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Part Numbering System of ball bearings

Part Numbering System

(Please place the mouse cursor over each column to show part numbering details.)

Ball Bearing - NMB Part Numbering System

BEARING PART NUMBER BEARING SPEC. BASIC BEARING NUMBER BASIC BEARING SUFFIX DIMENSIONAL ACCURACY SPEC. LUBRICANT SPEC. 1 2 3 4 5 6 7 8 9 10 RING & BALL MATERIAL BEARING  SERIES SIZE REF. ENCLOSURE SPECIAL FEATURE / NOISE GRADE RETAINER PRECISION    GRADE CLEARANCE LUBRICANT      TYPE LUBRICANT FILL QTY. DD R- 1560 ZZ MT R P0 P25 LY121 L No Code SUJ2 or equivalent (e.g. AISI52100) DD NMB developed stainless steel KK NMB developed high carbon chromium steel Radial Ball Bearing       Thrust Series   Metric Series Inch Series       T-     R-Thick Section   RI-     L-Thin Section   RIF-Flanged   Special Series     A-Extra Thin Section           ZB-     RF-Flanged Thick Section           AS-     LF-Flanged Thin Section           RO-     AF-Flanged Extra Thin Section     NR-Snap Ring on Outer Ring O.D. The Size Ref. is created from the dimensions of the Bore and Outside Diameter. e.g.     R-1560 O.D. 15mm; Bore 6.0mm RI-418 O.D. is the numerator of 4/16"   Bore 1/8"   X Code of bearing internal design Z Removable shield, snap ring type H Non-removable shield, stamped type S Rubber seal, non-contact D Rubber seal, contact K Non-removable shield, stamped type       Indicate same code twice   when both sides are to be enclosed. W Wider width than standard Y Thinner width than standard     SD Special design No code Standard noise grade MT Extremely noise sensitive application GT Hard Disk Drive spindle motors R Steel Ribbon Type   H Steel Crown Type   MN Molded Nylon Crown Type     JIS Grade;   P0 JIS Grade 0 P5 JIS Grade 5   ABMA Grade;   A3 ABEC 3P A5 ABEC 5P     PXX Radial Clearance     Denotes the upper and lower limits of the radial clearance in 0.0001".     (Example) When the clearance is 5µm -12.5µm, it is 0.0002"-0.0005" and mentioned as P25.     LO Oil LG Grease LY Oil or Grease LD No Lubricant     No Code   25vol% - 35vol% X     5vol% - 10vol% L   10vol% - 15vol% T   15vol% - 20vol% H   40vol% - 50vol% J   50vol% - 60vol% F 100vol%     Note :Some miniature size bearings have a slightly adjusted grease quantity than above.   Ball Bearing - JIS Part Numbering System BEARING PART NUMBER BEARING SPEC. BASIC BEARING NUMBER BASIC BEARING SUFFIX 1 2 3 4 5 6 7 8 9 10 11 12 RING & BALL MATERIAL BEARING SERIES BORE SIZE RETAINER ENCLOSURE SPECIAL DESIGN SPECIAL FEATURE CLEARANCE NOISE GRADE PRECISION     GRADE LUBRICANT TYPE LUBRICANT FILL QTY. 60 8   ZZ     M3 MT   LY121 H No Code SUJ2 or equivalent (e.g. AISI 52100)     KK NMB developed high carbon chromium steel. 60 62 63   Single row deep groove ball bearing 5 Bore = 5mm 6 Bore = 6mm ·     · ·     · 00 Bore = 10mm No Code Steel Ribbon Type MN Molded Nylon Crown Type         Z Non-removable shield, stamped type S Rubber seal, non-contact D Rubber seal, contact       Indicate same code twice   when both sides are to be enclosed. NR Snap Ring on Outer Ring O.D. SD Special Design     Radial Clearance M2   3µm -   8µm M3   5µm - 10µm M4   8µm - 13µm M5 13µm - 20µm     SM Standard noise grade MT Extremely noise sensitive application     JIS Grade;     No Code JIS Grade 0 P5 JIS Grade 5     ABMA Grade;     A3 ABEC 3P A5 ABEC 5P     LO Oil LG Grease LY Oil or Grease LD No Lubricant     No Code   25vol% - 35vol% X     5vol% - 10vol% L   10vol% - 15vol% T   15vol% - 20vol% H   40vol% - 50vol% J   50vol% - 60vol% F 100vol%

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More products from SUNTHAI    Series of Miniature Ball Bearing    Series of Deep Groove Ball Bearing  Plane Thust Bearings  Series of Linear Bearing  Center-Adjustable and Angular Contact Ball Bearing  Needle Roller Bearing         Cylindrical (Taper) Roller Bearings   Centripetal Joint Bearing      Non-Standard Ball Bearing

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