Rodamientos NSK – La lista definitiva de prefijos y sufijos

Tienda de rodamientos de bolas

The complete guide for bearing suffixes and prefixes.

NSK es una de las empresas líderes en la fabricación de rodamientos con un larga tradición en aplicaciones de patentes para partes de máquina. NSK no solo se concentra en el desarrollo de nuevas tecnologías, sino también sobre la mejora continua de la calidad basado en la plataforma tecnológica integrada de tribología, tecnología de materiales, análisis y mecatrónica.

Los códigos de pedido de los rodamientos se componen de una combinación de letras y números. Esta combinación alfanumérica denota el tipo, tamaño y estructura del rodamiento.

Dentro de cada código de pedido, se hace una distinción entre la designación básica y cualquier sufijos y / o prefijos. La designación básica indica el tipo de rodamiento y el tamaño del orificio. Estas designaciones básicas se definen en el Norma alemana DIN 623 y la correspondiente Norma ISO.

Para la mayoría de los tipos de rodamientos, la designación básica se compone de números, pero algunos son alfanuméricos. Prefijos y los sufijos denotan modificaciones especiales, por ejemplo si el juego interno o la precisión desviarse de la norma.

El uso de prefijos y los sufijos están estandarizados solo parcialmente. Los sufijos son los que más difieren, con los diversos fabricantes de rodamientos que utilizan códigos diferentes para ciertas modificaciones. Esta guía sirve para explicar los diversos códigos de rodamientos utilizados por NSK y RHP y le ayuda a compararlos con designaciones de otros fabricantes.

NSK suffixes and bearing part number system

NSK bearings utiliza una gran cantidad de sufijos para indicar modificaciones estructurales en los diferentes tipos de rodamientos.

Específicamente, los sufijos proporcionan información sobre:

  • Tipo de medidor
  • Diseño interno
  • Sello
  • Lubricante utilizado
  • Tolerancias
  • Espacio interior
  • Diseño externo

La siguiente tabla muestra la lista completa de sufijos (NSK bearing suffixes)

Suffix / Sufijo Definition / Definición
+AH WITHDRAWAL OR REMOVAL SLEEVE.
+H ADAPTER SLEEVE.
+HJ STABILIZING RING/ CYLINDRICAL ROLLER BEARINGS.
+K OUTER RING SPACER, TAPERED ROLLER BEARINGS.
+KL INNER AND OUTER RING SPACER, TAPERED ROLLER BEARINGS.
+L INNER RING SPACER, TAPERED ROLLER BEARINGS.
-8 BORE SIZE, 1/2 INCH DIAMETER.
-10 BORE SIZE, 5/8 INCH DIAMETER.
-100 BORE SIZE, 1 INCH DIAMETER.
-107 BORE SIZE, 1-7/16 INCH DIAMETER.
-12 BORE SIZE, 3/4 INCH DIAMETER.
-13M BORE SIZE, 13 MM DIAMETER.
-14 BORE SIZE, 7/8 INCH DIAMETER.
-625 BORE SIZE, 0.6250 INCH DIAMETER.
-8 BORE SIZE, 1/2 INCH DIAMETER.
1 1/8 FULL.
2 1/4 FULL.
3 3/8 FULL.
4 1/2 FULL.
5 5/8 FULL.
6 3/4 FULL.
7 7/8 FULL.
8 100 PERCENT FULL
9 DIP.
A INTERNAL REDESIGN.
A 30 DEGREE CONTACT ANGLE, ANGULAR CONTACT BALL BEARINGS.
AB ANDOK B.
AC ANDOK C.
AE AEROSHELL 15.
AE3 ABEC-3 TOLERANCE.
AE5 ABEC-5 TOLERANCE.
AF AEROSHELL 17.
AK ANDOK 260.
AN ANDEROL L-423 OIL.
AR AEROSHELL 5.
AS AEROSHELL 7.
AT AEROSHELL 16.
AW AEROSHELL 22.
AX AEROSHELL 6.
B INTERNAL REDESIGN.
B 40 DEGREE CONTACT ANGLE, ANGULAR CONTACT BALL BEARINGS.
BS X8388A (BATCO) .
BT BEACON 325.
C INTERNAL REDESIGN.
C 15 DEGREE CONTACT ANGLE, ANGULAR CONTACT BALL BEARINGS.
C2 TIGHT FIT, AFBMA CLASS 2.
C3 LOOSE FIT, AFEMA CLASS 3.
C4 EXTRA LOOSE FIT, AFBMA CLASS 4.
CA SPHERICAL ROLLER BEARING.
CC STANDARD, NON-INTERCHANGEABLE FIT, CYLINDRICAL ROLLER BEARINGS.
CC2 LESS THAN STANDARD NON-INTERCHANGEABLE FIT, CYLINDRICAL BEARINGS.
CC4 GREATER THAN CC3 FIT, CYLINDRICAL ROLLER BEARINGS.
CCS GREATER THAN CC FIT, CYLINDRICAL ROLLER BEARINGS.
CD SPHERICAL ROLLER BEARING.
CE ELECTRIC MOTOR QUALITY BEARING AND FIT.
CH CHEVRON OHT.
CHS WATER PUMP BEARING WITH SLINGER RING.
CM ELECTRIC MOTOR QUALITY BEARING AND FIT.
CT ELECTRIC MOTOR QUALITY BEARING AND FIT.
D STEEP CONTACT ANGLE, TAPERED ROLLER BEARING.
DA DOW CORNING DC99 – NO. 2.
DB SUPERNAL GREASE NO. 72832.
DB DOW CORNING FS3451 – NO. 2.
DB DUPLEX PAIR, BACK-TO-BACK MOUNTING.
DDU TWO RUBBER CONTACT SEALS.
DE DC41.
DF DC44.
DH DOW CORNING 510.
DH WATER PUMP BEARING, DULITED AND HANED PARTS.
DP DUPLEX PAIR, FACE-TO-FACE MOUNTING.
DS DC FS 1291.
DT DC33.
DT DUPLEX PAIR, TANDEM MOUNTING.
DU SINGLE RUBBER CONTACT SEAL.
DV DC FS 1292.
E BEARING WITH SLOT OR KEYWAY.
E100 SPECIAL BEARINGS (MIL-B-17931C) .
E101 GREASE QUANTITY AND TEFLON SEAL ELEMENT, SPECIAL.
E4 OUTER RING RELUBRICATION FEATURE, SPHERICAL BEARINGS.
ES11 SPECIAL GREASE VOLUME.
ES12 SPECIAL CARTON MARKING.
ES13 SPECIAL CORNER RADIUS.
ES15 SPECIAL END PLAY.
ES16 SPECIAL PROCESSING.
ES17 SPECIAL CLEANING.
ES18 RADIAL PLAY LIMITS SPECIAL.
ES19 SPECIAL CLEANING, LUBRICATION.
ES20 RADIAL PLAY, GAGING LOADS, SPECIAL.
ES21 HEAT STAB, FOR 325°F OPERATION.
ES22 XT RADIAL PLAY, SPECIAL.
ES24 (MIL-B-17931A) , AMENDMENT 2, LOW NOISE LEVEL.
ES25 HIGH-SPEED TEST.
ES26 DULITE PROCESSED.
ES27 END PLAY AND TILT LIMITS, SPECIAL.
ES28 DULITE PROCESSED.
ES29 SPECIAL SHIELD MARKING.
ES3 100 PERCENT SPEED TEST, LOW NOISE LEVEL.
ES30 QUALITY AUDIT, SPECIAL.
ES31 TORQUE LIMITS, SPECIAL.
ES32 SPECIAL INSPECTION.
ES33 LOW NOISE LEVEL.
ES34 ULTRASONIC CLEANING.
ES35 FLUSHNESS TOLERANCE SPECIAL.
ES36 SPECIAL IDENTIFICATION.
ES37 DULITE SHIELD.
ES38 SPECIAL END PLAY.
ES39 ELECTRONIC NOISE TESTING.
ES40 HEAT STABILIZED, SPECIAL.
ES41 STABILIZATION FOR 375 DEG F OPERATION.
ES42 «HS 2» MARKING ON OUTER.
ES43 GREASE CONTROL, SPECIAL.
ES44 REDUCED INSPECTION LIMITS.
ES45 LAPPED INNER FACE.
ES46 OVERSIZE O.D. ‘ S.
ES47 SPECIAL FOR RAILROAD APPLICATION.
ES48 SPECIAL O.D. TOLERANCE.
ES49 SHIELD IDENTIFICATION, SPECIAL.
ES50 REWORK IDENTIFICATION.
ES51 SPECIAL TOLERANCES.
ES52 SOLVENT CLEAN PARTS , SPECIAL .
ES53 SPECIAL PROCESSING.
ES54 SPECIAL FOR RAILROAD APPLICATIONS.
ES55 SPECIAL 77R6. /
ES56 RADIAL LOOSENESS CHECK ,_ SPECIAL .
ES57 SPECIAL O.D. CORNER.
ES58 HIGH POINT MARKING ON INNER RING.
ES59 O.D. CODING.
ES6 CERTIFIED QUALITY CONTROL.
ES60 SPECIAL GREASING.
ES61 ES-41 AND SPECIAL GREASING.
ES62 SHIELD OR SEAL ASSEMBLY, SPECIAL.
ES63 SPECIAL 7038.
ES65 SPECIAL MARKING INSTRUCTIONS.
ES66 SPECIAL IDENTIFICATION.
ES67 SPECIAL GREASE AND QUANTITY.
ES68 SPECIAL GREASE QUANTITY.
ES7 SPECIAL PROCESS, SPECIAL CARTON MARKING.
ES70 SPECIAL MARKING.
ES71 SPECIAL WIDTH TOLERANCE.
ES72 SPECIAL LUBRICATION.
ES73 SPECIAL PROCESSING.
ES74 SPECIAL RING MARKING.
ES75 BEARINGS SERIAL NUMBERED.
ES82 RELUBE TYPE SHIELDS.
ES83 ELECTRO-GALVANIZING .
ES84 SPEC, INTERNAL CLEARANCE AND SPECIAL GREASE QUANTITY.
ES85 SPECIAL GREASE QUANTITY.
ES9 (MIL-B-17931A) , AMENDMENT 1, LOW NOISE LEVEL.
ESI HAND SPIN TEST, LOW TORQUE.
ESS SHIELD CLEARANCE 0.003 INCH, SPEC, TOLERANCE.
ESS LOW NOISE LEVEL.
F SINGLE SHIELD, DOUBLE-ROW BALL BEARINGS.
FF TWO SHIELDS, DOUBLE-ROW BALL BEARINGS.
FM FISKE LUBRIPLATE – MULTI-LUBE A.
FT FISKE LUBRIPLATE 210.
G SNAP RING ON BEARING.
GNR SNAP RING GROOVE ON BEARING, NO SNAP RING.
GS SNAP RING ON SAME SIDE OF BEARING AS SHIELD.
HP HUMBLE OIL UNIVIS P38.
HX HUMBLE OIL UNIREX NO. 2.
J PRESSED STEEL RETAINER, TWO PIECE RIBBON TYPE.
K TAPERED BORE BEARING 1:12.
K30 TAPERED BORE BEARING 1:30.
KH KEYSTONE 89H.
KY DUPONT, KRYTOX 240AC.
LU LUBRIKO M24.
M MACHINED BRONZE RETAINER.
M MEDIUM FIT, AFBMA CLASS 0.
MT MOBIL-TEMP £1 SOCONY VACUUM.
N SNAP RING GROOVE IN OUTER RING.
NF NON-FLUID OIL CP. F924.
NG NON-FLUID OIL CO. G-60.
NR NOX – RUST 509.
NR SNAP RING IN OUTER RING.
NS NON-FLUID OIL CO. S-59.
NW NON-FLUID OIL CO. W-56.
OS2 WATER PUMP BEARING, SHAFT 0.002 INCH OVERSIZE.
OS3 WATER PUMP BEARING, SHAFT 0.003 INCH OVERSIZE.
PE PETROLATUM
RR O.D. RIDING TRASH GUARD RUBBER CONTACT SEALS.
RS FACE RIDING RUBBER CONTACT SALES.
RY RYKON 12.
SA SHELL ALVANIA $2
SB SHELL XSG6409.
SC SHELL CYPRINA £3.
SD SHELL DARINA J2.
SE SHELL DARINA EP.
SF SHELL DARINA FL.
SG STANDARD GREASE CODE.
SL SHELL ALVANIA 13.
SO STANOIL 15.
SP SHELL ALVANIA $2 EP.
SW SOUTHWEST GREASE AND OIL CO., CODE 5682.
SX SHELL DARINA AX.
T FACE RIDING TRASH GUARD RUBBER CONTACT SEAL.
T TIGHT FIT, AFBMA CLASS 2.
TB TEXACO PREMIUM BRB.
TC TEXAS CAPELLA B.
TE TEXAS EP 2324 HI-TEMP.
TH TEXAS 1999 HI-TEMP.
TL ASHLAND OIL TECTYL 900.
TM TEMPLUBE 124.
TR TEXAS REGAL STARFAK AFB-2 .
TT TWO FACE RIDING TRASH GUARD RUBBER CONTACT SEALS.
TU TEXAS 1996 UNI-TEMP 500.
TX TEXAS 1692.
UC SUPERMIL GREASE NO. 31052.
UF ASU 40.
UN UNOBA JL UNION OIL.
US ASU 06752 (AMERICAN OIL) .
UT ASU 100.
V LABYRINTH RUBBER SEAL .
VA CHEVRON BRB2
VS CHEVRON SRI
W TWO LABYRINTH RUBBER SEALS.
W PRESSED STEEL RETAINER, ONE PIECE TYPE.
WN WINDSOR L245X
X REDESIGNED BOUNDARY DIMENSION OF LESS THAN + 1 MM.
XL EXTRA LOOSE FIT, AFBMA CLASS 3.
XT EXTRA TIGHT FIT, LESS THAN AFBMA CLASS 2.
Y PRESSED BRASS RETAINER, TWO PIECE, RIBBON TYPE.
Z SINGLE SHIELD.
ZZ GREASE SPE CIS PART OF ES NUMBER.
ZZ TWO SHIELDS.

 

NSK prefixes and bearing part number system

Los prefijos se utilizan relativamente raramente. Sirven casi exclusivamente para indicar componentes individuales de rodamientos completos o para designar rodamientos en miniatura.

La siguiente tabla muestra la lista completa de sufijos (NSK bearing prefixes)

Prefix Definition
7 SINGLE SHIELD.
77 TWO SHIELDS.
8 FELT SEAL.
87 ONE FELT SEAL, ONE SHIELD.
88 TWO FELT SEALS.
89 ONE FELT SEAL, ONE TEFLON SEAL.
9 TEFLON SEALS.
99 TWO TEFLON SEALS.
H HEAVY SERIES CUP OR CONE, TAPERED ROLLER BEARINGS.
HH EXTRA HEAVY SERIES CUP OR CONE, TAPERED ROLLER BEARINGS.
HM MEDIUM-HEAVY SERIES CUP OR, CONE , TAPERED ROLLER BEARINGS.
L LIGHT SERIES CUP OR CONE, TAPERED ROLLER BEARINGS.
LL EXTRA LIGHT SERIES CUP OR CONE, TAPERED ROLLER BEARINGS.
LM MEDIUM-LIGHT SERIES CUP OR CONE, TAPERED ROLLER BEARINGS.
M MAX-TYPE, FILLING SLOT BALL BEARINGS.
M MEDIUM SERIES CUP OR CONE, TAPERED ROLLER BEARINGS.
MS SHIELD AND LOADING SLOT ON SAME SIDE, BALL BEARINGS.
N CYLINDRICAL BEARING, DOUBLE FLANGED INNER, OPEN OUTER.
NF CYLINDRICAL BEARING, DOUBLE FLANGED INNER, SINGLE FLANGED OUTER.
NH CYLINDRICAL BEARING, TWO-PIECE INNER, DOUBLE FLANGED OUTER.
NJ CYLINDRICAL BEARING, SINGLE, FLANGED INNER, DOUBLE FLANGED OUTER.
NN CYLINDRICAL BEARING, DOUBLE-ROW, FLANGED INNER, OPEN OUTER.
NU CYLINDRICAL BEARING, OPEN INNER, DOUBLE FLANGED OUTER.
R INCH DIMENSION SERIES BALL BEARINGS.
RA POWER TRANSMISSION BALL BEARINGS, PRELUBRICATED.
RAG POWER TRANSMISSION BALL BEARINGS, RELUBRICATEABLE.
S CARTRIDGE BEARING SERIES.
SB POWER TRANSMISSION BEARING, WIDE INNER, PRELUBRICATED.
SBG POWER TRANSMISSION BEARING, WIDE INNER, RELUBRICATEABLE.
SE ECCENTRIC LOCKING COLLAR FOR POWER TRANSMISSION.
SF FOUR-BOLT FLANGE UNIT, STANDARD, RELUBRICATEABLE.
SFC FOUR-BOLT FLANGE UNIT, RA UNIT, PRELUBRICATED.
SFT TWO-BOLT FLANGE UNIT, STANDARD, RELUBRICATEABLE.
SFTC TWO-BOLT FLANGE UNIT, RA UNIT, PRELUBRICATED.
SP STANDARD HEIGHT PILLOW BLOCK, RELUBRICATEABLE.
SPC STANDARD HEIGHT PILLOW BLOCK, RA UNIT, PRELUBRICATED.
SPEC REVISED HEIGHT PILLOW BLOCK, RA UNIT, PRELUBRICATED.
SPH REVISED HEIGHT PILLOW BLOCK, RELUBRICATEABLE.
STU TAKE-UP UNIT BLOCK, RELUBRICATEABLE.
STUC TAKE-UP UNIT BLOCK, RA UNIT, PRELUBRICATED.
WC FELT SEAL SERIES BEARINGS, WIDE OUTER RING.
X SPECIAL BEARING SERIES.

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