Overview
The Gates 8MX-34S-21 is a Poly Chain GT2 synchronous sprocket engineered for power transmission applications requiring precise speed control and load transfer. This sprocket uses Gates’ patented tooth profile and is statically balanced to ensure safe operation while supporting the full power capabilities of the Poly Chain belt product range. Manufactured to series 7718 specifications, this unit accepts taper-lock bushing systems for easy shaft mounting.
Key Features
- Precisely manufactured and statically balanced to ISO 1940 (1973) class G16 for smooth, vibration-free operation
- Taper-lock bore accommodates shafts from 1/2 to 1-11/16 inches with 1610 bushing compatibility
- Compact design saves shaft space, keeps load closer to bearing, extends reducer life, and keeps overhung load below manufacturer recommendations
- Ductile iron construction for strength and durability in continuous-duty drives
- Safe operating rim speed limit: 6,500 fpm maximum to prevent belt and sprocket damage
Technical Specifications
Key performance and dimensional parameters:
Typical Applications
Gates 8MX-34S-21 sprockets are designed for use with high power density Gates Poly Chain GT2 and Poly Chain GT Carbon belts in synchronous belt drives. Common uses include:
- Precision machinery and machine tools
- Packaging and conveyor systems
- Industrial automation and material handling
- Wastewater treatment aeration systems
- HVAC and refrigeration equipment
Compatibility & Replacements
Compatible With
- Gates Poly Chain GT2 belts (21mm width)
- Gates Poly Chain GT Carbon belts
- Any synchronous belt drive system rated for 8mm pitch, 34-tooth sprockets
- Shafts with 1/2 to 1-11/16 inch diameter with 1610 taper-lock bushing
Replaces / Drop-In Replacement For
- Gates 7718-2034 (standard ductile iron version)
- OEM sprockets with matching 8mm pitch, 34-groove, 21mm wide specifications
- SS-8MX-34S-21-MPB (minimum plain bore variant)
Works With
- Gates Poly Chain belt drive system engineering software
- Standard industrial synchronous belt drive conveyor systems
- Taper-lock bushing mounting systems
- Power transmission systems rated for 6,500 fpm rim speed maximum
