604ZZ Outer Ring With U groove Stainless Bearings 4*12*4 mm ( 2 PCS ) Miniature Fishing Rod Reel Pulley U Groove Wheel Bearings

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4mm Bore Bearing with 12mm Pulley U Groove Track Roller Bearing 4x12x4mm – VXB Ball Bearings

U604/12 604UU 604 U604 U groove deep groove ball bearing 4x12x4mm Walking guide rail bearings - AliExpress

2 Pcs 2 inch U Groove Wheel, Stainless Steel Groove Wheel Pulley, Heavy Duty U Groove Caster for Wire Rope Rail, DIY, Load Capacity 840 lb

HEAVY DUTY MATERIAL - Made of 304 stainless steel, the U type groove wheel has high strength, good rigidity, and excellent mechanical properties. This

2 Pcs 2 Inch U Groove Wheel, Stainless Steel Groove Wheel Pulley, Heavy Duty U Groove Caster for Wire Rope Rail, DIY, Load Capacity 840 Lb

604zz Outer Ring With U Groove Stainless Bearings 4*12*4 Mm ( 2 Pcs ) Miniature Fishing Rod Reel Pulley U Groove Wheel Bearings - Bicycle Bearings - AliExpress

U Groove Pulley Bearing

MR52ZZ Bearing ABEC-7 (10PCS) 2*5*2.5 mm Miniature MR52 ZZ Ball Bearings L-520ZZ W52 MR52Z - AliExpress

U Groove Pulley Bearing

U Groove Pulley Bearing

U Groove Pulley Bearing

Taper Roller Bearing-, Linear Rail Guide, Thrust Ball Bearing from China Manufacturer.

U Groove Pulley Bearing