[Worms, Plastic Worm Gears (PG)] Series list    mating gears :  Steel Worms (SW) Stainless Steel Worms (SUW)
diagram
Specifications
Precision grade KHK W 002 grade 5 Surface treatment -
Reference section of gear Normal plane Surface finish Cut
Gear teeth Standard full depth Datum reference surface for teeth cutting Bore
Material MC901 Modifications Possible
Heat treatment -    
*Precision grade of this product corresponds to 'equivalent'.
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Catalog No.
Reduction ratio Normal plane
Module
Normal pressure angle No. of teeth
Number of start Helix angle Hand of thread Shape Bore
A
Hub dia.
B
Pitch dia.
C
Throat dia.
D
Outside dia.
D'
Face width
E
Hub width Total length
G
Mounting distance
J
Key width Key depth Screw Size Screw
L
Allowable torque(kgf·m)
Bending strength
Backlash low
(mm)
Backlash up
(mm)
Weight
(kg)
Unit Price
Click Here
Prices of J Series Products
1-4
Prices of J Series Products
5-10
Prices of J Series Products
11-20
Partner
  PG1-20R1 
 PG1-20R1J6 
  PG1-20R2 
 PG1-20R2J6 
  PG1-30R1 
 PG1-30R1J6 
 PG1-30R1J8 
  PG1-40R1 
 PG1-40R1J8 
 PG1-40R1J10 
 PG1-40R1J12 
  PG1-50R1 
 PG1-50R1J8 
 PG1-50R1J10 
 PG1-50R1J12 
 PG1-50R1J14 
 PG1-50R1J15 
 PG1-50R1J16 
 PG1-50R1J17 
  PG1.5-20R1 
 PG1.5-20R1J8 
 PG1.5-20R1J10 
  PG1.5-20R2 
 PG1.5-20R2J8 
 PG1.5-20R2J10 
  PG2-20R1 
 PG2-20R1J10 
 PG2-20R1J12 
 PG2-20R1J14 
 PG2-20R1J15 
 PG2-20R1J16 
 PG2-20R1J17 
  PG2-20R2 
 PG2-20R2J10 
 PG2-20R2J12 
 PG2-20R2J14 
 PG2-20R2J15 
 PG2-20R2J16 
 PG2-20R2J17 
  PG2.5-20R1 
 PG2.5-20R1J12 
 PG2.5-20R1J14 
 PG2.5-20R1J15 
 PG2.5-20R1J16 
 PG2.5-20R1J17 
 PG2.5-20R1J18 
 PG2.5-20R1J19 
  PG2.5-20R2 
 PG2.5-20R2J12 
 PG2.5-20R2J14 
 PG2.5-20R2J15 
 PG2.5-20R2J16 
 PG2.5-20R2J17 
 PG2.5-20R2J18 
 PG2.5-20R2J19 
  PG3-20R1 
 PG3-20R1J15 
 PG3-20R1J16 
 PG3-20R1J17 
 PG3-20R1J18 
 PG3-20R1J19 
 PG3-20R1J20 
 PG3-20R1J22 
 PG3-20R1J25 
 PG3-20R1J28 
 PG3-20R1J30 
  PG3-20R2 
 PG3-20R2J15 
 PG3-20R2J16 
 PG3-20R2J17 
 PG3-20R2J18 
 PG3-20R2J19 
 PG3-20R2J20 
 PG3-20R2J22 
 PG3-20R2J25 
 PG3-20R2J28 
 PG3-20R2J30 
20120°2013°35′RH161620.04222310 2018    0.0600.280.0058    SUW1-R1
20120°2013°35′RH1T61620.04222310 2018  M450.0600.280.0056    SUW1-R1
10120°2027°11′RH161620.16222310 2018    0.0600.280.0058    SUW1-R2
10120°2027°11′RH1T61620.16222310 2018  M450.0600.280.0056    SUW1-R2
30120°3013°35′RH162030.06323310 2023    0.100.280.012    SUW1-R1
30120°3013°35′RH1T62030.06323310 2023  M450.100.280.012    SUW1-R1
30120°3013°35′RH1T82030.06323310 2023  M550.100.280.011    SUW1-R1
40120°4013°35′RH182640.08424310 2028    0.1500.280.021    SUW1-R1
40120°4013°35′RH1T82640.08424310 2028  M550.1500.280.020    SUW1-R1
40120°4013°35′RH1K102640.08424310 202841.8M450.1500.280.019    SUW1-R1
40120°4013°35′RH1K122640.08424310 202841.8M450.1500.280.019    SUW1-R1
50120°5013°35′RH183050.1525310 2033    0.200.280.031    SUW1-R1
50120°5013°35′RH1T83050.1525310 2033  M550.200.280.031    SUW1-R1
50120°5013°35′RH1K103050.1525310 203341.8M450.200.280.030    SUW1-R1
50120°5013°35′RH1K123050.1525310 203341.8M450.200.280.029    SUW1-R1
50120°5013°35′RH1K143050.1525310 203352.3M450.200.280.028    SUW1-R1
50120°5013°35′RH1K153050.1525310 203352.3M450.200.280.027    SUW1-R1
50120°5013°35′RH1K163050.1525310 203352.3M450.200.280.027    SUW1-R1
50120°5013°35′RH1K173050.1525310 203352.3M450.200.280.026    SUW1-R1
201.520°2013°26′RH182230.053334.512 2227.5    0.1700.300.014    SUW1.5-R1
201.520°2013°26′RH1T82230.053334.512 2227.5  M550.1700.300.014    SUW1.5-R1
201.520°2013°26′RH1K102230.053334.512 2227.541.8M450.1700.300.013    SUW1.5-R1
101.520°2026°54′RH182230.223334.512 2227.5    0.1700.300.014    SUW1.5-R2
101.520°2026°54′RH1T82230.223334.512 2227.5  M550.1700.300.014    SUW1.5-R2
101.520°2026°54′RH1K102230.223334.512 2227.541.8M450.1700.300.013    SUW1.5-R2
20214°30′2013°42′RH1103340.08444622 3535.5    0.4900.330.046    SUW2-R1
20214°30′2013°42′RH1K103340.08444622 3535.541.8M46.50.4900.330.045    SUW2-R1
20214°30′2013°42′RH1K123340.08444622 3535.541.8M46.50.4900.330.043    SUW2-R1
20214°30′2013°42′RH1K143340.08444622 3535.552.3M46.50.4900.330.041    SUW2-R1
20214°30′2013°42′RH1K153340.08444622 3535.552.3M46.50.4900.330.040    SUW2-R1
20214°30′2013°42′RH1K163340.08444622 3535.552.3M46.50.4900.330.040    SUW2-R1
20214°30′2013°42′RH1K173340.08444622 3535.552.3M46.50.4900.330.038    SUW2-R1
10214°30′2027°25′RH1103340.34444622 3535.5    0.4900.330.046    SUW2-R2
10214°30′2027°25′RH1K103340.34444622 3535.541.8M46.50.4900.330.045    SUW2-R2
10214°30′2027°25′RH1K123340.34444622 3535.541.8M46.50.4900.330.043    SUW2-R2
10214°30′2027°25′RH1K143340.34444622 3535.552.3M46.50.4900.330.041    SUW2-R2
10214°30′2027°25′RH1K153340.34444622 3535.552.3M46.50.4900.330.040    SUW2-R2
10214°30′2027°25′RH1K163340.34444622 3535.552.3M46.50.4900.330.040    SUW2-R2
10214°30′2027°25′RH1K173340.34444622 3535.552.3M46.50.4900.330.038    SUW2-R2
202.520°2013°52′RH1123550.115557.522 3643.5    0.8600.360.066    SUW2.5-R1
202.520°2013°52′RH1K123550.115557.522 3643.541.8M470.8600.360.066    SUW2.5-R1
202.520°2013°52′RH1K143550.115557.522 3643.552.3M470.8600.360.064    SUW2.5-R1
202.520°2013°52′RH1K153550.115557.522 3643.552.3M470.8600.360.063    SUW2.5-R1
202.520°2013°52′RH1K163550.115557.522 3643.552.3M470.8600.360.062    SUW2.5-R1
202.520°2013°52′RH1K173550.115557.522 3643.552.3M470.8600.360.061    SUW2.5-R1
202.520°2013°52′RH1K183550.115557.522 3643.562.8M570.8600.360.059    SUW2.5-R1
202.520°2013°52′RH1K193550.115557.522 3643.562.8M570.8600.360.058    SUW2.5-R1
102.520°2027°46′RH1123550.465557.522 3643.5    0.8700.360.066    SUW2.5-R2
102.520°2027°46′RH1K123550.465557.522 3643.541.8M470.8700.360.066    SUW2.5-R2
102.520°2027°46′RH1K143550.465557.522 3643.552.3M470.8700.360.064    SUW2.5-R2
102.520°2027°46′RH1K153550.465557.522 3643.552.3M470.8700.360.063    SUW2.5-R2
102.520°2027°46′RH1K163550.465557.522 3643.552.3M470.8700.360.062    SUW2.5-R2
102.520°2027°46′RH1K173550.465557.522 3643.552.3M470.8700.360.061    SUW2.5-R2
102.520°2027°46′RH1K183550.465557.522 3643.562.8M570.8700.360.059    SUW2.5-R2
102.520°2027°46′RH1K193550.465557.522 3643.562.8M570.8700.360.058    SUW2.5-R2
20314°30′2013°55′RH1155060.14666928 4352    1.400.380.13    SUW3-R1
20314°30′2013°55′RH1K155060.14666928 435252.3M4*7.51.400.380.13    SUW3-R1
20314°30′2013°55′RH1K165060.14666928 435252.3M4*7.51.400.380.12    SUW3-R1
20314°30′2013°55′RH1K175060.14666928 435252.3M4*7.51.400.380.12    SUW3-R1
20314°30′2013°55′RH1K185060.14666928 435262.8M57.51.400.380.12    SUW3-R1
20314°30′2013°55′RH1K195060.14666928 435262.8M57.51.400.380.12    SUW3-R1
20314°30′2013°55′RH1K205060.14666928 435262.8M57.51.400.380.12    SUW3-R1
20314°30′2013°55′RH1K225060.14666928 435262.8M57.51.400.380.12    SUW3-R1
20314°30′2013°55′RH1K255060.14666928 435283.3M67.51.400.380.11    SUW3-R1
20314°30′2013°55′RH1K285060.14666928 435283.3M67.51.400.380.10    SUW3-R1
20314°30′2013°55′RH1K305060.14666928 435283.3M67.51.400.380.099    SUW3-R1
10314°30′2027°50′RH1155060.57666928 4352    1.4100.380.13    SUW3-R2
10314°30′2027°50′RH1K155060.57666928 435252.3M4*7.51.4100.380.13    SUW3-R2
10314°30′2027°50′RH1K165060.57666928 435252.3M4*7.51.4100.380.12    SUW3-R2
10314°30′2027°50′RH1K175060.57666928 435252.3M4*7.51.4100.380.12    SUW3-R2
10314°30′2027°50′RH1K185060.57666928 435262.8M57.51.4100.380.12    SUW3-R2
10314°30′2027°50′RH1K195060.57666928 435262.8M57.51.4100.380.12    SUW3-R2
10314°30′2027°50′RH1K205060.57666928 435262.8M57.51.4100.380.12    SUW3-R2
10314°30′2027°50′RH1K225060.57666928 435262.8M57.51.4100.380.12    SUW3-R2
10314°30′2027°50′RH1K255060.57666928 435283.3M67.51.4100.380.11    SUW3-R2
10314°30′2027°50′RH1K285060.57666928 435283.3M67.51.4100.380.10    SUW3-R2
10314°30′2027°50′RH1K305060.57666928 435283.3M67.51.4100.380.099    SUW3-R2
Product Precautions
[Precaution on J Series Products]  ①Since J series are available-on-request products, it requires a lead-time within 2 working-days (excludes the day ordered), after placing an order. Number of products we can handle for one order is 1 to 20 units. In case of ordering products over 20 units, we shall submit a quote.
 ②Keyways are made according to JIS B1301 standards and Js 9 tolerance.
 ③Certain products which would otherwise have a very long tapped hole are conterbored to reduce the length of the tap. (Products marked with “ * “ are the tap size). For products which have a very short tapped hole (Products marked with “ ** “ are the tap size), the length of tapped hole is less than the nominal diameter (4mm or lesser for M4). Since tapped holes made for plastic products are easily broken, avoid too much tightening when fastening screws.
 ④For products, the use of H1T shaped Set Screws for fastening gears to a shaft is a method only applicable to the usage for light loads. For secure fastening, please use dowel pins in combination.

[Caution on Product Characteristics]  ①Worm Wheels are profile shifted to create the proper center distance.
 ②Significant variations in temperature or humidity can cause dimensional changes in plastic gears (MC Nylon gears), for bore size (H8 when produced), teeth diameter, and backlash. Please see the section “Design of Plastic Gears” in the technical reference.
 ③The allowable torque shown in the table are the calculated values according to the assumed usage conditions. Usage above the value in brackets will exceed the maximum allowable sliding speed, if no lubrication is applied. So, lubrication is required. For more details, please see precaution.

[Caution on Secondary Operations]  ①Please read “Cautions on Performing Secondary Operations”when performing modification and/or secondary operations of Worm Gears. Haguruma Kobo, the KHK's system for quick modification of KHK stock gears is also available.
 ②Plastic gears are susceptible to the effects of temperature and moisture. Dimensional changes may occur while performing secondary operations and during post-machining operations.
  Please click here to Unit Price & Delivery Time.