Example bearing arrangements
Example Bearing arrangement Recommended application Application example
Fixed side Free side
Ex. 1
Suitable for high-speed operation; used for various types of applications.
Not recommened for applications that have center displacement between bearings or shaft deflection.
Medium size motors, air blowers.
Ex. 2
More suitable than Ex. 1 for operation under heavy load or impact load. Suitable for high-speed operation.
Due to separability, suitable for applications requiring interference of both inner and outer rings.
Not recommended for applications that center dislacement between bearings or shaft deflection.
Traction motors for railway rolling stock.
Ex. 3
Recommended for applications under heavier or greater impact load than those in Ex.2.
This arrangement requires high rigidity from fixed side bearings mounted back to back, with preload provided.
Shaft and housing of accurate dimensions should be selected and mounted properly.
Steel mamfacturing table rollers, lathe spindles.
Ex. 4
This is recommended for operation at high speed or axial load lighter than in Ex.3.
This is recommended for applications requiring interference of both inner and outer rings.
Some applications use double-row angular contact ball bearings on fixed side instead of matched pair angular contact ball bearings.
Motors
Ex. 5
This is recommended for operations under relatively small axial load.
This is recommended for applications requiring interference of both inner and outer rings.
Paper manfacturing calender rollers, diesel locomotive axle journals.
Ex. 6
This is reconnended for operations at speed and heavy radial load, as normal axial load.
When deep groove ball bearings are used, clearance must be provided between bearing outside diameter and housing, to prevent application of radial load.
Diesel locomotive transmissions.
Ex. 7
This arrangement is most widely employed.
This arrangement can accommodate partial axial load as well as radial load.
Pumps, automobile transmissions.
Ex. 8
This is recommended for operations with relatively heavy axial load in both directions.
Some applications use matched pair angular contact ball bearings on fixed side instead of double-row angular contact ball bearings.
Worm gear speed reducers.
Ex. 9
This is the optimum arrangement for applications with possible mouting erroes or shaft deflection.
Bearings in this arrangement can accommodate partial axial load, as well as heavy radial load.
Steel manufacturing table roller speed reducers, overhead crane wheels.
Ex. 10
This is optimum arrangement for applications with possible mounting errors or shaft deflecton.
Ease of mounting and dismounting, ensured by use of adaptor, makes this arangement suitable for long shafts which are neither stepped nor threaded.
This arrangement is not recommended for applications requiring axial load capabitity.
General industrial equipment counter shafts.
Ex. 11
This is the optimum arrangement for applications with possible mounting errors or shaft deflection.
Thisa is recommended for operations under impact load or radial load heavier than that in Ex. 10.
This arrangement can accommodate partial axial load as well as radial load.
Steel manufacturing table rollers.
Arrangement in which fixed and
free sides are not distinguished
Recommended application Application example
Ex. 12
This arrangment is most popular when applied to small equipment operating under light load.
When used with ligh preloading, thickness-adjusted shim or spring is mounted on one side of outer ring.
Small motors, small speed reducers, small pumps.
Ex. 13
Back-to-back
Face-to-face
This is suitable for applications in which rigidity is enhanced by preloading.
This is frequently employed in applications requiring high speed operation under relatively large axial load.
Back-to-back arrangement is suitable for applications in which moment is suitable for applications in which moment load affects operation.
When preloading is required, care should be taken in preload adjustment.
Machine tool spindles.
Example Arrangement in which fixed and
free sides are not distinguished
Recommended application Application example
Ex. 14
Back-to-back
Face-to-face
This is recommended for operaton under impact load or axial load heavier than in Ex.13.
This is suitable for applications in which rigidity is enhanced by preloading.
Back-to back arrangement is suitable for applications in which moment load affects operation.
When interference is required between inner ring and shaft, face-to-face arrangement simplifies mounting.
This arrangement is effective for applications in which mounting error is possible.
When preloading is required, care should be taken in preload adjustment.
Speesd reducers, automoobile wheels.
Ex. 15
This is recommended for appliactions requiring high speed and high accuracy of rotation under light load.
This is suitable for applications in which rigidity is enhanced by preloading.
Tandem arrangement and face-to-face arrangement are possible, as is back-to -back arrangement.
Machinre tool spindles.
Ex. 16
This arrangement provides resistance against heavy radial and impact loads.
This is applicable when both inner and outer rings require interference.
Care should be taken not to reduce axial internal clearance a cirtical amount during operation.
Construction equipment final drive.
Application to vertical shafts Recommended application Application example
Ex. 17
  Free
side
Free
side
This arrangement, using matched pair angular contact ball bearings on the fixed side and cylindrical roller bearings on the free side, is suitable for high speed operation.
Vertcal motors, vertical pumps.
Ex. 18
  Free
side
Free
side
This is recommended for operation at low speed and heavy load, in which axial load is heavier than radial load.
Due to self-aligning capability,this is suitable for applications in which shaft runout or deflection occurs.
Crane center shafts, vertical pumps.
Copyright DYS Corporation All Rights Reserved. 浙ICP备11004801号 您是第111615位访问者!