industrial equipment
Products for Steel Production Equipment
Drive shafts for steel production/ industrial equipment
CAT.NO.B2021E
MN../45105]f/f2,glbb 0
0./4-./-04 /18/4
CONTENTS
Drive shafts for steel production/ industrial equipment
■ Introduction to drive shafts )unctions and conğJuration of Sarts Position of each series of universal joints ■ ConğJurations of drive shafts ■ 0easures to iPSrove service life and strenJth $SSlication of different diaPeter rollers for cross EearinJ %all EurnishinJ on cross shaft TherPal sSra\inJ coat of tunJsten carEide :C on EearinJ cuS Ne\ $SSlication of forP rollinJ to EearinJ set Eolt ■ 0aintenance and insSection Pethod of drive shaft ■ Cases of failures ■ Technical data General characteristics of universal joint Drive shaft selection %alance Tualit\ of drive shaft ■ CoPSosition of drive shaft nuPEers ■ SSeciğcations D series U series T series KF/EZ series KF/EZ series ĠanJe couSlinJ Zith c\lindrical Eore TorTue Zrench set for Eolt tiJhteninJ ■ Product introduction Drive shaft Zith roll Shase adjustPent device for Ear and rod Pill +\Ser couSlinJ ■ $ttached taEles 5ecoPPended tiJhteninJ torTue for ĠanJe Eolts ShaSe and diPensions of Sarallel Ne\ and Ne\Za\ -IS % ■ Drive shaft selection sheet ■ +\Ser couSlinJ selection sheet
Preface ThrouJhout the PanufacturinJ industr\ the Sursuit of Jreater SoZer outSut at hiJher efğcienc\ is a Sriorit\ Under such circuPstances hiJhl\ soShisticated and econoPical drive shafts that ğt in a liPited sSace are in Jreat dePand for use in various eTuiSPent and Pachines Drive shaft lineuS is certain to satisf\ \our reTuirePents in various aSSlications includinJ iron PanufacturinJ Pachines rollinJ Pills construction Pachines and rollinJ stocN :e thanN \ou in advance for \our suSSort of our drive shafts
U series
D series EZ series
01
03 04 05 07 07 08 08 09 11 13 15 17 18 19 21 23 25 27 28 29 31 35 36 37 38
KF series T series
02
Introduction to drive shafts Position of each series of universal joints Functions A drive shaft is a revolving shaft used to transmit the
Torque capacity
power of a motor to a machine. Since it is installed in a limited space, the axes are seldom aligned. However, by using a universal joint, the input axis and the V\[W\[ H_PZ JHU IL ÅL_PIS` JVUULJ[LK L]LU PU H SPTP[LK space, enabling smooth torque transmission. Each universal joint has four rolling bearings (cross & bearing), realizing low friction and minimizing torque losses.
Plate mills Hot/cold strip mills Rod/wire rod mills, etc.
D/U/T series General industrial machines, etc.
KF/EZ series Universal joint swing diameter
Universal joint &onğguration of parts 1) Cross & bearings The cross & bearings are the most critical components of a drive shaft. A cross & bearing has a cross-shaped shaft and four rolling bearings that individually support each end of the shaft. 2) Bearing set bolt Used to connect the cross bearing and its mating part. 3) Spline sleeve/shaft There are a spline hole and shaft and the attaching length is adjustable. 4) Spline cover Used to improve the dustproof and waterproof properties if the ambient environment is not good. 5) Flange yoke ;OLÅHUNL`VRLPZJVTTVUS`\ZLK[VJVUULJ[HKYP]L\UP[
5) Flange yoke
2) Bearing set bolt
(such as a motor). A variety of joints are available to suit ZWLJPÄJHSS`KLZPYLKHWWSPJH[PVUZ
1) Cross & bearing
4) Spline cover
6) Fitting Used mainly for connection with the machine and the motor.
6) Fitting
3) Spline sleeve/shaft
Various types of coupling arrangements are provided according to the application.
03
04
Conğgurations of drive shafts
+YP]LZOHM[ZJHUILJSHZZPÄLKPU[V[^V[`WLZPUJVUÄN\YH[PVUKLWLUKPUNVU[OLZOHWLVM[OLJYVZZ ILHYPUNZ^OPJOZLY]LHZ\UP]LYZHS QVPU[Z!ISVJR[`WLHUKYV\UK[`WL;OLMLH[\YLZHUK[`WPJHSJVUÄN\YH[PVUVMPUKP]PK\HS[`WLZHYLZOV^UILSV^
+L HWWS` NYHKL . [V OPNO ZWLLK KYP]L ZOHM[Z \USLZZ V[OLY^PZLZWLJPÄLK
The balance quality is expressed by the following equation: Balance quality = or Balance quality = /9.55 where !(TV\U[VMZWLJPÄJ\UIHSHUJL(mm) This amount is the quotient of the static unbalance
Correction of the unbalance of drive shafts
of a rigid rotor by the rotor mass. The amount is equal to the deviation of the center of the rotor
JTEKT corrects the unbalance of drive shafts to the optimal
mass from the center line of the shaft.
]HS\L I` [OL [^V WSHUL IHSHUJPUN TL[OVK \ZPUN [OL SH[LZ[
: Maximum service angular velocity of the rotor (rad/s)
balance system.
: Rotational speed (min-1)
;VJVYYLJ[[OLIHSHUJLVMHKYP]LZOHM[P[PZJYP[PJHS[VJVYYLJ[ the balance between two planes each near the two individuHS\UP]LYZHSQVPU[ZPUZ[LHKVMI`[OLVULWSHULIHSHUJPUNHZ used to balance car wheels. ,ZWLJPHSS` PU [OL JHZL VM H SVUN KYP]L ZOHM[ [OPZ [^V WSHUL balancing method is the only way to acquire good results.
Table 1 Recommended balance quality grades (excerpt from JIS B 0905) <WWLYSPTP[]HS\LVM Balance balance quality quality grade
Recommended applicable machines *HY^OLLSZ^OLLSYPTZ^OLLSZL[ZHUKKYP]LZOHM[Z Crankshaft systems of elastically mounted high speed four stroke engines (gasoline or diesel) with six or more cylinders *YHURZOHM[Z`Z[LTZVM[OLLUNPULZVMH\[VTVIPSLZ[Y\JRZHUKYVSSPUNZ[VJR Drive shafts with special requirements (propeller shafts and diesel shafts) Components of crushing machines Components of agricultural machines *VTWVULU[ZVM[OLLUNPULZVMH\[VTVIPSLZ[Y\JRZHUKYVSSPUNZ[VJRNHZVSPULVYKPLZLS Crankshaft systems with six or more cylinders with special requirements Devices of processing plants Ship engine turbine gears (for merchant ships) Centrifugal drums Papermaking rolls and printing rolls Fans Assembled aerial gas turbine rollers Flywheels Pump impellers Components of machine tools and general industrial machines 4LKP\T VY SHYNL LSLJ[YPJ HYTH[\YLZ VM LSLJ[YPJ TV[VYZ OH]PUN H[ SLHZ[ TT PU [OL ZOHM[ JLU[LY height) without special requirements Small electric armatures used in vibration insensitive applications and/or provided with vibration insulation (mainly mass produced models) Components of engines with special requirements
17
MN../45105]മಬ,glbb /5
0./4-./-04 /180.
Composition of drive shaft numbers
(1) Block type
(2) Round type ① KF series
Model No.
D
5 6
1 0 0
1 2 3
4
C M
2
F
180
001
5
CC
Fitting code *VUÄN\YH[PVUJVKL
Fitting code
Design serial No.
*VUÄN\YH[PVUJVKL Design serial No.
Swing diameter No.
Swing diameter (unit: mm) Series code
BRG No.
Number of cross bearings Series code
(3) Type with different model numbers on the right and left
② EZ series
T60120 D56100 234 (Model No.)
(Model No.)
EZ
26
045
001
3
CC
Design serial No. The two model numbers are written side by side If the rotation diameters HYL [OL ZHTL [OL TVKLS numbers are written in VYKLYVM;+HUK< If the rotation diameters HYL KPMMLYLU[ [OL TVKLS number with larger rotation KPHTL[LYPZ^YP[[LUÄYZ[
Fitting code *VUÄN\YH[PVUJVKL Design serial No. Swing diameter No. BRG No. Series code
Supplementary explanation of items ■ Series code D : D series
Drive shafts for steel production/ industrial equipment
CAT.NO.B2021E
MN../45105]f/f2,glbb 0
0./4-./-04 /18/4
CONTENTS
Drive shafts for steel production/ industrial equipment
■ Introduction to drive shafts )unctions and conğJuration of Sarts Position of each series of universal joints ■ ConğJurations of drive shafts ■ 0easures to iPSrove service life and strenJth $SSlication of different diaPeter rollers for cross EearinJ %all EurnishinJ on cross shaft TherPal sSra\inJ coat of tunJsten carEide :C on EearinJ cuS Ne\ $SSlication of forP rollinJ to EearinJ set Eolt ■ 0aintenance and insSection Pethod of drive shaft ■ Cases of failures ■ Technical data General characteristics of universal joint Drive shaft selection %alance Tualit\ of drive shaft ■ CoPSosition of drive shaft nuPEers ■ SSeciğcations D series U series T series KF/EZ series KF/EZ series ĠanJe couSlinJ Zith c\lindrical Eore TorTue Zrench set for Eolt tiJhteninJ ■ Product introduction Drive shaft Zith roll Shase adjustPent device for Ear and rod Pill +\Ser couSlinJ ■ $ttached taEles 5ecoPPended tiJhteninJ torTue for ĠanJe Eolts ShaSe and diPensions of Sarallel Ne\ and Ne\Za\ -IS % ■ Drive shaft selection sheet ■ +\Ser couSlinJ selection sheet
Preface ThrouJhout the PanufacturinJ industr\ the Sursuit of Jreater SoZer outSut at hiJher efğcienc\ is a Sriorit\ Under such circuPstances hiJhl\ soShisticated and econoPical drive shafts that ğt in a liPited sSace are in Jreat dePand for use in various eTuiSPent and Pachines Drive shaft lineuS is certain to satisf\ \our reTuirePents in various aSSlications includinJ iron PanufacturinJ Pachines rollinJ Pills construction Pachines and rollinJ stocN :e thanN \ou in advance for \our suSSort of our drive shafts
U series
D series EZ series
01
03 04 05 07 07 08 08 09 11 13 15 17 18 19 21 23 25 27 28 29 31 35 36 37 38
KF series T series
02
Introduction to drive shafts Position of each series of universal joints Functions A drive shaft is a revolving shaft used to transmit the
Torque capacity
power of a motor to a machine. Since it is installed in a limited space, the axes are seldom aligned. However, by using a universal joint, the input axis and the V\[W\[ H_PZ JHU IL ÅL_PIS` JVUULJ[LK L]LU PU H SPTP[LK space, enabling smooth torque transmission. Each universal joint has four rolling bearings (cross & bearing), realizing low friction and minimizing torque losses.
Plate mills Hot/cold strip mills Rod/wire rod mills, etc.
D/U/T series General industrial machines, etc.
KF/EZ series Universal joint swing diameter
Universal joint &onğguration of parts 1) Cross & bearings The cross & bearings are the most critical components of a drive shaft. A cross & bearing has a cross-shaped shaft and four rolling bearings that individually support each end of the shaft. 2) Bearing set bolt Used to connect the cross bearing and its mating part. 3) Spline sleeve/shaft There are a spline hole and shaft and the attaching length is adjustable. 4) Spline cover Used to improve the dustproof and waterproof properties if the ambient environment is not good. 5) Flange yoke ;OLÅHUNL`VRLPZJVTTVUS`\ZLK[VJVUULJ[HKYP]L\UP[
5) Flange yoke
2) Bearing set bolt
(such as a motor). A variety of joints are available to suit ZWLJPÄJHSS`KLZPYLKHWWSPJH[PVUZ
1) Cross & bearing
4) Spline cover
6) Fitting Used mainly for connection with the machine and the motor.
6) Fitting
3) Spline sleeve/shaft
Various types of coupling arrangements are provided according to the application.
03
04
Conğgurations of drive shafts
+YP]LZOHM[ZJHUILJSHZZPÄLKPU[V[^V[`WLZPUJVUÄN\YH[PVUKLWLUKPUNVU[OLZOHWLVM[OLJYVZZ ILHYPUNZ^OPJOZLY]LHZ\UP]LYZHS QVPU[Z!ISVJR[`WLHUKYV\UK[`WL;OLMLH[\YLZHUK[`WPJHSJVUÄN\YH[PVUVMPUKP]PK\HS[`WLZHYLZOV^UILSV^
+L HWWS` NYHKL . [V OPNO ZWLLK KYP]L ZOHM[Z \USLZZ V[OLY^PZLZWLJPÄLK
The balance quality is expressed by the following equation: Balance quality = or Balance quality = /9.55 where !(TV\U[VMZWLJPÄJ\UIHSHUJL(mm) This amount is the quotient of the static unbalance
Correction of the unbalance of drive shafts
of a rigid rotor by the rotor mass. The amount is equal to the deviation of the center of the rotor
JTEKT corrects the unbalance of drive shafts to the optimal
mass from the center line of the shaft.
]HS\L I` [OL [^V WSHUL IHSHUJPUN TL[OVK \ZPUN [OL SH[LZ[
: Maximum service angular velocity of the rotor (rad/s)
balance system.
: Rotational speed (min-1)
;VJVYYLJ[[OLIHSHUJLVMHKYP]LZOHM[P[PZJYP[PJHS[VJVYYLJ[ the balance between two planes each near the two individuHS\UP]LYZHSQVPU[ZPUZ[LHKVMI`[OLVULWSHULIHSHUJPUNHZ used to balance car wheels. ,ZWLJPHSS` PU [OL JHZL VM H SVUN KYP]L ZOHM[ [OPZ [^V WSHUL balancing method is the only way to acquire good results.
Table 1 Recommended balance quality grades (excerpt from JIS B 0905) <WWLYSPTP[]HS\LVM Balance balance quality quality grade
Recommended applicable machines *HY^OLLSZ^OLLSYPTZ^OLLSZL[ZHUKKYP]LZOHM[Z Crankshaft systems of elastically mounted high speed four stroke engines (gasoline or diesel) with six or more cylinders *YHURZOHM[Z`Z[LTZVM[OLLUNPULZVMH\[VTVIPSLZ[Y\JRZHUKYVSSPUNZ[VJR Drive shafts with special requirements (propeller shafts and diesel shafts) Components of crushing machines Components of agricultural machines *VTWVULU[ZVM[OLLUNPULZVMH\[VTVIPSLZ[Y\JRZHUKYVSSPUNZ[VJRNHZVSPULVYKPLZLS Crankshaft systems with six or more cylinders with special requirements Devices of processing plants Ship engine turbine gears (for merchant ships) Centrifugal drums Papermaking rolls and printing rolls Fans Assembled aerial gas turbine rollers Flywheels Pump impellers Components of machine tools and general industrial machines 4LKP\T VY SHYNL LSLJ[YPJ HYTH[\YLZ VM LSLJ[YPJ TV[VYZ OH]PUN H[ SLHZ[ TT PU [OL ZOHM[ JLU[LY height) without special requirements Small electric armatures used in vibration insensitive applications and/or provided with vibration insulation (mainly mass produced models) Components of engines with special requirements
17
MN../45105]മಬ,glbb /5
0./4-./-04 /180.
Composition of drive shaft numbers
(1) Block type
(2) Round type ① KF series
Model No.
D
5 6
1 0 0
1 2 3
4
C M
2
F
180
001
5
CC
Fitting code *VUÄN\YH[PVUJVKL
Fitting code
Design serial No.
*VUÄN\YH[PVUJVKL Design serial No.
Swing diameter No.
Swing diameter (unit: mm) Series code
BRG No.
Number of cross bearings Series code
(3) Type with different model numbers on the right and left
② EZ series
T60120 D56100 234 (Model No.)
(Model No.)
EZ
26
045
001
3
CC
Design serial No. The two model numbers are written side by side If the rotation diameters HYL [OL ZHTL [OL TVKLS numbers are written in VYKLYVM;+HUK< If the rotation diameters HYL KPMMLYLU[ [OL TVKLS number with larger rotation KPHTL[LYPZ^YP[[LUÄYZ[
Fitting code *VUÄN\YH[PVUJVKL Design serial No. Swing diameter No. BRG No. Series code
Supplementary explanation of items ■ Series code D : D series
