spacerHomeSearchRFQSuppliersSite mapContactspacer
spacer spacer spacer spacer
Kaydon Bearings spacer spacer

800.514.3066

customer service

spacer
spacer
spacer
Kaydon Bearings Thinfinite Solutions

 
Login to access drawings
and engineering software
 
New user? Register

spacer Kaydon Bearings - Reali-Slim open & sealed bearings
Kaydon Bearings - Endurakote bearings
Kaydon Bearings - Reali-Slim stainless steel bearings
Kaydon Bearings - part number codes

Kaydon Reali-Slim® open bearings and sealed bearings, stainless steel bearings, and Endurakote® bearings are marked for complete identification with an (8) or (9) digit part number. Positions 1–8 identify materials, size, type, and precision. Position 9 (optional) identifies non-standard internal fit.
 

spacer spacer
Position 1 2 3 4 5 6 7 8 9 10–13
Nomenclature Material Series Size Type Separator Precision Internal fit DFAR compliance
Example K G 1 2 0 X P 0 L -USA
spacer spacer
Position 1—Material
  Races/balls Seals, shields
A AISI 52100 Steel One seal—PTFE
B AISI 52100 Steel Two seals—PTFE
D AISI 52100 Steel One shield
E AISI 52100 Steel Two shields
F AISI 52100 Steel One seal—Nitrile rubber
Lami-seal®
G AISI 52100 Steel Two seals—Nitrile rubber
Lami-seal®
H AISI 52100 Steel One seal—Nitrile rubber
J AISI 52100 Steel Two seals—Nitrile rubber
K AISI 52100 Steel No seals or shields
L AISI 52100 Steel Two seals & Endurakote® plating
M M-50 Steel No seals or shields
N AISI 52100 Steel No seals & Endurakote® plating
P AISI 17-4PH Steel Ceramic balls
Q AISI 52100 Steel No shields or seals
S AISI 440C Stainless Steel No seals or shields
T AISI 440C Stainless Steel One seal—PTFE
U AISI 440C Stainless Steel Two seals—PTFE
V AISI 440C Stainless Steel Two shields
W AISI 440C Stainless Steel Two seals—Nitrile rubber
X AISI 52100 Steel Ceramic balls
Y AISI 440C Stainless Steel Ceramic balls
Z Other  

 

Position 2—Series cross section (inches)
    Radial thickness   Width
Standard cross sections A *.187 x .187
  or .250 x .250
B .312 x .312
C .375 x .375
D .500 x .500
E .625 x .625
F .750 x .750
G 1.000 x 1.000
Extended width H *.187 x .250
  or .250 x .312
I .312 x .375
J .375 x .437
K .500 x .578
L .625 x .727
M .750 x .875
N 1.000 x 1.187
Extra-extended width S *.187 x .312
  or .250 x .375
T .312 x .437
U .375 x .500
V .500 x .656
W .625 x .828
X .750 x 1.000
Y 1.000 x 1.375
* Smaller section applies when position 3 is alphabetic—see following explanations of positions 3, 4, and 5.

 

Positions 3, 4, & 5—Size (bearing bore)
Numeric characters
Nominal bearing bore in inches multiplied by ten

Alphabetic characters
"A" in position 3 in combination with "A" in position 2
denotes .187 x .187 series
"A" in position 3 in combination with "H" in position 2
denotes .187 x .250 series
"A" in position 3 in combination with "S" in position 2
denotes .187 x .312 series

Examples
040 = 4.0" bore
120 = 12.0" bore
400 = 40.0" bore
"10" following "AA" in positions 2 & 3 =
.187 x .187 series with 1.0" bore
"15" following "HA" in positions 2 & 3 =
.187 x .250 series with 1.5" bore

 

Position 6—Bearing type
A Angular contact single bearing (not ground for universal duplexing)
B Angular contact pair—duplexed back to back
C Radial contact
F Angular contact pair—duplexed face to face
T Angular contact pair—duplexed tandem
U Angular contact single bearing—ground for universal duplexing
X Four-point contact
Z Other

 

Position 7—Separator
C Non-metallic composite, segmental, "snap-over" type
D Phenolic laminate, one-piece ring "snap-over" type
E Brass, segmental "snap-over" type
F Full complement bearing—no separator
G Nylon one-piece ring, circular pocket
H Phenolic laminate, one-piece ring with circular pockets
J Nylon strip separator, circular pockets
K Phenolic laminate, riveted two-piece ring
L Nylon, one-piece ring "snap-over" type
M Formed wire, strip or segmental, "snap-over" type, ball in every pocket
N Nylon, "snap-over" type
P Standard formed ring "snap-over" type (material—brass or non-metallic composite)
Q PEEK, one-piece ring, circular pocket
R Standard formed ring, circular pocket (material—brass or non-metallic composite)
S Helical coil springs
T Stainless steel, formed ring "snap-over" type
U Stainless steel, formed ring circular pockets
V Brass, formed ring, "snap-over" type
W Formed wire, strip or segmental, "snap-over" type
X PEEK, one-piece, "snap-over" pocket
Y Brass, formed ring, circular pockets
Z Other (toroids, slugs, spacer balls or others available)

 

Position 8—Precision
(ABEC specifications are per ABMA standard 26.2)
0 Kaydon precision class 1 per ABEC 1F
1 Kaydon precision class 1 with class 4 runouts
2 Kaydon precision class 1 with class 6 runouts
3 Kaydon precision class 3 per ABEC 3F
4 Kaydon precision class 4 per ABEC 5F
6 Kaydon precision class 6 per ABEC 7F
8 Other

 

Position 9—Bearing internal fit
A .0000 to .0005 clearance
B .0000 to .0010 clearance
C .0005 to .0010 clearance
D .0005 to .0015 clearance
E .0010 to .0020 clearance
F .0015 to .0025 clearance
G .0020 to .0030 clearance
H .0030 to .0040 clearance
I .0040 to .0050 clearance
J .0050 to .0060 clearance
K .0000 to .0005 preload
L .0000 to .0010 preload
M .0005 to .0010 preload
N .0005 to .0015 preload
P .0010 to .0020 preload
Q .0010 to .0015 preload
R .0015 to .0025 preload
S .0020 to .0030 preload
Z Other clearance or preload not specified above
Type X or C = diametral preload or clearance
Duplexed type A = axial preload or clearance
 
Note: Above internal bearing fits apply to unmounted bearings only.
Mounting fits can greatly affect final internal bearing fit.

 

Position 10–13—DFAR compliance
All Reali-Slim® bearings requiring compliance with Defense Federal Acquisition Regulations (DFAR) "Specialty Metals" and "the Restrictions on Acquisition of Ball and Roller Bearings" clauses will contain '-USA' in positions 10-13. If internal fit is not called out in position 9, it will also contain a dash.

Example #1: KG120XP0L-USA
Example #2: KG120XP0--USA

spacer spacer

 
 

 
 

 

About
Overview
75 years
News
Trade shows
Kaydon
companies

Locations
Certifications
Jobs

Home
Site map
Search
Login
Register

Thin section
bearings

Overview
Bearing selector
Reali-Slim® bearings:
      Open bearings
      Sealed bearings
      Endurakote® bearings
      Stainless steel bearings
      MM® metric bearings
      TT® turntables
Ultra-Slim® bearings
Custom bearings

Slewing ring
bearings

Overview
Slewing bearing selector
Four-point contact:
      RK slewing bearings
      HS slewing bearings
      HT slewing bearings
      MT slewing bearings
      KH slewing bearings
      XT slewing bearings
Eight-point contact:
      DT slewing bearings
Cross roller:
      XR slewing bearings
Three-row roller:
      TR slewing bearings

Bearing
repair

Overview
Our process
Case studies
White papers
FAQs
Request for
quote

Markets
Aerospace
& defense

Commercial
aerospace

Heavy
equipment

Industrial
machinery

Medical
systems

Mining
Oil & gas
Renewable
energy

Semiconductor

Resources
Engineering
R & D
Thin section bearing selector
Slewing bearing selector
Engineering software
Videos
Lit downloads
Thin bearing
CAD models

White papers
FAQs

Distributors
North America
International

Contact
Contact us & literature request
Customer service
Request for quote:
      Standard products
      Bearing remanufacturing
Specification data sheets:
      Custom bearings
      Slewing ring bearings
Return material request
Terms of use
Privacy policy
Supplier info

Twitter LinkedIn YouTube RSS news feed

 
 
©2010–2017 Kaydon® Bearings, an SKF Group Company. All rights reserved.
Kaydon®, the Kaydon® logo, and all other trademarks, unless otherwise noted, are owned or licensed by Kaydon® Bearings.
Muskegon, Michigan USA  |   231.755.3741  |   800.514.3066

SKF