Page 85 - needle bearings

Needle roller and cage assemblies for connecting rod bearings
NTN

Nominal Code items and
bearing number respective dimensions Remarks

Inscribed circle diameter :П20
Cage intended to guide outer ring,
Roller set outer diamete r:П26 eventually surface- treated by non-
PK20ʷ26ʷ13.8̭1
Width : 13.8 ferrous plating, etc.
X1 : numbering up

Cage intended to guide outer ring,
Inscribed circle diameter :П20 eventually surface- treated by non-
ferrous plating, etc.
GPK20ʷ 26 ʷ13.8X Roller set outer diameter :П26
Width :13.8 Can be applied to a crank of integral
structure.

Inscribed circle diameter :П10
Cage intended to guide outer ring,
Roller set outer diameter :П14 eventually surface- treated by non-
KMJ10ʷ14ʷ8.8̨
Width :8.8 ferrous plating, etc.
S : welded type

Inscribed circle diameter :П14
KBK14ʷ18ʷ17 Roller set outer diameter :П18 Type KBK is intended to guide inner
Width : 17 ring, which of the guide surface is
designed as long as possible to
thereby reduce the surface pressure.
In addition, the roller length is so
designed as to be maximum against
the width of connecting rod, for high
load capacity. On the other hand,
Inscribed circle diameter :П8
Type VŋŋS intended for outer ring
Roller set outer diameter :П11 guide needs a guide along the bore
̠V8ʷ11ʷ8SV4 Width : 8 surface of connecting rod.
S : welded type
V4 : numbering up

B-23