[Bronze Worm Gears (BG)] Series list    mating gears :  Steel Worms (SW) Stainless Steel Worms (SUW)
diagram
Specifications
Precision grade KHK W 002 grade 4 Surface treatment -
Reference section of gear Normal plane Surface finish Cut
Gear teeth Standard full depth Datum reference surface for teeth cutting Bore (H7)
Material CAC502(PBC2) Modifications Possible
Heat treatment -    
  1 / 2 Page      196 items in total    Module   No. of Teeth       
< 1 | 2 >    precaution    
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
F
Total length
G
Mounting distance
J
Key width Key depth Screw Size Screw
L
Allowable torque(kgf·m)
Surface durability
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
  BG0.5-20R1 
  BG0.5-20R2 
  BG0.5-30R1 
  BG0.5-30R2 
  BG0.5-40R1 
  BG0.5-50R1 
  BG0.5-60R1 
  BG0.8-20R1 
  BG0.8-20R2 
  BG0.8-30R1 
  BG0.8-30R2 
  BG0.8-40R1 
  BG0.8-50R1 
  BG0.8-60R1 
  BG1-20R1 
 BG1-20R1J6 
  BG1-20R2 
 BG1-20R2J6 
  BG1-30R1 
 BG1-30R1J6 
 BG1-30R1J8 
  BG1-30R2 
 BG1-30R2J6 
 BG1-30R2J8 
  BG1-40R1 
 BG1-40R1J8 
 BG1-40R1J10 
 BG1-40R1J12 
  BG1-50R1 
 BG1-50R1J8 
 BG1-50R1J10 
 BG1-50R1J12 
 BG1-50R1J14 
 BG1-50R1J15 
 BG1-50R1J16 
 BG1-50R1J17 
  BG1.25-20R1 
 BG1.25-20R1J6 
 BG1.25-20R1J8 
  BG1.25-20R2 
 BG1.25-20R2J6 
 BG1.25-20R2J8 
  BG1.25-30R1 
 BG1.25-30R1J6 
 BG1.25-30R1J8 
 BG1.25-30R1J10 
 BG1.25-30R1J12 
  BG1.25-30R2 
 BG1.25-30R2J6 
 BG1.25-30R2J8 
 BG1.25-30R2J10 
 BG1.25-30R2J12 
  BG1.25-40R1 
 BG1.25-40R1J8 
 BG1.25-40R1J10 
 BG1.25-40R1J12 
 BG1.25-40R1J14 
 BG1.25-40R1J15 
 BG1.25-40R1J16 
 BG1.25-40R1J17 
  BG1.25-50R1 
 BG1.25-50R1J8 
 BG1.25-50R1J10 
 BG1.25-50R1J12 
 BG1.25-50R1J14 
 BG1.25-50R1J15 
 BG1.25-50R1J16 
 BG1.25-50R1J17 
 BG1.25-50R1J18 
 BG1.25-50R1J19 
 BG1.25-50R1J20 
 BG1.25-50R1J22 
  BG1.5-20R1 
 BG1.5-20R1J8 
 BG1.5-20R1J10 
  BG1.5-20R2 
 BG1.5-20R2J8 
 BG1.5-20R2J10 
  BG1.5-30R1 
 BG1.5-30R1J10 
 BG1.5-30R1J12 
 BG1.5-30R1J14 
 BG1.5-30R1J15 
 BG1.5-30R1J16 
 BG1.5-30R1J17 
  BG1.5-30R2 
 BG1.5-30R2J10 
 BG1.5-30R2J12 
 BG1.5-30R2J14 
 BG1.5-30R2J15 
 BG1.5-30R2J16 
 BG1.5-30R2J17 
  BG1.5-40R1 
 BG1.5-40R1J12 
 BG1.5-40R1J14 
 BG1.5-40R1J15 
 BG1.5-40R1J16 
 BG1.5-40R1J17 
  BG1.5-50R1 
 BG1.5-50R1J12 
200.520°2012°36′RHAT4910.01 11571210.5  M3**3.50.02400.160.0061    SW0.5-R1
100.520°2025°13′RHAT4910.04 11571210.5  M3**3.50.02300.160.0061    SW0.5-R2
300.520°3012°36′RHAT41215.02 16571213  M33.50.05100.160.014    SW0.5-R1
150.520°3025°13′RHAT41215.06 16571213  M33.50.0500.160.014    SW0.5-R2
400.520°4012°36′RHAT51520.02 21571215.5  M43.50.08700.160.023    SW0.5-R1
500.520°5012°36′RHAT52025.03 26571218  M43.50.1300.160.039    SW0.5-R1
600.520°6012°36′RHAT52530.03 31571220.5  M43.50.1800.160.059    SW0.5-R1
200.820°2013°17′RHA51216.03 17.6991815    0.090.040.220.023    SW0.8-R1
100.820°2026°34′RHA51216.11 17.6991815    0.0880.040.220.023    SW0.8-R2
300.820°3013°17′RHA51824.04 25.6991819    0.190.040.220.055    SW0.8-R1
150.820°3026°34′RHA51824.16 25.6991819    0.190.040.220.055    SW0.8-R2
400.820°4013°17′RHA62032.05 33.6991823    0.330.040.220.087    SW0.8-R1
500.820°5013°17′RHA82540.06 41.6991827    0.50.040.220.13    SW0.8-R1
600.820°6013°17′RHA82548.08 49.6991831    0.70.040.220.18    SW0.8-R1
20120°2013°35′RH161620.05222310102018    0.160.060.240.043    SW1-R1
20120°2013°35′RH1T61620.05222310102018  M450.160.060.240.043    SW1-R1
10120°2027°11′RH161620.16222310102018    0.160.060.240.043    SW1-R2
10120°2027°11′RH1T61620.16222310102018  M450.160.060.240.043    SW1-R2
30120°3013°35′RH162030.07323310102023    0.340.060.240.089    SW1-R1
30120°3013°35′RH1T62030.07323310102023  M450.340.060.240.088    SW1-R1
30120°3013°35′RH1T82030.07323310102023  M550.340.060.240.084    SW1-R1
15120°3027°11′RH162030.24323310102023    0.340.060.240.089    SW1-R2
15120°3027°11′RH1T62030.24323310102023  M450.340.060.240.088    SW1-R2
15120°3027°11′RH1T82030.24323310102023  M550.340.060.240.084    SW1-R2
40120°4013°35′RH182640.08424310102028    0.590.060.240.15    SW1-R1
40120°4013°35′RH1T82640.08424310102028  M550.590.060.240.15    SW1-R1
40120°4013°35′RH1K102640.0842431010202841.8M450.590.060.240.15    SW1-R1
40120°4013°35′RH1K122640.0842431010202841.8M450.590.060.240.14    SW1-R1
50120°5013°35′RH183050.1525310102033    0.890.060.240.23    SW1-R1
50120°5013°35′RH1T83050.1525310102033  M550.890.060.240.23    SW1-R1
50120°5013°35′RH1K103050.152531010203341.8M450.890.060.240.23    SW1-R1
50120°5013°35′RH1K123050.152531010203341.8M450.890.060.240.22    SW1-R1
50120°5013°35′RH1K143050.152531010203352.3M450.890.060.240.21    SW1-R1
50120°5013°35′RH1K153050.152531010203352.3M450.890.060.240.21    SW1-R1
50120°5013°35′RH1K163050.152531010203352.3M450.890.060.240.20    SW1-R1
50120°5013°35′RH1K173050.152531010203352.3M450.890.060.240.20    SW1-R1
201.2520°2013°25′RH162025.0427.528.751192023    0.270.080.260.070    SW1.25-R1
201.2520°2013°25′RH1T62025.0427.528.751192023  M44.50.270.080.260.072    SW1.25-R1
201.2520°2013°25′RH1T82025.0427.528.751192023  M54.50.270.080.260.068    SW1.25-R1
101.2520°2026°50′RH162025.1827.528.751192023    0.260.080.260.070    SW1.25-R2
101.2520°2026°50′RH1T62025.1827.528.751192023  M44.50.260.080.260.072    SW1.25-R2
101.2520°2026°50′RH1T82025.1827.528.751192023  M54.50.260.080.260.068    SW1.25-R2
301.2520°3013°25′RH162537.574041.251192029.25    0.580.080.260.15    SW1.25-R1
301.2520°3013°25′RH1T62537.574041.251192029.25  M44.50.580.080.260.15    SW1.25-R1
301.2520°3013°25′RH1T82537.574041.251192029.25  M54.50.580.080.260.14    SW1.25-R1
301.2520°3013°25′RH1K102537.574041.251192029.2541.8M44.50.580.080.260.14    SW1.25-R1
301.2520°3013°25′RH1K122537.574041.251192029.2541.8M44.50.580.080.260.13    SW1.25-R1
151.2520°3026°50′RH162537.774041.251192029.25    0.570.080.260.15    SW1.25-R2
151.2520°3026°50′RH1T62537.774041.251192029.25  M44.50.570.080.260.15    SW1.25-R2
151.2520°3026°50′RH1T82537.774041.251192029.25  M54.50.570.080.260.14    SW1.25-R2
151.2520°3026°50′RH1K102537.774041.251192029.2541.8M44.50.570.080.260.14    SW1.25-R2
151.2520°3026°50′RH1K122537.774041.251192029.2541.8M44.50.570.080.260.13    SW1.25-R2
401.2520°4013°25′RH183050.0952.553.751192035.5    0.990.080.260.24    SW1.25-R1
401.2520°4013°25′RH1T83050.0952.553.751192035.5  M54.50.990.080.260.25    SW1.25-R1
401.2520°4013°25′RH1K103050.0952.553.751192035.541.8M44.50.990.080.260.24    SW1.25-R1
401.2520°4013°25′RH1K123050.0952.553.751192035.541.8M44.50.990.080.260.23    SW1.25-R1
401.2520°4013°25′RH1K143050.0952.553.751192035.552.3M44.50.990.080.260.23    SW1.25-R1
401.2520°4013°25′RH1K153050.0952.553.751192035.552.3M44.50.990.080.260.22    SW1.25-R1
401.2520°4013°25′RH1K163050.0952.553.751192035.552.3M44.50.990.080.260.22    SW1.25-R1
401.2520°4013°25′RH1K173050.0952.553.751192035.552.3M44.50.990.080.260.21    SW1.25-R1
501.2520°5013°25′RH184062.616566.251192041.75    1.50.080.260.40    SW1.25-R1
501.2520°5013°25′RH1T84062.616566.251192041.75  M54.51.50.080.260.40    SW1.25-R1
501.2520°5013°25′RH1K104062.616566.251192041.7541.8M4*4.51.50.080.260.39    SW1.25-R1
501.2520°5013°25′RH1K124062.616566.251192041.7541.8M44.51.50.080.260.39    SW1.25-R1
501.2520°5013°25′RH1K144062.616566.251192041.7552.3M44.51.50.080.260.38    SW1.25-R1
501.2520°5013°25′RH1K154062.616566.251192041.7552.3M44.51.50.080.260.37    SW1.25-R1
501.2520°5013°25′RH1K164062.616566.251192041.7552.3M44.51.50.080.260.37    SW1.25-R1
501.2520°5013°25′RH1K174062.616566.251192041.7552.3M44.51.50.080.260.36    SW1.25-R1
501.2520°5013°25′RH1K184062.616566.251192041.7562.8M54.51.50.080.260.36    SW1.25-R1
501.2520°5013°25′RH1K194062.616566.251192041.7562.8M54.51.50.080.260.35    SW1.25-R1
501.2520°5013°25′RH1K204062.616566.251192041.7562.8M54.51.50.080.260.35    SW1.25-R1
501.2520°5013°25′RH1K224062.616566.251192041.7562.8M54.51.50.080.260.34    SW1.25-R1
201.520°2013°26′RH182230.053334.512102227.5    0.40.080.260.10    SW1.5-R1
201.520°2013°26′RH1T82230.053334.512102227.5  M550.40.080.260.11    SW1.5-R1
201.520°2013°26′RH1K102230.053334.512102227.541.8M450.40.080.260.098    SW1.5-R1
101.520°2026°54′RH182230.223334.512102227.5    0.390.080.260.10    SW1.5-R2
101.520°2026°54′RH1T82230.223334.512102227.5  M550.390.080.260.11    SW1.5-R2
101.520°2026°54′RH1K102230.223334.512102227.541.8M450.390.080.260.098    SW1.5-R2
301.520°3013°26′RH1103045.084849.512102235    0.860.080.260.22    SW1.5-R1
301.520°3013°26′RH1K103045.084849.51210223541.8M450.860.080.260.22    SW1.5-R1
301.520°3013°26′RH1K123045.084849.51210223541.8M450.860.080.260.22    SW1.5-R1
301.520°3013°26′RH1K143045.084849.51210223552.3M450.860.080.260.21    SW1.5-R1
301.520°3013°26′RH1K153045.084849.51210223552.3M450.860.080.260.20    SW1.5-R1
301.520°3013°26′RH1K163045.084849.51210223552.3M450.860.080.260.20    SW1.5-R1
301.520°3013°26′RH1K173045.084849.51210223552.3M450.860.080.260.19    SW1.5-R1
151.520°3026°54′RH1103045.334849.512102235    0.850.080.260.22    SW1.5-R2
151.520°3026°54′RH1K103045.334849.51210223541.8M450.850.080.260.22    SW1.5-R2
151.520°3026°54′RH1K123045.334849.51210223541.8M450.850.080.260.22    SW1.5-R2
151.520°3026°54′RH1K143045.334849.51210223552.3M450.850.080.260.21    SW1.5-R2
151.520°3026°54′RH1K153045.334849.51210223552.3M450.850.080.260.20    SW1.5-R2
151.520°3026°54′RH1K163045.334849.51210223552.3M450.850.080.260.20    SW1.5-R2
151.520°3026°54′RH1K173045.334849.51210223552.3M450.850.080.260.19    SW1.5-R2
401.520°4013°26′RH1123060.116364.512102242.5    1.480.080.260.35    SW1.5-R1
401.520°4013°26′RH1K123060.116364.512102242.541.8M451.480.080.260.35    SW1.5-R1
401.520°4013°26′RH1K143060.116364.512102242.552.3M451.480.080.260.34    SW1.5-R1
401.520°4013°26′RH1K153060.116364.512102242.552.3M451.480.080.260.34    SW1.5-R1
401.520°4013°26′RH1K163060.116364.512102242.552.3M451.480.080.260.33    SW1.5-R1
401.520°4013°26′RH1K173060.116364.512102242.552.3M451.480.080.260.33    SW1.5-R1
501.520°5013°26′RH1124075.137879.514102450    2.610.080.260.65    SW1.5-R1
501.520°5013°26′RH1K124075.137879.51410245041.8M452.610.080.260.65    SW1.5-R1
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.
 ②Keyways are made according to JIS B1301 standards and Js 9 tolerance. For products with a tapped hole, a set screw is included as an accessory.
 ③The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see precaution for more details.
 ④If the bore size is less thanφ4, the tolerance class is H8. If the bore size is φ5 orφ6, and the hole length exceeds 3 times of the bore size, the class is also H8.

[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.
  Please click here to Unit Price & Delivery Time.