Worm Gear Reducer Model 418 Rugged Cast Iron Housing with SAE 2 Bolt 'A' Flange
Model 418 Worm Gear Reducers

- A hardened, ground worm drives the centrifugally cast bronze gear for high efficiency and long life
- Output torque from 918 to 2.868 inch pounds
- Weight: 30 pounds
- All ratings based on Class 1 Service Factor
- Cast Iron Gear Also Available
- Other input flanges available in quantity on a special order basis
Item # |
Ratio |
Shaft Arrangement and Rotation |
Input Specs |
Output Specs |
Output Torque |
Output H.P. |
---|---|---|---|---|---|---|
418-136 | Ratio N/A 5:1 |
Shaft Arrangement and Rotation
![]() Type AR |
Input Specs N/A .23hp@25rpm .45hp@50rpm .84hp@100rpm 2.40hp@350rpm 3.21hp@540rpm 4.55hp@1125rpm 5.49hp@1725rpm | Output Specs N/A .18hp .35hp .69hp 2.07hp 2.84hp 4.15hp 5.10hp | Output Torque N/A | Output H.P. N/A |
418-140 | Ratio N/A 5:1 |
Shaft Arrangement and Rotation
![]() Type BR |
Input Specs N/A .23hp@25rpm .45hp@50rpm .84hp@100rpm 2.40hp@350rpm 3.21hp@540rpm 4.55hp@1125rpm 5.49hp@1725rpm | Output Specs N/A .18hp .35hp .69hp 2.07hp 2.84hp 4.15hp 5.10hp | Output Torque N/A | Output H.P. N/A |
418-141 | Ratio N/A 5:1 |
Shaft Arrangement and Rotation
![]() Type CR |
Input Specs N/A .23hp@25rpm .45hp@50rpm .84hp@100rpm 2.40hp@350rpm 3.21hp@540rpm 4.55hp@1125rpm 5.49hp@1725rpm | Output Specs N/A .18hp .35hp .69hp 2.07hp 2.84hp 4.15hp 5.10hp | Output Torque N/A | Output H.P. N/A |
418-143 | Ratio N/A 5:1 |
Shaft Arrangement and Rotation
![]() Type DR |
Input Specs N/A .23hp@25rpm .45hp@50rpm .84hp@100rpm 2.40hp@350rpm 3.21hp@540rpm 4.55hp@1125rpm 5.49hp@1725rpm | Output Specs N/A .18hp .35hp .69hp 2.07hp 2.84hp 4.15hp 5.10hp | Output Torque N/A | Output H.P. N/A |
418-144 | Ratio N/A 5:1 |
Shaft Arrangement and Rotation
![]() Type GR |
Input Specs N/A .23hp@25rpm .45hp@50rpm .84hp@100rpm 2.40hp@350rpm 3.21hp@540rpm 4.55hp@1125rpm 5.49hp@1725rpm | Output Specs N/A .18hp .35hp .69hp 2.07hp 2.84hp 4.15hp 5.10hp | Output Torque N/A | Output H.P. N/A |
418-116 | Ratio N/A 5:1 |
Shaft Arrangement and Rotation
![]() Type HR |
Input Specs N/A .23hp@25rpm .45hp@50rpm .84hp@100rpm 2.40hp@350rpm 3.21hp@540rpm 4.55hp@1125rpm 5.49hp@1725rpm | Output Specs N/A .18hp .35hp .69hp 2.07hp 2.84hp 4.15hp 5.10hp | Output Torque N/A | Output H.P. N/A |
418-133 | Ratio N/A 10:1 |
Shaft Arrangement and Rotation
![]() Type AR |
Input Specs N/A .17hp@25rpm .31hp@50rpm .58hp@100rpm 1.60hp@350rpm 2.10hp@540rpm 2.89hp@1125rpm 3.50hp@1725rpm | Output Specs N/A .11hp .21hp .41hp 1.23hp 1.68hp 2.44hp 3.04hp | Output Torque N/A | Output H.P. N/A |
418-112 | Ratio N/A 10:1 |
Shaft Arrangement and Rotation
![]() Type BR |
Input Specs N/A .17hp@25rpm .31hp@50rpm .58hp@100rpm 1.60hp@350rpm 2.10hp@540rpm 2.89hp@1125rpm 3.50hp@1725rpm | Output Specs N/A .11hp .21hp .41hp 1.23hp 1.68hp 2.44hp 3.04hp | Output Torque N/A | Output H.P. N/A |
418-142 | Ratio N/A 10:1 |
Shaft Arrangement and Rotation
![]() Type CR |
Input Specs N/A .17hp@25rpm .31hp@50rpm .58hp@100rpm 1.60hp@350rpm 2.10hp@540rpm 2.89hp@1125rpm 3.50hp@1725rpm | Output Specs N/A .11hp .21hp .41hp 1.23hp 1.68hp 2.44hp 3.04hp | Output Torque N/A | Output H.P. N/A |
418-126 | Ratio N/A 10:1 |
Shaft Arrangement and Rotation
![]() Type DR |
Input Specs N/A .17hp@25rpm .31hp@50rpm .58hp@100rpm 1.60hp@350rpm 2.10hp@540rpm 2.89hp@1125rpm 3.50hp@1725rpm | Output Specs N/A .11hp .21hp .41hp 1.23hp 1.68hp 2.44hp 3.04hp | Output Torque N/A | Output H.P. N/A |
418-145 | Ratio N/A 10:1 |
Shaft Arrangement and Rotation
![]() Type GR |
Input Specs N/A .17hp@25rpm .31hp@50rpm .58hp@100rpm 1.60hp@350rpm 2.10hp@540rpm 2.89hp@1125rpm 3.50hp@1725rpm | Output Specs N/A .11hp .21hp .41hp 1.23hp 1.68hp 2.44hp 3.04hp | Output Torque N/A | Output H.P. N/A |
418-118 | Ratio N/A 10:1 |
Shaft Arrangement and Rotation
![]() Type HR |
Input Specs N/A .17hp@25rpm .31hp@50rpm .58hp@100rpm 1.60hp@350rpm 2.10hp@540rpm 2.89hp@1125rpm 3.50hp@1725rpm | Output Specs N/A .11hp .21hp .41hp 1.23hp 1.68hp 2.44hp 3.04hp | Output Torque N/A | Output H.P. N/A |
418-110 | Ratio N/A 20:1 |
Shaft Arrangement and Rotation
![]() Type AR |
Input Specs N/A .13hp@25rpm .23hp@50rpm .41hp@100rpm 1.05hp@350rpm 1.35hp@540rpm 1.79hp@1125rpm 2.09hp@1725rpm | Output Specs N/A .06hp .11hp .22hp .66hp .90hp 1.30hp 1.60hp | Output Torque N/A | Output H.P. N/A |
418-111 | Ratio N/A 20:1 |
Shaft Arrangement and Rotation
![]() Type BR |
Input Specs N/A .13hp@25rpm .23hp@50rpm .41hp@100rpm 1.05hp@350rpm 1.35hp@540rpm 1.79hp@1125rpm 2.09hp@1725rpm | Output Specs N/A .06hp .11hp .22hp .66hp .90hp 1.30hp 1.60hp | Output Torque N/A | Output H.P. N/A |
418-128 | Ratio N/A 20:1 |
Shaft Arrangement and Rotation
![]() Type CR |
Input Specs N/A .13hp@25rpm .23hp@50rpm .41hp@100rpm 1.05hp@350rpm 1.35hp@540rpm 1.79hp@1125rpm 2.09hp@1725rpm | Output Specs N/A .06hp .11hp .22hp .66hp .90hp 1.30hp 1.60hp | Output Torque N/A | Output H.P. N/A |
418-115 | Ratio N/A 20:1 |
Shaft Arrangement and Rotation
![]() Type DR |
Input Specs N/A .13hp@25rpm .23hp@50rpm .41hp@100rpm 1.05hp@350rpm 1.35hp@540rpm 1.79hp@1125rpm 2.09hp@1725rpm | Output Specs N/A .06hp .11hp .22hp .66hp .90hp 1.30hp 1.60hp | Output Torque N/A | Output H.P. N/A |
418-109 | Ratio N/A 20:1 |
Shaft Arrangement and Rotation
![]() Type GR |
Input Specs N/A .13hp@25rpm .23hp@50rpm .41hp@100rpm 1.05hp@350rpm 1.35hp@540rpm 1.79hp@1125rpm 2.09hp@1725rpm | Output Specs N/A .06hp .11hp .22hp .66hp .90hp 1.30hp 1.60hp | Output Torque N/A | Output H.P. N/A |
418-146 | Ratio N/A 20:1 |
Shaft Arrangement and Rotation
![]() Type HR |
Input Specs N/A .13hp@25rpm .23hp@50rpm .41hp@100rpm 1.05hp@350rpm 1.35hp@540rpm 1.79hp@1125rpm 2.09hp@1725rpm | Output Specs N/A .06hp .11hp .22hp .66hp .90hp 1.30hp 1.60hp | Output Torque N/A | Output H.P. N/A |