Wheel Hub Bearings

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Rolling element bearings used to ensure smooth wheel rotation with minimal friction

The primary role of wheel hub bearings is to bear loads and offer precise guidance for hub rotation. They handle both axial and radial loads, making them crucial components. Traditional automotive wheel bearings typically consist of two sets of tapered roller bearings or ball bearings.Assembly, lubrication, sealing, and clearance adjustment of these bearings are conducted on the automobile production line.However, this structure poses challenges during assembly in car production plants, increases costs, and reduces reliability. Moreover, cars require cleaning, lubrication, and adjustment during maintenance at service points.

Specifications

Bearing Designation	Dimensions (mm)				N.W.	Corresponding Item No.			Seal Form
Bearing Designation	d	D	B	C	kg	SKF	FAG	KOYO	Seal Form
DAC124000183	12	40	18.3	18.3	0.11	C-00187			D
DAC20420030/29	20	42	30	29	0.17	565592 J22	539816		B
DAC205000206	20	50	20.6	20.6	0.21	156704			A
DAC205000206S	20	50	20.6	20.6	0.22		320104		A
DAC2184800206/18	21.8	48	20.6	18	0.25				A
DAC25520037	25	52	37	37	0.31	445539A	576467		B.C.E
DAC25520037S	25	52	37	37	0.31	FC12025			B.D.F
DAC25520042	25	52	42	42	0.34	25BWD01			BCE
DAC25520043	25	52	43	43	0.35				B
DAC255200206/23	25	52	20.6	23	0.33				B
DAC25550043	25	55	43	43	0.36			IR-2222	B.C
DAC25560032	25	56	32	32	0.34				D
DAC25560029/206	25	56	29	20.6	0.32				B
DAC254650027/24	25.4	65	27	24	0.6				A
DAC25720043	25	72	43	43	0.65				I
DAC27520045	27	52	45	45	0.36				B
DAC27530043	27	53	43	43	0.36				B
DAC27600050	27	60	50	50	0.56	27BWD01J	IR-8653		B.I

Basic Information

Ball bearing seals: DDU, ZZ, 2RS
Number of row: Double row
Material: Chrome steel GCr15
Precision: P0, P2, P5, P6, P4
Clearance: C0, C2, C3, C4, C5
Noise: V1, V2, V3
Cage material: steel

Applications

Gearbox, auto, reduction box, engine machinery, mining machinery, etc.