Technical Data

Selecting the right bearing for a specific application requires a review of performance requirements and material operating limitations. Certain design considerations must be met in the device and bearing to address such factors as load, speed, temperature, environment, method of lubrication and fit. Often times sacrifices must be made in one area to satisfy another to achieve optimal life.

Many factors come into play when selecting a bearing or creating a new design in which a ball bearing will be employed.
Most important are speed, load and temperature.

Load

Direction
Radial
Axial
Shock
Combined

Speed

Contstant Variable
Hi or Low
dN > 250,000

 

Temperature

Average
Max. Operating
Ambient

 

Environment

Vacuum
Gas or Air
Contaminants

 

Shaft / Housing

Fits
Geometry
Tolerances
Mounting
 


Bearing design properties that can be manipulated to meet certain performance criteria are:

Other Properties

Load Ratings:

Basic Static
Basic Dynamic
Equivalent Dynamic "P"

Maximum Speed:

Determined by size and design.

 

Fits:

Shaft and Housing Fits
 

Tolerances:

ABEC Class
 

Bearing Life:

Basic Bearing Life
Ceramic Bearning Life

Part Number Properties

Example Part Number: CS6202XXPKWS - C | S | 6202 | XX | PK | WS

Ball Material: - C

C = Ceramic (Si3N4)
S = Stainless Steel (440C)
No symbol = Chrome Steel




 

Ring Material: - S

No symbol = Chrome steel
S = Stainless Steel (440C)
S3 = Stainless steel (SS304)
C = Ceramic (Si3N4)
CR = Ceramic (ZrO2)
N = Nylon
P = PEEK
 

Size: - 6202

Basic size (see bearing size list)






 

Closure: - XX

Gas or Air
Contaminants






 

Retainer material: - PK

PK = PEEK
PS = PPS
VP1 = Vespel SP1
VP3 = Vespel SP3
TR = Torlon
PT = PTFE
NY = Nylon
PH = Phenolic
No symbol = Metal

Lubrication: - WS

Dry film lubrication / Coating
WS = Tungsten Disulfide
MO = Moly Disulfide
Grease
L1 = SRI, General purpose
L2 = Poly Rex EM, Electric Motor grade
L3 = Krytox, High Temperature
L4 = LVP Krytox, Vacuum
L5 = Kluber NB52, High speed