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Gates 77182042 8MX-42S-21 Poly Chain GT Carbon Belt with 8MX pitch, 42 teeth, and 21 mm width. Designed for high-torque synchronous drives requiring positive engagement and zero-slip power transmission. Features carbon-fiber tensile cord for exceptional strength and minimal stretch under load.
MODEL 8MX-42S-21
Contact supplier for technical support on: 303-744-5800
$150.72 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable:No
Belt Pitch (in)
0.31
Belt Width (in)
0.83
Bore Diameter
1/2 to 2-1/8 in
Bore Max (in)
2.125
Bore Min (in)
0.5
Bore Type
Taper-Lock
Bushing Style
Taper Lock™
Bushing Type
2012
Face Width
1-1/4 in
Flange Diameter
4.91 in
Material
Ductile Iron
Number of Grooves
42
Outside Diameter
4.148 in
Pitch (mm)
8 mm
Pitch Diameter
4.211 in
Rim Speed (fpm)
6500
Rim Speed (mps)
33.02
Series
7718
Suitable For Use With
21 mm W Poly Chain Belt
Width (mm)
21
Genuine, strong, durable sprockets designed for use with high power density Gates Poly Chain Carbon Volt, Poly Chain GT2, and Poly Chain GT Carbon belts.
- Smaller, narrower sprockets save shaft space, keep the load closer to bearing and extend life of reducer.
- Poly Chain GT2 Sprockets keep overhung load below manufacturers' recommendation.
- Precisely manufactured and statically balanced to ISO 1940 (1973) to class G16.
THE INDUSTRY'S BEST.
With patented, carbon tensile cord design for high-torque, low-speed drives, Gates engineers were the first in the world to incorporate a high fatigue-resisting carbon fiber tensile cord into the belt, which is made of a new polyurethane compound. Consequently, Poly Chain GT Carbon quickly became the most powerful line of synchronous belts on the market, providing a maintenance-free, energy saving, and environmentally friendly operation, offering an excellent alternative to roller chain and gear drives.
Features and Benefits
- Keep overhung load below manufacturers recommendation.
- Full split in bushing allows for easy installation and removal.
- Precise sprocket design produces positive, press fit to shaft.
- Re-work services have turnaround time.
- Warning: Do NOT use these sprockets with rim speeds in excess of 6, 500 fpm.
SKU: 179389
Gates b-55 belt
We use these belts on wastewater lagoon aerators which run 24/7. Great price for a high quality belt and receive them within a few days of ordering!
Read moreSKU: 1245113
Great belts
Bought these for my lathe. They are much better made than the original. MROSupply charges a very competitive price and the packaging and shipping speed was great.
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SKU: 179389
Gates b-55 belt
We use these belts on wastewater lagoon aerators which run 24/7. Great price for a high quality belt and receive them within a few days of ordering!
Read moreSKU: 1245113
Great belts
Bought these for my lathe. They are much better made than the original. MROSupply charges a very competitive price and the packaging and shipping speed was great.
Read moreIn order to be eligible for a return, product to be returned must be at least $150 US. Items must be unused and unmounted, in resalable condition. Return authorization must be requested, no credit or exchanges will be granted if items are shipped back without return authorization or if items are not in resalable condition. Re-stocking fee is $60 US flat, cannot be voided if placing an off-setting order. Made To Order items are Non-Returnable and Non-Cancellable.