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                                                                   BEARING DATA

 

Bearing codes need not be a puzzle

          Here we will try & explain some of the bearing data that could help you have a better understanding of what at first might just look like a bunch of numbers,

 

          We will start with the most common asked questions,

 

Bearing Suffixes:

 

         Suffixes are used to identify designs or variants which differ in some way from the original design, or which differ from the current standard design, each bearing manufacture have there own suffix & this is where it becomes a little confusing,

 

The most commonly used suffixes are listed below,

Suffix RS, LU, DU, RSR, E
Bearing with one rubber seal
Example 6205 LU

Suffix 2RS, 2RSH, 2RS1, LLU, DDU, 2RSR, EE
bearing with two rubber seals
Example 6205 LLU

Suffix Z, ZR
bearing with one metal shield
Example 6205 ZR

Suffix 2Z, 2ZR, ZZ
bearing with two metal shields
Example 6205 2Z

Suffix NR
bearing with snap ring groove & snap ring
Example 6205 NR

Suffix RSNR
bearing with one rubber seal & snap ring groove with snap ring
Example 6205 RSNR

Suffix 2RSNR, 2RS1NR, 2RSHNR, 2RSRNR, LLUNR, DDUNR, EENR
bearing with two rubber seals & snap ring groove with snap ring
Example 6205 2RS1NR

Suffix 2ZNR, ZZNR, 2ZRNR
bearing with two metal shields & snap ring groove with snap ring
Example 6205 2ZNR

Suffix ZNR
bearing with one metal shield & snap ring groove with snap ring
Example 6205 ZNR

Suffix M, MA, MB, ML, MP, BR
bearing with brass cage
Example 6318 MA

Suffix ETN9, TNH, TN, ETVP2, TN9, ETVP, TVP, ECP, E.G15, ET, ETN, ET2X
bearing with polymide plastic cage
Example N205 ETN9

Suffix C2, F3
bearing with internal clearance smaller than normal
Example 6205 C2

Suffix C3, J30, F4
bearing with internal clearance greater than normal
Example 6205 C3

Suffix C4
bearing with internal clearance greater than C3
Example 6205 C4

Suffix C5
bearing with internal clearance greater than C4
Example 6205 C5

Suffix GJN
bearing with high temp grease -30 to +150 ºC
Example 6205 GJN

Suffix HT
bearing with high temp grease -40 to +150 ºC
Example 6205 HT

Suffix WT
bearing with high temp grease -40 to +160 ºC
Example 6205 WT

Suffix VL0241
bearing with aluminium oxide coated outside surface of the outer ring for electrical resistance up to 1000 V DC
Example 6317 MC3VL0241

Suffix VL2071
bearing with aluminium oxide coated outside surface of the inner ring for electrical resistance up to 1000 V DC
Example 6324 C3VL2071