Wheel hub

Short Description:

The traditional automobile wheel bearings are composed of two sets of tapered roller bearings or ball bearings. The mounting, oiling, sealing and clearance adjustment of the bearings are all carried out on the automobile production line.This kind of structure makes it difficult to assemble in the automobile production plant, high cost, poor reliability, and when the automobile is maintained in the maintenance point, it also needs to clean, grease and adjust the bearing.Wheel hub bearing unit is in the standard angular contact ball bearings and tapered roller bearings, on the basis of it will be two sets of bearing as a whole, has the assembly clearance adjustment performance is good, can be omitted, light weight, compact structure, large load capacity, for the sealed bearing prior to loading, ellipsis external wheel grease seal and from maintenance etc, and has been widely used in cars, in a truck also has a tendency to gradually expand the application.

Product Detail

Product Tags

Bearing Detail

Item No. DU5496
Wheel hub bearing Wheel hub bearing
Seals Type: DU ZZ 2RS
Material Chrome steel GCr15
Precision P0,P2,P5,P6,P4
Clearance C0,C2,C3,C4,C5
Cage type Steel cage
Ball Bearings Feature Long-life with high quality
Low-noise with strict controlling the quality of JITO bearing
High-load by the advanced high-technical design
Competitive price, which has the most valuable
OEM service offered, to meet the customers requirements
Application mill rolling mill rolls, crusher, vibrating screen, printing machinery, woodworking machinery, all kinds of industry
Bearing Package Pallet,wooden case,commercial packaging or as customers’ requirement

Packaging & Delivery

Packaging Details Standard exporting packing or according to the customer’s requirements
Package Type: A. Plastic tubes Pack + Carton + Wooden Pallet
B. Roll Pack + Carton + Wooden Pallet
C. Individual Box +Plastic bag+ Carton + Wooden Palle

Lead Time 

Quantity(Pieces) 1 – 300 >300
Est. Time(days) 2 To be negotiated


1.Automobile wheel bearing structure:
The largest number of wheel bearings for cars used in the past was the use of single row tapered roller or ball bearings in pairs. With the development of technology, car hub units have been widely used in cars. The range and use of hub bearing units is growing, and today it has reached the third generation: the first generation consists of double row angular contact bearings. The second generation has a flange for fixing the bearing on the outer raceway, which can be simply fixed to the axle by a nut. Make the maintenance of the car easier. The third-generation hub bearing unit is equipped with a bearing unit and an anti-lock brake system ABS. The hub unit is designed with an inner flange and an outer flange, the inner flange is bolted to the drive shaft, and the outer flange mounts the entire bearing together.

2.Automotive wheel bearing features:
The hub bearing unit is developed on the basis of standard angular contact ball bearings and tapered roller bearings. It integrates two sets of bearings and has good assembly performance, can eliminate clearance adjustment, light weight, compact structure and load capacity. Large, sealed bearings can be pre-loaded with grease, omitting external hub seals and maintenance-free. They have been widely used in cars, and there is a tendency to gradually expand applications in trucks.

Type No. Size (mm)dxDxB Type No. Size (mm) dxDxB
DAC20420030 20x42x30mm DAC30600037 30x60x37mm
DAC205000206 20x50x20.6mm DAC30600043 30x60x43mm
DAC255200206 25x52x20.6mm DAC30620038 30x62x38mm
DAC25520037 25x52x37mm DAC30630042 30x63x42mm
DAC25520040 25x52x40mm DAC30630342 3063.03x42mm
DAC25520042 25x52x42mm DAC30640042 30x64x42mm
DAC25520043 25x52x43mm DAC30670024 30x67x24mm
DAC25520045 25x52x45mm DAC30680045 30x68x45mm
DAC25550043 25x55x43mm DAC32700038 32x70x38mm
DAC25550045 25x55x45mm DAC32720034 32x72x34mm
DAC25600206 25x56x20.6mm DAC32720045 32x72x45mm
DAC25600032 25x60x32mm DAC32720345 3272.03x45mm
DAC25600029 25x60x29mm DAC32730054 32x73x54mm
DAC25600045 25x60x45mm DAC34620037 34x62x37mm
DAC25620028 25x62x28mm DAC34640034 34x64x34mm
DAC25620048 25x62x48mm DAC34640037 34x64x37mm
DAC25720043 25x72x43mm DAC34660037 34x66x37mm
DAC27520045 27x52x45mm DAC34670037 34x67x37mm
DAC27520050 27x52x50mm DAC34680037 34x68x37mm


If the clutch release bearing fails to meet the above requirements, it is deemed to be malfunctioning. After a failure occurs, the first thing to judge is which phenomenon belongs to the damage of the release bearing. After the engine is started, lightly step on the clutch pedal. When the free stroke is just eliminated, there will be a “rusting” or “squeaking” sound. Continue to step on the clutch pedal. If the sound disappears, it is not a release bearing problem. If there is still a sound, it is a release ring.
When checking, you can remove the clutch bottom cover, and then depress a little accelerator pedal to slightly increase the engine speed. If the noise increases, you can observe whether there is sparks. If there are sparks, it means that the clutch release bearing is damaged. If the sparks burst out one after another, it means that the release bearing ball is broken. If there is no spark, but there is a metal cracking sound, it means excessive wear.


SOLUTION– At the beginning, we will have a communication with our customers on their demand, then our engineers will work out an optimum solution based on the customers’ demand and condition.
LOGISTIC– Normally, our bearings will be sent to the customers by ocean transportation due to its heavy weight, airfreight, express is also available if our customers need.
WARRANTY– We warrant our bearings to be free from defects in material and workmanship for a 12 months period from the shipping date, this warranty is voided by non-recommended use, improper installation or physical damage.


Q: What’s your after-sales service and warranty?
A: We promise to bear the following responsibility when defective product is found:
1.12 months warranty from the first day of receiving goods;
2.Replacements would be sent with goods of your next order;
3.Refund for defective products if customers require.
Q: Do you accept ODM&OEM orders?
A: Yes, we provide ODM&OEM services to worldwide customers, we are able to customize housings in different styles, and sizes in different brands, we also customize circuit board & packaging box as per your requirements.

Q: How to place orders?
A: 1. Email us the model, brand and quantity, consignee information, shipping way and payment terms;
2.Proforma Invoice made and sent to you;
3.Complete Payment after confirming the PI;
4.Confirm Payment and arrange production.

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