Brief introduction to JJJ bearing code with accessories
31 May,2023

The bearing code with accessories is composed of the bearing code and the accessory code, and the specific codes are shown in Table 2-18.


Table 2-18 Bearing codes with attachments


Attachment Name

Bearing code with accessories

Example

New standards

0ld standards


Adapter sleeve



withdrawal sleeve



Inner ring




separate thrust collar




Bearing code+tightening sleeve code


Bearing code+disassembly sleeve code

Suitable for needle roller bearings without inner rings, needle roller combinations


Bearing code+lR

Applicable to cylindrical roller bearing bearing code+diagonal retaining ring code



22208K+ H308



22208K+AH308



NKX30+IR




NJ210+HJ210


253507



353507



NKX30IR




62210


Only applicable to packaging and marking of drawings, design documents, and manuals with accessory bearings, not applicable to bearing markings.


Can be combined to simplify NJ...+H]...=NH..., for example: NH 210.


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