ClassID:

39046

B21H1/12 - CPC Classification

Classification description:

Making articles shaped as bodies of revolution rings of restricted axial length rings for ball or roller bearings

Recent Application in this class:
#1
20240117841
2024-04-11

Method for increasing the load-bearing capacity, and rolling device for hard rolling a surface-hardened rolling-bearing raceway

#2
20230101959
2023-03-30

Ring rolling machine with device for ring manipulation

#3
20220412407
2022-12-29

Method for increasing the load-bearing capacity, and rolling device for hard rolling a surface-hardened rolling-bearing raceway

#4
20200261962
2020-08-20

Radial/axial ring rolling mill for rolling a ring

#5
20190201969
2019-07-04

Ring-rolling machine and method for lifting and lowering the mandrel roll of a ring-rolling machine

#6
20180272420
2018-09-27

Method for processing precision forging of bearing ring

#7
20180117663
2018-05-03

Ring rolling device with axially fixed rolling bearings

#8
20170363149
2017-12-21

Method for producing a composite rolling bearing

#9
20170274443
2017-09-28

Method for manufacturing ring-shaped member and manufacturing apparatus for same

#10
20170225222
2017-08-10

Ring-rolling machine and method for lifting and lowering the mandrel roll of a ring-rolling machine

#11
20170173658
2017-06-22

Method for manufacturing ring-shaped member

#12
20170008066
2017-01-12

Ring rolling device

#13
20160368041
2016-12-22

Rolling Processing Device and Rolling Processing Method

#14
20160288273
2016-10-06

Method for manufacturing annular member

#15
20160082553
2016-03-24

Combined ring rolling method for spherical valve body

#16
20140208593
2014-07-31

Method for producing a composite rolling bearing

#17
20110241416
2011-10-06

ROTARY FORMING METHOD FOR PRODUCING A RIVET FLANGE

#18
20100316323
2010-12-16

Wheel bearing device with a clearance formed between the inner race and the hub wheel

#19
20100239202
2010-09-23

DOUBLE-ROW ANGULAR BEARING, BEARING DEVICE FOR WHEEL, METHOD OF PRODUCING OUTER RACE, AND METHOD OF PRODUCING INNER RACE

#20
20100101091
2010-04-29

Manufacturing method for bearing outer ring

#21
20090139092
2009-06-04

METHOD AND MANUFACTURING OF BALL BEARING RINGS

#22
20090120152
2009-05-14

RING ROLLING FROM METAL BLANKS

#23
20080196472
2008-08-21

Apparatus and method for forming inside surface of tube stock

#24
20080089631
2008-04-17

Raceway Ring for Radial Ball Bearing and Manufacturing Method Thereof, and Manufacturing Method of High Accurate Ring and Manufacturing Apparatus Thereof

#25
20060236545
2006-10-26

Method for producing internally or externally profiled rings and arrangement therefor

#26
20060196033
2006-09-07

Annular composite workpieces and a cold-rolling method for producing said workpieces