Looking for information on IS Internal Gears? Let us check the exact model and the status shown in the KG product search.
Official KG product-range illustration.
Customer: What is this product family?
KAYO: This family has teeth on the inside of the ring. Match the mating spur gear and check tooth-count compatibility and assembly clearance.
Customer: Which specifications are available?
KAYO: The official search contains 15 model records in this group: 0 are not marked discontinued and 15 are marked discontinued. All models below are historical references; check replacement options before ordering. Dimensions use the units in the headings; shape letters are manufacturer codes. A dash or blank indicates that the search does not specify a value.
| Model | Module | Material | Teeth | Reference diameter (mm) | Face width (mm) | Outside diameter (mm) | Search status |
|---|---|---|---|---|---|---|---|
| IS50B60A-0350 | 0.5 | C3713P/C3604B | 60 | 30.0 | 3 | 50 | Discontinued |
| IS50B100A-0375 | 0.5 | C3713P/C3604B | 100 | 50.0 | 3 | 75 | Discontinued |
| IS80B90A-0700 | 0.8 | C3713P/C3604B | 90 | 72.0 | 7 | 100 | Discontinued |
| IS1S80A-1010 | 1.0 | S45C | 80 | 80.0 | 10 | 110 | Discontinued |
| IS1S120A-1050 | 1.0 | S45C | 120 | 120.0 | 10 | 150 | Discontinued |
Customer: Which full model codes are not marked discontinued?
KAYO: None in this retrieved search group.
Customer: Which codes are marked discontinued?
KAYO: IS50B60A-0350, IS50B80A-0360, IS50B90A-0370, IS50B100A-0375, IS50B120A-0380, IS80B60A-0780, IS80B80A-0790, IS80B90A-0700, IS80B100A-0705, IS80B120A-0720, IS1S60A-1090, IS1S80A-1010, IS1S90A-1020, IS1S100A-1030, IS1S120A-1050. These are historical model references.
Customer: What should I check before selecting a model?
KAYO: Use the complete model code, including symbols and bore or shaft suffixes. Compare the exact drawing, mating component, operating speed, load and mounting requirements. Use the manufacturer performance data for the actual application.
Customer: What details should I send for an enquiry?
KAYO: Please send the full KG model code, quantity, mating component, shaft arrangement, critical dimensions, speed and load. For a discontinued code, include the existing part drawing or dimensions so that a replacement can be reviewed.
References: KG official product range | Official example model record | KG model search. Model-status snapshot: 21 October 2026.