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Bearing designation

Closure group

Brand

SKF85INA72IKO36KOYO35NSK20FAG14EZO7

Product family

Deep groove ball bearings33Single row deep groove ball bearings20Bushings, thrust washers and strips19Inner rings16Cam followers (stud-type track rollers)9Needle roller bearings9Standard type rod ends9Support rollers (yoke-type track rollers)8Miniature ball bearing5Shell type needle roller bearings5Machined type needle roller bearings4Extra-small, miniature ball bearings / flanged type / open3Extra-small, miniature ball bearings / flanged type / shielded zz3Extra-small, miniature ball bearings / standard type / open3Extra-small, miniature ball bearings / standard type / shielded zz3Needle roller cages for general use3Drawn cup needle roller bearings / metric series, caged2Extra-small, miniature ball bearings / standard type / contact sealed 2rs2Extra-small, miniature ball bearings / standard type / non-contact sealed 2ru2Flanged miniature ball bearing2Heavy-duty needle roller bearings / metric series, caged, without inner ring2Radial spherical plain bearings2Steel-on-steel spherical bushings2Clean / clean pro bearing-pr1Clean / clean pro bearing-rb1Clean / clean pro bearing-rz1Clean / exsev-ex1Clean / exsev-fa1Corrosive / ceramic bearings1Electric field / hybrid ceramic bearings1Extra-small, miniature ball bearings / standard type / extremely light contact sealed 2rd1High-temperature / exsev-xt1Needle roller bearings with separable cage1Needle roller cages for engine connecting rods1Vacuum / corrosion guard pro bearing-md1Vacuum / exsev-mg1Vacuum / exsev-mo1Vacuum / exsev-pn1Vacuum / full complement ceramic ball bearings1Vacuum / non-magnetic hybrid ceramic bearings1

Detailed product type

Deep groove ball bearings62Needle roller bearings22Inner rings18Rod ends17Special-environment bearings14Stud type track roller13Deep groove ball bearing with seals or shields12Stainless steel deep groove ball bearing with integral sealing12Spherical plain bearings10Yoke type track roller8Bush7Drawn cup needle roller bearing open end6Needle roller cage assembly5Sintered bronze straight bushing5Cam follower (stud-type track roller) with integral sealing and relubrication feature4Inner ring for needle roller bearings, ir series4Ptfe composite straight bushing4Support rollers (yoke-type track rollers) with flange rings, integral sealing and relubrication feature4Cam follower (stud-type track roller) with relubrication feature3Pom composite straight bushing3Radial rotary shaft seal3Sintered bronze flanged bushing3Support rollers (yoke-type track rollers) with flange rings and relubrication feature3Cam follower (stud-type track roller) with eccentric collar, integral sealing and relubrication feature2Precision locknut2Ptfe composite flanged bushing2Ptfe polyamide flanged bushing2Single row needle roller and cage assembly2Single row needle roller bearing with machined rings, with flanges2Single row needle roller bearing with machined rings, with flanges, without inner ring2Stainless steel deep groove ball bearing2Stainless steel deep groove ball bearing with flanged outer ring and integral sealing2Drawn cup needle roller bearing closed end1Drawn cup needle roller bearing with a closed end1Drawn cup needle roller bearing with open ends1Drawn cup needle roller bearing with open ends and integral sealing1Hybrid ceramic deep groove ball bearing with seals on both sides1Inner ring for needle roller bearings, ir series, with lubrication feature1Radial spherical plain bearing, maintenance-free, metric sizes1Radial spherical plain bearing, requiring maintenance, metric sizes1Support roller (yoke-type track roller), without flange rings and inner ring1

Bearing dimensions

Minimum and maximum (mm)

Inside d

Outside D

Width B

Height H

Technical attributes

Series

KR169LRT5HK12104IRT4625363436883KT3S6883GE8-DO2IR12X16X132LRTZ2PHS2PHS…EC2POS2POS…EC2S6252TA2TAF2TAFI2TLA2GE…ES / E1GE…GS / G1IR12X16X121IR12X16X141IR12X16X161IR12X16X201IR12X16X221K10X16X121K12X16X131K12X16X81KBK12X16X131KRE161KRV161KT…EG1KZK12X16X101LR6051NATR51NATV51NK9/121NK9/161NKI6/121NKI6/161PB1RNAFW1RSTO51TLAM1

Sealing2RS vs ZZ selection guide →

Seal on both sides26Shield on both sides17Without16Open122Z — Non-contact shield on both sides6Metal shields on both sides (ZZ1)6Shielded ZZ62RSR — Contact seal on both sides5Contact rubber seals on both sides (DD)4Non-contact rubber seals on both sides (VV)4Two pressed-steel shields3Without — Not sealed3Contact sealed 2RS2Non-contact sealed 2RU2Open (no closure suffix in this catalogue marking)2Two contact rubber seals2Extremely light contact sealed 2RD1Seal on one side1Shield on one side1

Internal clearance

CN38Between C2 and CN16CN (Group N) — Normal internal clearance13C32C3 (Group 3) — Internal clearance larger than CN1CNH1Not applicable1

Precision class

JIS, Class 014PN — Normal (ISO 492:2023)14Normal6P6 and tighter width tolerance3

Cage

Stamped stainless steel16JN — Steel sheet metal14Sheet metal13With10Non-metallic9Without7Low Carbon Steel5Steel5Carbon Steel4Sheet steel3

Bearing material

Bearing steel42High Carbon Chrome Steel16Stainless steel16High-carbon chromium bearing steel7Chromium Molybdenum Steel5Carbon Steel4High Carbon Chromium Bearing Steel2High Carbon Steel1Hybrid (ceramic balls)1

Lubricant

Grease44None14Lubricating grease11Without — Bearing not greased3Solid Oil1

Performance

Dynamic load ≥ kN

Static load ≥ kN

Limit speed ≥ r/min

Mass ≤ kg

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