Metric type: HK.BK.F.FH.FY.MF.MFH.MFY, TA..Z.TLA..Z.TAM.TLAM.YT.YTL.
Inch type: SCE.BCE.SCH.BCH.SN.B.BH.M.MH.,BA...Z.BHA...Z.BAM.BHAM.YB.YBH. Such as HK series, BH series.
The main structure form
Metric series: HK, BK, F, FH, FY, MF, MFH, MFY; TA... Z, TLA.. Z, TAM, TLAM, YT, YTL.
English series: SCE, BCE, SCH, BCH, SN, B, BH, M, MH,; BA... Z, BHA... Z, BAM, BHAM, YB, YBH.
Example: HK XX YY
Model inscribed circle diameter XX height YY
RS - - - - - - for a seal, match metric system
2 rs - - - - - for two seals, match metric system
P - - - - - - - for a seal, match the imperial system
PP - - - - - - for two seals, match the imperial system
ASI/OH - - - for oil hole
HK, BA, TA... Z - hole type drawn cup needle roller bearing
BK, TAM, TLAM - seal mouth drawn cup needle roller bearing
F - hole type drawn cup full needle roller bearing
FY, YT - hole type drawn cup full needle roller bearings (grease limit)
FH, YTL - hole type drawn cup full needle roller bearings (heavy series)
MF - seal mouth drawn cup full needle roller bearing
MFH, sealing the mouth drawn cup full needle roller bearing
SCE - hole type drawn cup needle roller bearing
BCE - seal mouth drawn cup needle roller bearing
SCH - hole type drawn cup needle roller bearing
BCH - seal mouth drawn cup needle roller bearing
SN - hole type drawn cup full needle roller bearing
B - hole type drawn cup full needle roller bearing
BH - hole type drawn cup full needle roller bearings (heavy series)
M - seal mouth drawn cup full needle roller bearing
MH, sealing the mouth drawn cup full needle roller bearings (heavy series)
Product Model | Inside Diameter | Outside Diameter | Thickness |
6911ZZ NSK | 55 | 80 | 13 |
6811ZZ NSK | 55 | 72 | 9 |