Spur Gears
Helical Gears
Internal Gears
Racks
CP Racks & Pinion
Miter Gears
Bevel Gears
Screw Gears
Worm Gears
Gearbox
Other Products
Duplex Worms,
Worm Gears (KWGDL)
High-precision duplex worm gears with superior strength. A range of backlash values can be obtained by moving the worm axially.
[NOTE1] Since the load is bidirectional, the allowable root bending stress σFlim, calculated from JGMA 401-01, is set to 2/3 of the value
Duplex Worms,
Worm Gears (KWGDLS)
Duplex worm gears with a shaft, excellent in accuracy and strength. A range of backlash values can be obtained by moving the worm axially.
[NOTE1] Since the load is bidirectional, the allowable root bending stress σFlim, calculated from JGMA 401-01, is set to 2/3 of the value
Duplex Worms,
Worm Gears (AGDL)
Duplex worm gears made of aluminum bronze, excellent in wear-resistance. The pitch accuracy is first grade.
Ground Worm Shafts,
Worm Gears (KWG)
Grounded finished worms with a shaft, including tooth surface quenching treatment. Allows compact design due to having small reference diameters.
[NOTE1] Since the load is bidirectional, the allowable root bending stress σFlim, calculated from JGMA 401-01, is set to 2/3 of the value
Ground Worm Shafts,
Worm Gears (AG)
Made of aluminum bronze, have excellent wear-resistance. Wide selection is available for this item. Completed products for J series are also available.
Ground Worm Shafts,
Worm Gears (AG)
Made of aluminum bronze, have excellent wear-resistance. Wide selection is available for this item. Completed products for J series are also available.
Ground Worm Shafts,
Worm Gears (AGF)
Made of aluminum bronze, has excellent wear-resistance. Allows compact design.
Ground Worms,
Worm Gears (SWG)
Reasonably priced ground worms. Ready-to-use finished products from the J series, are also available.
[NOTE1] Since the load is bidirectional, the allowable root bending stress σFlim, calculated from JGMA 401-01, is set to 2/3 of the value
Steel Worms
(SW)
Economical, commonly used worms that have broad utility. Ready-to-use finished products from the J series are also available.
[NOTE1] Since the load is bidirectional, the allowable root bending stress σFlim, calculated from JGMA 401-01, is set to 2/3 of the value
Bronze Worm Gears
(BG)
Phosphorous bronze worm wheels have excellent wear resistance. Interchangeable with CG Worm Wheels, and enhances strength. Completed products for J series are also available.
Worms,
Gray Iron Worm Gears (CG)
Economical, commonly used worm wheels that have broad utility. Available with a large selection of modules and number of teeth. Completed products for J series are also available.
Stainless Steel Worms
(SUW)
Rust-resistant worms made of stainless steel suitable for mating with DS or PG worm wheels. Finished products for the J series are also available.
[NOTE1] Since the load is bidirectional, the allowable root bending stress σFlim, calculated from JGMA 401-01, is set to 2/3 of the value
Worm Gears
(DG)
Fine pitch worm wheels made of polyacetal, a stable plastic material.
Worms,
Plastic Worm Gears (PG)
Light weight and strong MC Nylon worm wheels. Suitable for use in food machinery, and can be used without lubricant. Completed products for J series are also available.
KHK Stock Gears [Worms]
List
Characteristics
   precaution    
 
 KHK Technical Information

Type Catalog
No.
Module No. of threads
or
speed ratio
Material
( ) indicates
old JIS designation
Heat treatment Tooth
surface
finish
Precision
KHK W 001
KHK W 002
NOTE2
Features
Duplex
Worms
&
Worm
Wheels
Worm KWGDL 2~4 Single thread SCM440 Thermal refining and teeth induction hardened Ground 1 High-precision duplex worm gears with superior strength. A range of backlash values can be obtained by moving the worm axially.
KWGDLS 1.5~4 Single thread SCM440 Thermal refining and teeth induction hardened Ground 1 Duplex worm gears with a shaft, excellent in accuracy and strength. A range of backlash values can be obtained by moving the worm axially.
Worm
Wheel
AGDL 1.5~4 20~60 CAC702 (AlBC2) Hobbed 1 Duplex worm gears made of aluminum bronze, excellent in wear-resistance. The pitch accuracy is first grade.
Worm
Gears
Worm KWG 0.5~6 Single thread ~Double thread SCM440 Thermal refining and teeth induction hardened Ground 2 Grounded finished worms with a shaft, including tooth surface quenching treatment. Allows compact design due to having small reference diameters.
Worm
Wheel
AG
NOTE 1
0.5~1.5 10~60 CAC702 (AlBC2) Hobbed 2 Made of aluminum bronze, have excellent wear-resistance. Wide selection is available for this item.
AGF
NOTE 1
2~6 10~60 CAC702 (AlBC2) Hobbed 2 Made of aluminum bronze, has excellent wear-resistance. Allows compact design.
Worm SWG 1~6 Single thread ~3条 S45C Inducation Hardened Ground 2 Reasonably priced ground worms. Ready-to-use finished products from the J series, are also available.
Worm
Wheel
AG
NOTE 1
1~6 10~60 CAC702 (AlBC2) Hobbed 2 Made of aluminum bronze, have excellent wear-resistance. Wide selection is available for this item.
Worm SW 0.5~6 Single thread ~Double thread S45C Hobbed (Thread rolled) 4 Economical, commonly used worms that have broad utility. Ready-to-use finished products from the J series are also available.
SUW 0.5~3 Single thread ~Double thread SUS303 Hobbed 4 Rust-resistant worms made of stainless steel suitable for mating with DS or PG worm wheels. Finished products for the J series are also available.
Worm
Wheel
CG 1~6 10~120 FC200 Hobbed 4 Economical, commonly used worm wheels that have broad utility. Available with a large selection of modules and number of teeth.
BG 0.8~6 10~60 CAC502(PBC2) Hobbed 4 Phosphorous bronze worm wheels have excellent wear resistance. Interchangeable with CG Worm Wheels, and enhances strength.
PG 1~3 10~50 MC901 Hobbed 5 Light weight and strong MC Nylon worm wheels. Suitable for use in food machinery, and can be used without lubricant.
DG 0.5~0.8 10~60 Polyacetal Hobbed 5 Fine pitch worm wheels made of polyacetal, a stable plastic material.
NOTE1】 The material of cast hubs of AGF and AG worm wheels is FC200. AG worm wheels mate primarily with SWG worms. But, for Modules 0.8 or smaller, AG worm wheels mate with KWG worms.
NOTE2】 Since the load is bidirectional, the allowable root bending stress σFlim, calculated from JGMA 401-01, is set to 2/3 of the value.
Please see"Precision Grades of Worms" in Selection Hints section for details.


Copyright (C) 1996 KOHARA GEAR INDUSTRY CO.,LTD.
All Rights Reserved.