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217-2731: 0.500
217-3875: 0.500
217-2742: 15mm ID x 28mm OD x 7mm WD (Radial Bearing)
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Ball Bearings

Bearings constrain relative motion and reduce friction between moving parts.

WestCoast Products offers all the bearings most commonly used by FIRST ® teams, and also replacement bearings for all the "odd sized" bearings used in VEXpro and WCP gearboxes.

Note: Please be aware that Thunderhex bearings (217-4006 & 217-4270) are 13.75mm round bearings, designed to fit a Thunderhex shaft. 

$2.49

Intro to ThunderHex

ThunderHex Stock works in all applications where 1/2" Hex Shaft will work and also includes rounded corners. These rounded corners allow the shaft to pilot inside a 13.75 mm round (ThunderHex) Bearing instead of a standard 1/2" Hex Bearing. This eliminates some difficult manufacturing tolerances and results in a MUCH smoother end result. Simply put, ThunderHex Bearings are the best way to create smooth-running hex shafts, and ThunderHex Stock helps you accomplish this without a lathe.
Also, since you're essentially putting a round peg in a round hole, no more struggling to align the hex of your shaft with the hex hole of your bearing.
 
P/N Description Material CAD Drawings Weight
217-5830 0.302" (1/4" ThunderSquare) ID x 0.875" OD x 0.280" WD (Flanged Bearing) - STEP PDF 0.040 lbs
217-5829 10.25mm (3/8" ThunderHex) ID x 0.875" OD x 0.280" WD (Flanged Bearing) - STEP PDF 0.040 lbs
217-4006 13.75mm (1/2" ThunderHex ID) x 1.125" OD x 0.313" WD (Flanged Bearing) - STEP PDF 0.050 lbs
217-4270 13.75mm (1/2" ThunderHex) ID x 1.125" OD x 0.313" WD (Radial Bearing) - STEP PDF 0.048 lbs
           
217-2735 0.375" Hex ID x 1.125" OD x 0.313" WD (Flanged Bearing) - STEP PDF 0.060 lbs
217-3875 0.500" Hex ID x 1.125" OD x 0.313" WD (Flanged Bearing v2) - STEP PDF 0.052 lbs
           
WCP-0072 0.250" ID x 0.500" OD x 0.188" WD (Flanged Bearing) - STEP PDF 0.010 lbs
WCP-0042 0.250" ID x 0.625" OD x 0.196" WD (Flanged Bearing) - STEP PDF 0.012 lbs
217-2733 0.375" ID x 0.875" OD x 0.280" WD (Flanged Bearing) - STEP PDF 0.031 lbs
217-2732 0.375" ID x 1.125" OD x 0.313" WD (Flanged Bearing) - STEP PDF 0.063 lbs
217-2731 0.500" ID x 1.125" OD x 0.313" WD (Flanged Bearing) - STEP PDF 0.058 lbs
217-2789 0.750" ID x 1.375" OD x 0.437" WD (Flanged Bearing) - STEP PDF 0.091 lbs
           
217-3246 0.188" ID x 0.500" OD x 0.196" WD (Radial Bearing) - STEP PDF 0.010 lbs
217-2788 0.250" ID x 0.375" OD x 0.125" WD (Radial Bearing) - STEP PDF 0.010 lbs
217-3489 0.250" ID x 0.500" OD x 0.188" WD (Radial Bearing) - STEP PDF 0.010 lbs
WCP-0212 0.250" ID x 0.750" OD x 0.282" WD (Radial Bearing) - STEP PDF 0.022 lbs
217-3239 0.375" ID x 0.875" OD x 0.281" WD (Radial Bearing) - STEP PDF 0.030 lbs
217-3337 0.500" ID x 0.875" OD x 0.281" WD (Radial Bearing) - STEP PDF 0.026 lbs
217-3109 0.500" ID x 1.125" OD x 0.313" WD (Radial Bearing) - STEP PDF 0.050 lbs
           
WCP-0037 3.5" ID x 4" OD x .25" WD (X-Contact Bearing) - STEP PDF 0.168 lbs
           
217-2742 15mm ID x 28mm OD x 7mm WD (Radial Bearing) - STEP PDF 0.039 lbs
217-2741 17mm ID x 26mm OD x 5mm WD (Radial Bearing) - STEP PDF 0.023 lbs
WCP-0027 25mm ID x 37mm ID x 7mm WD (Radial Bearing) - STEP PDF 0.046 lbs
WCP-0036 80mm ID x 100mm OD x 10mm WD (Radial Bearing) - STEP PDF 0.346 lbs
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