. It thus provides:
wider selection,
simplified product management,
faster procurement.

Applications Sealed version Shielded version

Extreme temperature 200° C (390°F) to 350°C (660°F) Not available F604

-60°C -50°C -40°C -30°C -20°C -10°C0°C (-75°F) (-60°F) (-40°F) (-20°F) (-4°F) (15°F) (32°F)
Extreme conditions,

extreme controls …
Thanks to its test center with more than 100 machi­nes, SNR has tested all the bearings of the TOPLI­NE range and all their components. Lubricant breakdown, responsible for 70% of premature bearing failures, is averted due to the selection of greases suited to the particular appli­cation conditions. The test programs on the TOPLINE range have focu­sed on this critical criterion through consideration of:

physical/chemical characteristics: upper and lower operating limits, drop point, extreme pressure properties, etc.
mechanical features: stability at various tempera­tures, in the presence of water, high temperature capabilities, resistance at high speed and/or low torque.
proven performance under actual operating condi­tions. SNR has worked with the largest industrial manufacturers. A guarantee of reliability!

RECOMMENDED FITTING TOLERANCES

Shaft Steel

or cast-iron housing m6 H7 h6 M7

RECOMMENDED FITTING TOLERANCES RECOMMENDED FITTING TOLERANCES

*Note:Bearings of the HT and HT ZZseries are packed withgrease that provides the optimum temperature resistance while minimizing the reduction in speed capabilities.
RECOMMENDED FITTING TOLERANCES

Shaft Steel

or cast-iron housing m6 H7 h6 M7

*Speedindicatedforoperationwithin atemperaturerangeof-20 to+80°C(-4 to+175°F)
RECOMMENDED FITTING TOLERANCES

Aggressive environments require extreme solutions.
These radial contact ball bearings have the following features and benefits:
• Large radial clearance. Clearance is sufficient  to compensate for differential thermal expansion  between the inner and outer rings of the bearing  and/or surrounding parts.
• Heat treatment with stabilization temper. Beyond 230° to 250°F, steel undergoes  a structural change resulting in an increase of its  specific volume. To limit this phenomenon,  F600 bearings are subject to a special  high­temperature temper.
• Pressed steel cage.
• Recessed markings on both rings. Marking  maintains proper identification of  bearings at all times regardless of operating  conditions.

Bearing type selection and instructions for use
F600: Standard Type

Open with a black finish, the F600 benefits from a special surface treatment over the entire bearing.  This surface treatment gives the bearing better resistance to corrosion while acting as a dry lubricant where speed and loads are not as severe.
F604: Greased/Shielded Type

Suited for heavily contaminated environments, this bearing is pre­lubricated with a high­temperature grease and protected by two built­in shields.
F605: Special Type for Limestone

This open bearing is designed for use in limestone kilns or similar applications. It is heat stabilized for temperatures up to 660°F, but comes with no surface treatment. PTFE type lubricant is recommended for filling the empty housing space. The special treatment of the F600 series can be applied to other sizes and types of bearings (e.g. spherical roller bearings). Contact your NTN representative for additional details.

*Load recommended at speed lower than 50rpm
RECOMMENDED FITTING TOLERANCES

U.S. Headquarters:
1600 East Bishop Court Mt. Prospect, IL 60056-7604 Tel: (847) 298-7500 Fax: (847) 699-9744 1-800-323-2358
Regional Sales Offices:
Mount Prospect, IL | Exton, PA | Norcross, GA | Omaha, NE | Shelbyville, KY | Louisville, OH
TN21 USA PRINTED IN USA 04/2011

If you liked this, please tell us:
  • Facebook
  • Twitter
  • email
  • Print
  • Add to favorites
  • Google Bookmarks
  • RSS
This entry was posted in Bearings and tagged , , , , , , , , , . Bookmark the permalink.

Comments:

Your email address will not be published. Required fields are marked *

*

Captcha Captcha Reload

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>