Hybrid spindle bearings have bearing rings made from steel and, in contrast to standard spindle bearings, rolling elements made from ceramic (silicon nitride Si3N4).
Advantages
Hybrid spindle bearings achieve very high speeds, have lower friction and heat generation, a longer operating life, place less strain on the lubricant and are insensitive to lubricant starvation.
Through the use of hybrid bearings, the operating limits of bearings with grease lubrication have been shifted to significantly higher speed ranges.
Technical Data
Inside Ø (mm):
|
40
|
Outside Ø (mm):
|
68
|
Width (mm):
|
15
|
Tolerance for inside-Ø (mm):
|
0/-0,006
|
Tolerance for outside-Ø (mm):
|
0/-0,007
|
Tolerance for width (mm):
|
0/-0,12
|
Tolerance for shaft da (mm):
|
0,25/-0,25
|
Contact Angle:
|
15°
|
Rows Of Balls:
|
single row
|
Seal:
|
open
|
Ring Material:
|
GCr15, 100Cr6, SUJ2
|
Rolling Element Material:
|
Ceramics
|
Cage Material:
|
Phenolic Resin
|
Tolerance Class:
|
P4S
|
Lubrication:
|
not greased, not oiled,
|
Type of lubrication:
|
dry
|
Product weight:
|
0,1680 kg
|
Features
· it is suitable for high radial and axial loads in one direction
· it has also an axial load carrying capacity on both sides in the X- or O-arrangement in pairs
· accuracy grade: P4S (main dimensions at least according to ISO-tolerance class 4)
· all running tolerances are classified according to ISO-tolerance class 2
· it is designed for a high running accuracy and high speeds with maximum rigidity and operational safety
· seal: open design (without seal)
· Exchange: HCB7008C-TVP-P4S(FAG), 7008CTA/HQ1P4S (CSC), 7008CSN24 (NSK), 7008CD/HCP4A (SKF)
Application: machine tools,