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M4 Ball Bearings

A ball bearing is a type of rolling-element bearing that uses spherical balls to maintain separation between two concentric rings, called races, allowing for smooth relative motion between machine parts while minimizing friction. The primary function of a ball bearing is to reduce rotational friction and support both radial (perpendicular to the shaft) and axial (along the shaft) loads. It achieves this by using at least two races to contain the balls and transmit the loads through them: typically, one race is fixed while the other rotates with the shaft or hub

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
NationalOntBall Bearings, Balls, Bearing MountsPlainM4 x 0.7m4x0.7 bearing set al/ak/ah3
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HayesCABall Bearings, Balls, Bearing MountsGrade 2Chrome PlatedM4ba x 5m4 ball bearing gr.25 chrome steel370
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EximS'poreBall Bearings, Balls, Bearing Mounts300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4 x 9spring ball plunger slotted s/sbright all hardened m4 x 9 mm2080
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OptimasILBall Bearings, Balls, Bearing MountsSteelPlainM45 x 100 x 2545x100x25 annular ball bearing e52100 steel w ith kluber grease (i)50
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OneMonroeNCBall Bearings, Balls, Bearing MountsPlainM40 x 80 x 2340x80x23mm double row sr/brg grv & holes in outer ring1
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OneMonroeNCBall Bearings, Balls, Bearing MountsPlainM40 x 80 x 30.240x80x30.2mm double row angular contact b/brg10
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AbabaCABall Bearings, Balls, Bearing MountsGrade 2PlainM4ba x 440m4 ball bearing 440-c s/s grade 25100
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OneMonroeMNBall Bearings, Balls, Bearing MountsPlainM402-bolt flange light duty for 40mm spherical od narrow inner fing ball bearing permanently lubricated5
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OneMonroeMNBall Bearings, Balls, Bearing MountsPlainM47lt 2-bolt flange w/groove for 47mm standoffd nir brg12
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OneMonroeMNBall Bearings, Balls, Bearing MountsPlainM47lt 2-bolt flange for 47mm standoffd nir brg p/lub501
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OneMonroeMNBall Bearings, Balls, Bearing Mounts300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4qrp 303 stainless 4mm dia x 20.22mm grip length 4.34mm ball height1
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OneMonroeMNBall Bearings, Balls, Bearing Mounts300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4qrp 303 stainless 4mm dia x 20.22mm grip length 4.34mm ball height3
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OneMonroeNCBall Bearings, Balls, Bearing MountsPlainM4040mm tapered roller bearing set 80mm 18mm40
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OneMonroeNCBall Bearings, Balls, Bearing MountsPlainM474-bolt flange for 47mm spherical od bearing with grease groove10
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OneMonroeNCBall Bearings, Balls, Bearing MountsPlainM473-bolt flange for 47mm spherical od bearing ductile iron10
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OneMonroeNCBall Bearings, Balls, Bearing MountsPlasticPlainM473-bolt thermo-plastic white flange brkt for 47mm standoffd brg with end cap26
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OneMonroeNCBall Bearings, Balls, Bearing MountsPlainM402-bolt flange thin profile for 40mm standoffd nir brg e=323
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OneMonroeNCBall Bearings, Balls, Bearing MountsNickel PlatedM472-bolt flange for 47mm spherical od bearing nickel plated with grease groove35
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OneMonroeNCBall Bearings, Balls, Bearing MountsPlasticPlainM472-bolt flange for 47mm spherical od bearing thermo-plastic white with end cap164
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OneMonroeNCBall Bearings, Balls, Bearing MountsPlasticPlainM474-bolt flange for 47mm spherical od bearing thermo-plastic white with end cap40
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OneMonroeMNBall Bearings, Balls, Bearing Mounts300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4qrp 303 stainless 4mm dia x 20.22mm grip length 4.34mm ball height1
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OneMonroeMNBall Bearings, Balls, Bearing Mounts300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4qrp 303 stainless 4mm dia x 20.22mm grip length 4.34mm ball height3
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OneMonroeMNBall Bearings, Balls, Bearing MountsPlainM402-bolt flange light duty for 40mm spherical od narrow inner fing ball bearing permanently lubricated5
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OneMonroeMNBall Bearings, Balls, Bearing MountsPlainM47lt 2-bolt flange w/groove for 47mm standoffd nir brg12
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OneMonroeMNBall Bearings, Balls, Bearing MountsPlainM47lt 2-bolt flange for 47mm standoffd nir brg p/lub401
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Jay-CeeMIBall Bearings, Balls, Bearing MountsM4m4 bearing set2
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ACFCABall Bearings, Balls, Bearing Mounts300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4M4 type 440 s/s hardened ball2144
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MMCCILBall Bearings, Balls, Bearing MountsSteelPlainM4.5precision ball din 5401 steel plain14368
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WDMBIABall Bearings, Balls, Bearing MountsM4bearing set sherex bs m4 1902207529092 5 (W0U0) (W050)30
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HBBOLTCABall Bearings, Balls, Bearing MountsM4t handle ball driver3
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MMCCILBall Bearings, Balls, Bearing MountsM4.5m4.5 precision ball din 5401inquire
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MMCCILBall Bearings, Balls, Bearing MountsSteelM4.762m4.762 precision ball din 5401 steelinquire
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MMCCILBall Bearings, Balls, Bearing MountsSteelM45m45 precision ball din 5401 steelinquire
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MSTCMABall Bearings, Balls, Bearing Mounts300 Stainless (A1,A2, 18-8,304,310 etc.)M4.54.5 mm din 5401 prec ball brng ss100
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MSTCMABall Bearings, Balls, Bearing Mounts300 Stainless (A1,A2, 18-8,304,310 etc.)M44 mm din 5401 prec ball brng ss206
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MSTCMABall Bearings, Balls, Bearing MountsSteelM44 mm din 5401 prec ball brng stl327
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MSTCMABall Bearings, Balls, Bearing MountsSteelM4.54.5 mm din 5401 prec ball brng stl558
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MSTCMABall Bearings, Balls, Bearing MountsM44 mm hss 2 fl ballmill 6mm shnk 39mm oal4
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Cal FastenrsCABall Bearings, Balls, Bearing MountsSteelM44mm grade 100 ball bearing 316 s.s. bxx-m04 bxx-m04500
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CenturyFLBall Bearings, Balls, Bearing MountsSteelChrome PlatedM4.5salem specialty ball 326 4.5mm chrome steel 52100 gr25 balll2000
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