• Category: Spherical roller bearing
• Inner diameter: 260 mm
• Outer diameter: 440 mm
• Width: 180 mm
• Net weight: 111 KG/pc

The above is for reference only, and the actual parameters are subject to material.

Feature of spherical roller bearing

Spherical roller bearings are self-aligning double row roller bearings. The roller elements are spherical. Inner and outer rings have a concave raceway. The inner ring has two flanges which guides the cage guided roller elements whereas the outer ring is flange free. Spherical roller bearings are particularly suitable if high radial shock loads occur and misalignment of the axis must be compensated. Their axial load carrying capacity of spherical roller bearings is small.

E design	CC design	CA design	W33
The bearings of this design have symmetrical rollers, two hardened window-type steel cages centred on the inner ring, a flangeless inner ring and a floating guide ring between the two roller rows.	With symmetrical rollers, two window-type steel cages which are inner ring centred via a floating guide ring between the two roller rows.	With symmetrical rollers. The inner ring centred guide ring centres the one piece, double pronged machined cage of brass or steel. The inner ring has retaining flanges.	Annular groove and three lubrication holes in outer ring

Specifications of some spherical roller bearings

TBB Bearing Provision is a professional bearing import and export company with over 10 years of experience in this field.

Our brand is TBB which stands for To Be the Best. It is and will always be our company philosophy, whether regarding bearing quality, on time delivery, or sales supporting service; we will always try every effort to be the best among your bearing suppliers.

TBB Target

To provide customer satisfactory product and service,

To provide TBB Bearing to worldwide OEM market and aftermarket.

TBB Two Jobs

Constantly optimizing TBB suppliers’ management system.

Constantly optimizing TBB customer service system.

TBB Supplier Management

Based on our rich experience in Chinese bearing, we established TBB supplier management system, and have around 3000 bearing manufacturers data; among which over 60 manufacturers we have cooperated for a long time; our professional engineer team will audit every cooperated supplier in the very start and also evaluate yearly.

TBB Customer Service

TBB’s cooperated more than 5 years’ customers reached 80%.

TBB provide various kinds of bearings, with a size range from 3mm to 4000mm.

TBB complaint rate remains less than 2%, which will always be handled within 7 days.

TBB value the accuracy of delivery time, with a rate of 98%.

Since 2009 year, we have built up long term cooperation with professional authoritative bearing test centers working with the advanced inspection facilities and scientific guidance, to ensure every customer receive well performance goods.

TBB Reinvestment, we use 10% yearly profit as TBB reinvestment

We set up multiple sales platforms to assure stable and long term development.

We set up advanced management system to assure stable product chain, and keep competition advantage.

Our warehouse is located in Shanghai, and is operated under a complete logistic system, which ensures our reliable and efficient product delivery.

Company culture

We pay attention to every partner, about their growth and development;

We pay attention to every staff, about their growth and development.

TBB Product Ranges

Standard Bearings including

Deep groove ball bearings

Tapered roller bearings

Cylindrical roller bearings

Spherical roller bearings

Spherical plain bearings

Pillow blocks

Adapter sleeves

Special field bearings including

EMQ bearings

Slewing bearings

Railway bearings

Machine Tool Spindle Bearings

Wind power bearings

TBB Case Study

Product: Big size Tapered roller bearing

Application: Bonfiglioli Wind Turbines Gearbox

Customer Background: Original bearing supplier was America Timken, standard design with special raw material produced by Timken

TBB Material solution: Raw material supplier--XINGCHENG STEEL, top bearing steel manufacturer in China Raw material is produced by XINGCHENG STEEL based on TBB request, with strict control of Ti, H, O elements.

TBB Design: (1) Bearing rings and rollers are with convexity design, have control of convexity value. Greatly increase bearing life.

(2) Use Romax Designer, simulate actual application conditions, calculate bearing life and load capacity, improve product performance.

Sample Test: 18 months,2 times samples submition,2 times bench test, test is finished after certain time, TBB samples were in good condition, samples are homologated.

Final Result: From January 2016 TBB started bearing supply to Bonfiglioli, yearly order amount about USD 1,200,000

Hope we will have the opportunity to be on your service!

Thanks for your time!