Page 203 - needle bearings
P. 203
Complex bearings
NTN
Bearing components Handling characteristic Features
Inscribed circle diameter
(shaft dia.) : П20
Radial bearing : Needle roller type
Iron cage ˚ Can be applied to high speed running under light axial load,
Thrust bearing : Ball type Separable thrust plate due to use of ball type thrust bearing.
Resin cage Without dust-proof cover
Dust-proof cover : without
Thrust plate : Separable
Inscribed circle diameter
(shaft dia.) : П20
Radial bearing : Needle roller type This type is identical to NKZ, but its thrust bearing is
Iron cage ˓ provided with dust-proof cover to prevent grease scattering.
Thrust bearing : Ball type Integral thrust plate Furthermore, the handling characteristic is good because
Resin cage
Dust-proof cover : with With dust-proof cover the dust-proof cover makes the thrust plate non-separable
Thrust plate : Non-separable, integral.
integral type
Inscribed circle diameter
(shaft dia.) : П20
Radial bearing : Needle roller type ˚
Iron cage Due to the use of needle roller bearing as its thrust bearing,
Thrust bearing : Ball type Separable thrust plate this type can support greater axial load than NKX.
Resin cage Without dust-proof cover
Dust-proof cover : without
Thrust plate : Separable
Inscribed circle diameter
(shaft dia.) : П20 This type is identical to NKXR, but its thrust bearing is
Radial bearing : Needle roller type
Iron cage ˓ provided with dust-proof cover to prevent grease scattering.
Thrust bearing : Ball type Integral thrust plate Furthermore, the handling characteristic is good because
Resin cage With dust-proof cover the dust-proof cover makes the thrust plate non-separable
Dust-proof cover : with and integral.
Thrust plate : Non-separable,
integral type
Inscribed circle diameter This type is composed of needle roller bearing and angular
(shaft dia.) : П20 ˕ bearing which were integrated into one unit. The angular
Radial bearing : Needle roller type Integral angular bearing bearing supports axial load. Hence, this type can support
Thrust bearing : Angular type Inner ring separable one-way axial load only. Best-suited to high speed and light
load application.
Inscribed circle diameter
(shaft dia.) : П20 This type is composed of needle roller bearing and
˓
Radial bearing : Needle roller type three-point contact angular bearing which were integrated
Double inner ring type
Outer ring with rib into one unit. Unlike KN1A, this type can support
Inner ring separable
Thrust bearing : Three-point contact bi-directional axial load.
angular type
Inscribed circle diameter
This type is a special-purposed bearing to support a
(shaft dia.) : П20
precision ball screw. This type uses the side face of the
Outer ring outer diameter : 52 ˚
radial bearing as the raceway surface of thrust bearing.
Radial bearing : Needle roller type Separable
This can support axial load from both directions.
Thrust bearing : Needle roller type
Inscribed circle diameter
This type is a special-purposed bearing to support a
(shaft dia.) : П20
Outer ring outer diameter : 62 ˚ precision ball screw. This can support bi-directional axial
Radial bearing : Needle roller type Separable load. This type is identical to AXN, but its axial load capacity
is greater.
Thrust bearing : Cylindrical roller type
B-141