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Brief introduction to JJJ bearing code with accessories

Resource from: Likes:215
May 31,2023

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


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








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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