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Open Type High Precision Tapered Roller Bearing 757 / 752 Z1 / Z2 / Z3 / Z4

Open Type High Precision Tapered Roller Bearing 757 / 752 Z1 / Z2 / Z3 / Z4

Brand Name : LBLS
Model Number : 757 / 752
Certification : ISO9001
Place of Origin : Jiangsu , China
MOQ : 100pcs
Price : Negotiation
Payment Terms : L/C, T/T, Western Union
Supply Ability : 30, 000, 00 pcs per month
Delivery Time : Within 5-7 days after your payment
Packaging Details : Standard packaging or as customer's request
The Number of Rows : Single
Rolling Body : Roller Bearings
Material : Bearing Steel
Spherical : Non-Aligning Bearings
Load Direction : Thrust Bearing
Separated : Separated
Outer Dimension : Small and Medium-Sized (60-115mm)
Size : 82.5*161.92*47.625mm
Hs Code : 8482200000
Export Market : Globle
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757 / 752 Tapered Roller Bearing

Specifications :

Model Number

757 / 752





Bore Size


Outside Diameter





Bearing steel (gcr15)

Cage material

Nylon , steel , brass


C0 , C2 , C3 , C4 , C5

Seals TypeOpen

Precision Rating

P0, P6, P5, P4


As you requirement

Noise LevelZ1, Z2, Z3, Z4

Number of Row

Single Row


Utomotive, mill machinery, mining, metallurgy, plastics and machinery.

FeatureLow noise , long life , high precision


ISO9001: 2000

Brand Name



LBLS servise and design service

Delivery Detail

Within 5-7 days after your payment


Standard packaging or as customer's request


Free provide

Payment A

30% T/T deposit,the balance be paid before shipping

Payment B

100% L/C at sight

Payment C

Small order by express

Product detail description :

Tapered roller bearings are bearings that can take large axial forces (i.e., they are good thrust bearings) as well as being able to sustain large radial forces.

The inner and outer ring raceways are segments of cones and the rollers are also made with a taper so that the conical surfaces of the raceways and the roller axes if projected, would all meet at a common point on the main axis of the bearing.

This conical geometry is used as it gives a larger contact patch, which permits greater loads to be carried than with spherical (ball) bearings, while the geometry means that the tangential speeds of the surfaces of each of the rollers are the same as their raceways along the whole length of the contact patch and no differential scrubbing occurs. When a roller slides rather than rolls, it can generate wear at the roller-to-race interface, i.e. the differences in surface speeds creates a scrubbing action. Wear will degenerate the close tolerances normally held in the bearing and can lead to other problems. Much closer to pure rolling can be achieved in a tapered roller bearing and this avoids rapid wear.

The rollers are guided by a flange on the inner ring. This stops the rollers from sliding out at high speed due to their momentum.

The larger the half angles of these cones the larger the axial force that the bearing can sustain.

Tapered roller bearings are separable and have the following components: outer ring, inner ring, and roller assembly (containing the rollers and a cage). The non-separable inner ring and roller assembly is called the cone, and the outer ring is called the cup. Internal clearance is established during mounting by the axial position of the cone relative to the cup.

Metric tapered roller bearings follow the designation system defined by ISO 355.


In many applications tapered roller bearings are used in back-to-back pairs so that axial forces can be supported equally in either direction.

Pairs of tapered roller bearings are used in car and vehicle wheel bearings where they must cope simultaneously with large vertical (radial) and horizontal (axial) forces. Applications for tapered roller bearings are commonly used for moderate speed, heavy duty applications where durability is required. Common real world applications are in agriculture, construction and mining equipment, axle systems, gear box, engine motors and reducers.


Company's Profile

Over the past 10 years, Wuxi BLS Bearing Technology Co. Ltd. has grown to be the leading and fastest growing bearings brand in China and currently produces over xx million bearings in more than an xx sizes every year. It has the capacity to develop bearings from xx mm bore to xx mm outer diameter.

The product range includes ball bearings, tapered roller bearings, and double row angular contact (DRAC) bearings, cylindrical and spherical roller bearings, pillow bearings, plastic bearings, slewing bearings, auto bearing and non-standard bearings. The company is now also acting as sales agent for world known brands like SKF, NTN, FAG, NACHI, TIMKEN, NSK, INA and more.

BLS Bearings are widely used by 2 and 3 Wheelers, Cars, Trucks, Tractors, Electric Motors, Railway wagons, coaches & locomotives, Steel Mills, Heavy Engineering Plants, Bulldozers, Shovels, Tillers and Thermal Power Plants. The automotive and railway industries form the two largest client segments.

NBC has emerged as a leading exporter of bearings from China. Leading customers from all over the world have entrusted BLS with their critical product requirements.

A sense of loyalty and pride permeates the dynamic workforce – comprising equally of employees who have been with the company for decades, and young professionals eager to work in a vibrant work environment and a growth-oriented company.

The company’s financial growth is robust and it has set an ambitious growth path for itself with a sharp focus on exports, entry in new product segments and cultivation of people best practices. BLS is poised for a leap into the future with a commitment to act as a conscientious corporate citizen.

Product Tags:

Taper Roller Bearing


double tapered roller bearing

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