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|Bore Size::||90 Mm||Outside Diameter::||115 Mm|
|Material::||GCr15/Chrome Steel||Speed::||High Speed|
High Speed FAG Ball Bearing / Angular Contact Ball Bearing GCr15
A . Angular Contact Ball Bearing Parameters
Structure- Angular Contact
Model number- 71918C
Inner ring(mm)- 90
Outer ring(mm)- 115
Materials- Chrome steel/GCR15
Precision grade- P5/P4/P2
Lubrication type- Grease lubrication
Contact Angle- C=15°;AC=25°
Material(Ball)- Steel ball(SUJ2); SN24:Ceramic ball(Si3N4)
Number of Row- Single rows
Combination of mark- "SU:Universal combination (single row)
DU:Universal combination (double rows)
DB: Back-to-back combination
DF: Face-to-face combination
DT: Parallel combination
DBD.DFD.DTD: Three rows
DBB.DFF.DBT.DFT.DTT: Four rows"
Preloaded mark- "EL: Micro preloaded
L : Light preload
M : Medium preloade
H : Heavy preloaded"
B . 71918C Angular Contact Ball Bearing Specification Sheet
|Limiting speed||Limiting speed|
|d||D||B||Basic load rating||Lubrication||Basic load rating||Lubrication|
|Cr Cor||Grease Oil||Cr Cor||Grease Oil|
|71918C||90||115||18||47.2 64.8||8000 15000||20.4 31.6||7500 13000||PF||-|
C . 719 series Angular Contact Ball Bearing Details
Product FeaturesPrecision Angular Contact Ball BearingsDue to their internal design, angular contact ball bearings can withstand high radial-axial loads and reach high speeds. They are asymmetrical for manufacturing reasons and can withstand unidirectional axial loads only. Angular
bearings are usually mounted in a group of two or more opposed preloaded units with rigid or elastic spacers. Typically, the inner and outer raceways
balls are made of chrome steel. Where operating conditions are severe, bearings may have ceramic balls creating a hybrid bearing.
Series IntroductionISO 19 Series - second highest speed, with the second lowest load bearings-719 Series Angular Contact Bearings
Series Model No."71900C 71901C 71902C 71903C 71904C 71905C 71906C 71907C 71908C 71909C 71910C 71911C 71912C 71913C 71914C 71915C
71916C 71917C 71918C 71919C 71920C 71921C 71922C 71924C 71926C 71928C 71930C 71932C 71934C 71936C 71938C 71940C 71944C 71948C
71952C 71956C 71960C 71964C 71968C 71972C 71976C 71980C 71984C 71988C 71992C
Applications"Angular contact bearing applications :
electric motors,Spindle,automotive applications, home appliances, industrial equipment."
D . 719 series Angular Contact Ball Bearing Installation & Cautions
To obtain the best possible performance of the bearings, installation must be performed very carefully in ultra clean conditions.
Errors during fitting of ball bearings can jeopardize the best design and create high repair and maintenance costs. We would like to give some advise for proper mounting of bearings:
The workshop should be dust free with low humidity, no compressed air or machining is allowed.
Only unpack bearings immediately before installation. If grease is required it should be applied at this time, with a syringe. Do not use fingers or a spatula.
The use of a syringe is recommended to inject the grease right between the balls into the ball/raceway area. Nearly all standard greases are compatible to
our rust preventive, so in most cases it is not necessary to wash the bearings prior to greasing. The only exceptions are special greases, based on silicone or fluorocarbon oils or PTFE-thickeners. They require a clean oil free surface to obtain good adhesion of the grease.
Never clean the bearings in ultra sonic devices! Allow the rust preventive to dissolve in a gasoline bath by slowly moving the bearings."
E . Angular Contact Ball Bearing Series
ISO 18 Series - highest speed, lowest load bearings
ISO 19 Series - second highest speed, with the second lowest load bearings
ISO 10 Series - highest load, second lowest speed bearings
ISO 02 Series - highest load, lowest speed bearings