Page 66 - needle bearings

Needle roller and cage assemblies
NTN

Needle Roller and Cage Assemblies

This needle roller and cage assembly is one of the or a housing as the direct raceway surface, without using
basic components for the needle roller bearing of a inner ring and outer ring.
construction wherein the needle rollers are fitted with a The needle rollers are guided by the cage more
cage so as not to separate from each other. The use of precisely than the full complement roller type, hence
this roller and cage assembly enables to design a enabling high speed running of bearing. In addition, its
compact and lightweight construction by utilizing a shaft rigidity and load capacity are high for the specific space.

Type of Applied shaft Composition of Nominal Code items and
needle roller and cage assembly Cage type diameter (mm) nominal bearing number bearing number respective dimensions
K
K 20 ʷ 24 ʷ 10 S
ʢKʝSʣ Machined ring type П3ʙП285 Inscribed circle
ʢKʝT2ʣ Polyamide resin type Tail code diameter : П20
Width Roller set outer
K20ʷ24ʷ10S diameter : П24
Roller set outer diameter
Width : 10
Inscribed circle diameter
Welded type П10ʙП100 S : Welded type
Type code
KMJ
ʢKMJʝSʣ KMJ 20 ʷ 26 ʷ 13
Punched type П15ʙП100 Inscribed circle
ʢPCJʣ
Width diameter : П20
Roller set outer diameter KMJ20ʷ26ʷ13 Roller set outer
diameter : П26
Inscribed circle diameter
Width : 13
Welded type П10ʙП40 Type code

KJʝS
KJ 30 ʷ 35 ʷ 17 S
Inscribed circle
diameter : П30
Tail code
Roller set outer
Welded type П20ʙП40 Width KJ30ʷ35ʷ17S
diameter : П35
Roller set outer diameter
Width : 17
Inscribed circle diameter
S : Welded type
Type code
KVʝS
KV 30 ʷ 35 ʷ 17 S
Inscribed circle
Tail code diameter : П30
Width Roller set outer
Welded type П7ʙП100 KV30ʷ35ʷ17S diameter : П35
Roller set outer diameter
Width : 17
Inscribed circle diameter
S : Welded type
Type code
KʝZW
K 20 ʷ 24 ʷ 45 ZW
Inscribed circle
diameter : П20
Tail code
Roller set outer
Width
Machined ring type П8ʙП285 K20ʷ24ʷ45ZW diameter : П24
Roller set outer diameter
Width : 45
Inscribed circle diameter
ZW : Double-row type
Type code
GK
GK 30 ʷ 35 ʷ 17
Inscribed circle
diameter : П30
Width
Machined ring type Roller set outer
П8ʙП285 Roller set outer diameter GK30ʷ35ʷ17
Split type diameter : П35
Inscribed circle diameter
Width : 17
Type code
The ones with tail code T2 using polyamide resin cage shall be used at allowable temperature 120˚C and, under continuous running, at 100˚C or less.
The applied shaft diameter of welded type are described based on size that manufacturers can deal with a manufacturing. Therefore, it has nothing to do with the Demention Table.
B-4