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AMP 10 Tooth 520 Front Sprocket for QS138 90H Electric Motor

AMP 10 Tooth 520 Front Sprocket for QS138 90H Electric Motor

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AMP Sprockets 10 Tooth (10T) 520 Pitch Front Sprocket for QS138 90H Electric Motor with Tapered Shaft

Maximize your torque and upgrade your chain size with this 10T front sprocket suitable for the QS138 90H BLDC Electric Motor with Tapered Shaft. These AMP sprockets were made specifically for this motor and come complete with a perfect fit key bar. These sprockets are made to last significantly longer that the standard finished bore sprockets on the market. This is achieved by use of hardened steel and galvanized coating to resist corrosion.

AMP 10 Tooth 520 Front Sprocket for QS138 90H Electric Motor 1

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AMP Sprockets 10 Tooth (10T) 520 Pitch Front Sprocket for QS138 90H Electric Motor with Tapered Shaft

High performance sprocket made specifically to fit the tapered shaft QS138 90H Electric Motor. Sprocket comes complete with 5mm key bar. This sprocket works well with 520 standard and O-ring chains.

Tapered Bore: 21.5mm to 24.5mm Diameter
Keybar Width: 5mm

IMPORTANT (Instructions for Installation):

When attaching this sprocket to the tapered shaft DO NOT torque down the shaft nut with excessive force. Over torquing the shaft nut on the sprocket could cause the sprocket to crack due to over expansion down the tapered shaft. Fitment of the sprocket and shaft nut should just be snug. For best fitment it is recommended to use a bushing between the sprocket and bearing race, use thread lock on shaft nut and tighten shaft nut to no more than 10 ft/lbs of torque.

Supplier and manufacturer accept no liability for any sprockets that have cracked due to over torquing on tapered shafts during installation.

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