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KHK Worm Gears Catalogue - 2 / 56 Pages

lir Worm Gear Pair
Characteristics
The simplest way to obtain a large speed reduction with high torque in a compact space is with worm gear drives. KHK stock worms and worm wheels are available in modules 0.5 to 6 and in speed ratios of 1/10 to 1/120, made in a variety of materials and styles. We also offer stock duplex worms and worm wheels with which you can obtain a very low backlash, high rotational precision system. The following table lists the main features for easy selection.
Type
Catalog No.
Module
No. of threads or reduction ratio
Material
( ) JIS
Heat treatment
sfSe
Precision
KHKW001
NOTE00!
Features
Duplex Worms & Worm Wheels
Worm
KWGDL
2-4
Single thread
SCM440
Thermal refined, gear teeth induction hardened
Ground
1
Duplex lead worms have slightly different leads and lead angles on the opposite face of the gear tooth. A range of backlash can be obtained by moving the worm axially. Worms have a high precision ground finish while worm wheels are made of abrasion-resistant Aluminum Bronze, making these the top-grade products. Worms come in bore type and shaft type styles.
Worm
KWGDLS
1.5-4
Single thread
SCM440
Thermal refined, gear teeth
induction hardened
Ground
1
Worm Wheel
AGDL
1.5-4
20-60
CAC702 (AIBC2)
Cut
1
Worms & Worm Gears
Worm
KWG
0.5-6
Single thread -Double thread
SCM440
Thermal refined, gear teeth
induction hardened
Ground
2
Use of worm shafts eliminate the need to attach worms to shafts. Machining of bearing journal can be performed on the shafts. KWG2 or larger worm shafts have smaller pitch diameters than the comparable SWG worms, which allow more compact design with higher efficiency.
Worm Wheel
AG NOTE 1
0.5-1.5
10-60
CAC702 (AIBC2)
ח
Cut
2
Worm Wheel
AGF note 1
2-6
10-60
CAC702 (AIBC2)
Cut
2
Worm
SWG
1-6
Single thread -Triple thread
S45C
hardened
Ground
2
Superior strength and wear-resistance lead to compact
designs with these gears. They have the same center distances as the more popular SW/CG series which permit substitution of these in place of SW/CG series for more demanding applications.
Worm Wheel
AG NOTE 1
1-6
10-60
CAC702 (AIBC2)
ח
Cut
2
Worm
SW
0.5-6
Single thread -Double thread
S45C
(TCread roM
4
A large selection is available in these economical and most popular series. Modules range from 0.5 to 6 and speed ratios from 1/10 to 1/120. Worm wheels are also available in lightweight MC nylon which can be used without lubrication.
Worm
SUW
0.5-3
Single thread -Double thread
SUS303
ח
Cut
4
Worm Wheel
CG
1 -6
10-120
FC200
Cut
4
Worm Wheel
BG
0.8-6
10-60
CAC502 (PBC2)
ח
Cut
4
Worm Wheel
PG
1-3
10-50
MC901
Cut
5
Worm Wheel
DG
0.5-0.8
10-60
Polyacetal
ח
Cut
5
[NOTE 1] The material of cast hubs for AGF and AG worm wheels is FC200(Cast Iron). AG worm wheels mate primarily with SWG worms. But, for
Modules 0.8 or smaller, AG worm wheels mate with KWG worms. [NOTE 2] KHK stock worms and worm wheels are produced to KHK's own precision grades. See the "Precision of Worms and Worm Gears" in
the "Selection Hints" section.
Our precision gear cutting technology enables acceleration and noise reduction
Setting the proper tooth contact and the backlash is essential for using worm gears. Use KHK stock worm gears for safe, reliable use.
Worm Grinding Machine by Klingelnberg Worm gear testing machine by Klingelnberg
KHK Worm Gears Catalogue
  1. P. 1

    Worm Gear Pair Special Characteristics, Points of Caution in Selecting and Using Worms, Worm Wheels Page 412 KWGDL-KWGDLS Duplex Worms AGDL Duplex...
  2. P. 2

  3. P. 3

    KHK Technical information ■ Efficiency of SWG/AG Worm Gear Pair (%) 1. Efficiency of Worm Gear Pair The efficiency of power transmission...
  4. P. 4

    IIT Worm Gear Pair Selection Hints Please select the most suitable products by carefully considering the characteristics of items and contents...
  5. P. 5

    KHK Technical Information 3. Selecting Worms and Worm Wheels by Precision The precision standards of KHK stock worms and worm wheels are...
  6. P. 6

    IIT Worm Gear Pair Application Hints In order to use KHK stock worms and worm wheels safely, carefully read the Application Hints before...
  7. P. 7

    KHK echnical information3. Verifying the orientation of assemblyHow well the worms and worm wheels are assembled has large effects on the friction of the...
  8. P. 8

  9. P. 9

  10. P. 10

  11. P. 20

  12. P. 30

  13. P. 40

  14. P. 50

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