ClassID:

39071

B21H5/025 - CPC Classification

Classification description:

Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls Internally geared wheels

Recent Application in this class:
#1
20200197999
2020-06-25

Method and forming system for producing a drum-shaped gear part

#2
20190022735
2019-01-24

Method for producing a gas or liquid tank

#3
20170028454
2017-02-02

Method for roll-forming disk carriers or the like and the associated profile roller set

#4
20160256915
2016-09-08

R-θ table apparatus and processing apparatus of internal thread

#5
20160245388
2016-08-25

Internal gear and manufacturing method thereof with die

#6
20160175917
2016-06-23

Apparatus for smoothing a toothing system and production process

#7
20150251233
2015-09-10

Method and device for producing an internally and externally toothed pot-shaped sheet metal part using a forming head

#8
20150184698
2015-07-02

Method for producing a connecting element for transmitting rotational movements

#9
20140366601
2014-12-18

Flow formed drum with a retention ring and a substantially burr free tooth profile

#10
20120177879
2012-07-12

Flow formed drum with a retention ring and a substantially burr free tooth profile

#11
20110083485
2011-04-14

Roll forming method for producing longitudinally toothed profiled bodies in pot-shaped cylindrical workpieces

#12
20110079066
2011-04-07

Method for producing an internally or externally toothed cup-shaped sheet material component and corresponding device

#13
20090126440
2009-05-21

Device and method for producing profiled bodies

#14
20080282544
2008-11-20

Powder metal internal gear rolling process

#15
20080105021
2008-05-08

Method of forming a gear

#16
20070289349
2007-12-20

Method for producing longitudinal grooves in cylindrical workpieces

#17
20070163320
2007-07-19

Device and method for producing tooth-like profiled sections on workpieces

#18
20060272375
2006-12-07

Method for producing an inner contour with an internal arbor acting on the inside wall of a workpiece

#19
20060144111
2006-07-06

Method of fabricating component having internal teeth and rolling machine thereof

#20
20050166654
2005-08-04

Method of forming internal gear, and internal gear