NRB NRA Needle

Needle and roller  Generally grinding by bearing steel wire, it’s rolling element of needle roller bearing and roller bearing with high precision and stability. FY needle roller and roller are in G2 group.

 

Main Characteristic

►High hardness

►High precision

►Widely use

 

Material GCr15 chrome steel
Process Grinding
Heat treatment Quenching

 

  Structure instruction
NRB Chamfer at end surface
NRA Round at end surface
ZRB Grinding at end surface

 

Category: Tag:

Description

Image and structure of   NRB NRA Needle

Detail dimension of

NRB NRA Needle

MODEL MODEL
Dw Dw Lw Dw Dw Lw
mm mm mm mm
1 NRB1X7,8-G2 1 7,8 3 NRB3X21,8-G2 3 21,8
1,5 NRB1,5X5,8-G2 1,5 5,8 NRB3X23,8-G2 3 23,8
NRB1,5X6,8-G2 1,5 6,8 3,5 NRB3,5X11,8-G2 3,5 11,8
NRB1,5X7,8-G2 1,5 7,8 NRB3,5X13,8-G2 3,5 13,8
NRB1,5X9,8-G2 1,5 9,8 NRB3,5X15,8-G2 3,5 15,8
NRB1,5X11,8-G2 1,5 11,8 NRB3,5X17,8-G2 3,5 17,8
NRB1,5X13,8-G2 1,5 13,8 NRB3,5X19,8-G2 3,5 19,8
2 NRB2X6,3-G2 2 6,3 NRB3,5X21,8-G2 3,5 21,8
NRB2X7,8-G2 2 7,8 NRB3,5X29,8-G2 3,5 29,8
NRB2X9,8-G2 2 9,8 NRB3,5X34,8-G2 3,5 34,8
NRB2X11,8-G2 2 11,8 4 NRB4X11,8-G2 4 11,8
NRB2X13,8-G2 2 13,8 NRB4X13,8-G2 4 13,8
NRB2X15,8-G2 2 15,8 NRB4X15,8-G2 4 15,8
NRB2X17,8-G2 2 17,8 NRB4X17,8-G2 4 17,8
NRB2X19,8-G2 2 19,8 NRB4X19,8-G2 4 19,8
NRB2X21,8-G2 2 21,8 NRB4X21,8-G2 4 21,8
2,5 NRB2,5X7,8-G2 2,5 7,8 NRB4X23,8-G2 4 23,8
NRB2,5X9,8-G2 2,5 9,8 NRB4X25,8-G2 4 25,8
NRB2,5X11,8-G2 2,5 11,8 NRB4X27,8-G2 4 27,8
NRB2,5X13,8-G2 2,5 13,8 NRB4X29,8-G2 4 29,8
NRB2,5X15,8-G2 2,5 15,8 NRB4X34,8-G2 4 34,8
NRB2,5X17,8-G2 2,5 17,8 NRB4X39,8-G2 4 39,8
NRB2,5X19,8-G2 2,5 19,8 5 NRB5X15,8-G2 5 15,8
NRB2,5X21,8-G2 2,5 21,8 NRB5X19,8-G2 5 19,8
NRB2,5X23,8-G2 2,5 23,8 NRB5X21,8-G2 5 21,8
3 NRB3X9,8-G2 3 9,8 NRB5X23,8-G2 5 23,8
NRB3X11,8-G2 3 11,8 NRB5X25,8-G2 5 25,8
NRB3X13,8-G2 3 13,8 NRB5X27,8-G2 5 27,8
NRB3X15,8-G2 3 15,8 NRB5X29,8-G2 5 29,8
NRB3X17,8-G2 3 17,8 NRB5X34,8-G2 5 34,8
NRB3X19,8-G2 3 19,8 NRB5X39,8-G2 5 39,8

 

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