BEARINGS - Superior Essex

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Phone: 800.774.4643 • Fax: 800.768.9782 SNAP RINGS Avaiable in Beryllium Copper only. Crossover Chart Anderton N1400 IRR 3100 Rotor Clip SH Military 16624 Ring Size Shaft Diameter Free Diameter Thickness Precision Part # Decimal Fraction D Tolerance Thickness Tolerance ESR-5100-050 .500 1/2 .461 +.002 / -.005 .035 +/-.002 ESR-5100-062 .625 5/8 .579 +.005 / -.010 .035 +/-.002 ESR-5100-075 .750 3/4 .693 +.005 / -.010 .042 +/-.002 ESR-5100-081 .812 13/16 .751 +.005 / -.010 .042 +/-.002 ESR-5100-087 .875 7/8 .810 +.005 / -.010 .042 +/-.002 ESR-5100-100 1.000 1 .925 +.005 / -.010 .042 +/-.002 ESR-5100-112 1.125 1-1/8 1.041 +.010 / -.015 .050 +/-.002 ESR-5100-118 1.188 1-3/16 1.098 +.010 / -.015 .050 +/-.002 ESR-5100-137 1.375 1-3/8 1.272 +.010 / -.015 .050 +/-.002 ESR-5100-156 1.562 1-9/16 1.446 +.013 / -.025 .062 +/-.003 ESR-5100-162 1.625 1-5/8 1.503 +.013 / -.025 .062 +/-.003 ESR-5100-177 1.772 1.637 +.013 / -.025 .062 +/-.003 ESR-5100-187 1.875 1-7/8 1.735 +.013 / -.025 .062 +/-.003 ESR-5100-200 2.000 2 1.850 +.013 / -.025 .062 +/-.003 ESR-5100-212 2.125 2-1/8 1.964 +.015 / -.025 .078 +/-.003 ESR-5100-237 2.375 2-3/8 2.197 +.015 / -.025 .078 +/-.003 ESR-5100-255 2.559 2.377 +.020 / -.030 .078 +/-.003 ESR-5100-275 2.750 2-3/4 2.543 +.020 / -.030 .093 +/-.003 ESR-5100-287 2.875 2-7/8 2.659 +.020 / -.030 .093 +/-.003 ESR-5100-315 3.156 3-5/32 2.920 +.020 / -.030 .093 +/-.003 ESR-5100-334 3.346 3-11/32 3.092 +.020 / -.030 .093 +/-.003 ESR-5100-354 3.543 3.277 +.020 / -.030 .109 +/-.003 ESR-5100-375 3.750 3-3/4 3.468 +.020 / -.030 .109 +/-.003 ESR-5100-393 3.938 3-15/16 3.642 +.020 / -.030 .109 +/-.003 ESR-5100-475 4.750 4-3/4 4.458 +.020 / -.030 .109 +/-.003 ESR-5100-700 7.00 7 6.570 +.050 / -.130 .156 +/- .005 34 All sales are subject to and governed by the <strong>Essex</strong> Group, Inc. Standard Terms and Conditions of Sale.
Phone: 800.774.4643 • Fax: 800.768.9782 SHAFT GROUNDING BRUSHES A Leading Cause of Bearing Fatigue & Failure Helwig's Shaft Grounding Assembly is your effective, inexpensive safeguard against shaft currents -- a common damaging problem in DC motors, particularly those with static SCR drives. Static and induced currents in DC motor shafts usually seek a path to ground through the motor bearing. Over time, electrical pits can develop on bearing components. These pits can eventually produce deep, well-defined flutes on inner and outer races and balls or rollers. The result? Noise, vibration and premature bearing failure. Any motor, large or small, is susceptible. Shunts Shaft Currents Safely to Ground Installed on a motor’s drive and bearings, Helwig’s Shaft Grounding Assembly effectively shunts static and induced shaft currents away from the bearing to minimize the potential for problems. The Assembly’s constant-force spring ensures proper electrical contact between grounding brush and motor shaft at all times for continuous bearing protection. And the silver graphite grounding brush maintains the lowest contact drop, so shaft voltages stay at safe minimum levels near zero. Fast, Easy Brush Changes Cut Maintenance Time Changing grounding brushes is quick and simple with the Helwig Shaft Grounding Assembly. There's no fumbling with awkward coil springs and Screw-on caps. To replace a brush, simply squeeze the spring clip assembly, lift it up and tilt it back. Remove the old brush and insert a new one. Slide the spring clip back down until it snaps in place, and you're done. Designed for Direct Replacement of Existing Assemblies Helwig's Shaft Grounding Assembly replaces General Electric and other types of grounding brushes and holders currently used. And it's an essential replacement offering a lower voltage drop over makeshift “solutions” such as grounding straps and braids. Safeguard your motor bearings against shaft current damage. Install the proven, positive protection of Helwig Shaft Grounding Assemblies today. Electical arcing on inner ring raceway of a single row deep groove ball bearing Assembly Part Number: SGA-1 Replacement Brush Part Number: 10-372571 Electric Arcing Electric arcing is material melted locally to form fluting or groove like corrugations Causes Electrical current passes through the bearing and sparks generated melt the raceway. Electrical arcing on outer ringer raceway of a single row deep groove ball bearing Couter Measures Eliminate the flow of electric current through the bearing by grounding or insulating. All sales are subject to and governed by the <strong>Essex</strong> Group, Inc. Standard Terms and Conditions of Sale. 35
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BEARINGS - Superior Essex

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