4pcs/pack 6805-RD Bearing 25*37*6 mm 6805RD Dedicated Bike Bottom Bracket Bearings 6805 RD ( HT2 / BB51 ) MR25376 SC6805N RSUSD 13.22 / piece /lot 4

6902RS Bearing 10PCS 15x28x7mm 6902 2RS Chrome Steel Blue Sealed with Grease 6902LLU Cart Full Balls Bearing for Bike Hubs PivotUSD 16.91 / piece /lot 10

5PCS Bearing U Groove Bearing Stainless Bearing Steel Groove Bearing Track Guide Bearing Guide Bearing SG10 SG15 SG20 SG25USD 9.83 / piece /lot 5

MR95RS Bearing ABEC-5 10PCS 5*9*3 mm Miniature MR95-2RS Ball Bearings MR95 MR74 MR84 MR85 MR105 MR106 MR126 MR128 RS 2RS BearingUSD 10.54 / piece /lot 10

30206 Tapered Roller Bearings 30202 30203 30204 30205 30207 30208 30209 High Speed And Low Noise Thickness for Freight TrailerUSD 10.62 / piece /lot 1

5pcs MR Series MR52 MR63 MR84 MR105 MR74 MR115 MR105 MR126 MR149 ZZ Miniature Model Bearing Open Type Deep Groove Ball BearingsUSD 4.14 / piece /lot 5

10pcs Miniature Bearing Metal Sealed Multiple Sizes MR52zz 2x5x2.5 MR115 MR74 Chrome Steel High Speed Mechanical Equipment PartsUSD 5.65 / piece /lot 10

F695 F695-2RS Bearing 5x13x4mm Flanged Miniature F695-RS Deep Groove Ball Bearings F695RS for VORON Mobius 2/3 3D Printer 10PcsUSD 5.31 / piece /lot 10

1/10pcs ABEC-5 634 636 638 695 696 698 699 2RS RS Rubber Sealed Deep Groove Ball Bearing Chrome Steel P6 ABEC3 Miniature BearingUSD 1.83 / piece /lot 1

10PCS ABEC-5 689 9x17x4 mm 689-2RS Deep Groove Ball Bearings 9mm Inner Dia 17mm OD 5mm Bore Double Sealed Chrome Steel Z2 5pcsUSD 5.66 / piece /lot 10

Mugen Mbx8 / Mbx8eco Sealed Ball Bearing Kit Total Blue Sealed Rc 5x10x4mm 6x10x3mm 6x13x5mm 15x21x4mm 8x16x5mm Bearings 24 PcsUSD 15.37 / piece /lot 24

Ball bearings Deep Groove Ball Bearing 6300 6301 6302 6303 6304 6305 6306 6307 6308 6309 6310 6311 2Z ZZ RS 2RS Less Than 3000USD 6.52 / piece /lot 1

Product Details：

Quality grade: The quality grades of our bearings are ABEC-1, ABEC-3, ABEC-5, etc.

1. ABEC-1: The basic level of the national standard. The dimensional accuracy is less than ±0.05mm, and the speed is less than 500rpm, which is suitable for low-speed and low-requirement environments. Such as: low-speed transmission equipment, casters, baby carriages, toy cars, etc.

2. ABEC-3: National standard P0Z2 level or above. The dimensional accuracy is less than ±0.01mm, the hand feels smooth, the speed is less than 6000rpm, the noise is low, and the service life is long. Suitable for motors, toy models, automobiles, electric tools, pneumatic tools, telecommunications equipment, fitness equipment, sports equipment, etc.

3. ABEC-5: National standard P6 or above. The dimensional accuracy is less than ±0.005mm [can replace imports], the hand feels smooth, the speed is greater than 6000rpm, low noise, and long service life. It is suitable for high-speed motors, high-speed models, instruments, precision equipment, high-end toys and other fields with higher requirements.