TIMKEN Bearing 67921D

The configuration of the TDO provides a wide effective bearing spread, making it ideal for applications in which overturning moments are a significant load component. TDO bearings can be used in fixed positions or allowed to float in the housing bore.
Material: Bearing steels
In Stock:
Photo may not represent actual item. See the technical specification for details.

Specifications of TIMKEN Bearing 67921D

TIMKEN Bearing 67921D

Specifications

Series

67900

Cup Part Number

67921D

Design Units

Imperial

Dimensions

D – Cup Outer Diameter

11.1250 in282.575 mm

C – Double Cup Width

3.5 in88.9 mm

Abutment and Fillet Dimensions

r – Cup Backface “To Clear” Radius1

0.03 in0.8 mm

Da – Cup Frontface Backing Diameter

10.87 in276.10 mm

Factors

K – Factor2

1.15

e – ISO Factor3

0.51

Y1 – ISO Factor4

1.33

Y2 – ISO Factor5

1.97

Cg – Geometry Factor6

0.135

Product description of TIMKEN Bearing 67921D

TIMKEN Bearing 67921D, It is Tapered Roller Bearings - Double Tapered Cup - Imperial. Timken® tapered roller bearing assemblies are precisely designed to manage both radial and axial loads, even in the most unforgiving conditions.

Timken offers the most extensive line of tapered roller bearings available anywhere in the world.

TIMKEN Bearing 67921D, It is Tapered Roller Bearings - Double Tapered Cup - Imperial. Tapered roller bearings are uniquely designed to manage both thrust and radial loads on rotating shafts and in housings. We manufacture nearly 26,000 tapered roller bearing combinations – in single, double and four-row tapered roller bearing configurations. Customized geometries and engineered surfaces can be applied to these tapered roller bearings to further enhance performance in demanding applications.

Wind energy is an industry in which bearings play a significant rale in defining and improving reliability. Proper bearing design and application review are key factors in helping to increase wind turbine availability and reduce maintenance costs.

For main shaft designs in both gear and gear-less wind turbines, TIMKEN Bearing 67921D, It is Tapered Roller Bearings - Double Tapered Cup - Imperial. Which provide features that address concerns related to:
+ Bearing life capacity
+ Stress and roller load management+ Roller skidding and smearing
+ System stiffness and turbine assembly

As the wind energy industry evolves toward multi-megawatt onshore and offshore turbines, the need for sustainable bearings solutions increases. This is where Timken's expertise comes in.

Now, the company that invented a tapered roller bearing introduces its new series of tapered roller bearings in ultra-large-size ranges to the wind energy market.

Ideal for original equipment manufacturers developing multi-megawatt wind turbine designs, this series of bearings - called the Timken Ultra Wind Tapered Roller Bearings - optimizes drive train simplicity,reliability and performance. It features a customized main shaft bearing system approach that combines a double-row or two TIMKEN Bearing 67921D, It is Tapered Roller Bearings - Double Tapered Cup - Imperial, single-row tapered roller bearings, seals,lubrication and condition monitoring.

Timken Ultra Wind tapered roller bearing features and benefits include:
+ Saving on capital equipment costs with the simplified drive train design
+ Having the highest bearing life ratings in the industry as certified by Germanic Lloyd+ Pres-setting the internal clearance to facilitate ease and accuracy of the assembly
+ Ensuring the per-loaded bearing has superior stiffness to manage the motion of the main shaft and rotor
+ Designing the bearing raceway profiles to control maximum stress levels to provide greater product durability
+ Optimizing the cage design for capacity and roller retention, including both steel and polymer configurations

The Timken Ultra Wind tapered roller bearing is part of a main shaft system solution that takes into consideration the bearing's "total health" and can be customized to suit a customer' s specific design arrangements.Bearing designs can accommodate most styles of wind turbine designs with variable bolt circles, shaft-mounted and shaft-less designs, rotating inner and outer, gear and gear-less wind turbines.

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Literature & catalogs

TIMKEN -LUBRICATION
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TIMKEN -TYPE- TDI
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TIMKEN-TAPERED ROLLER BEARING CAGES
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TIMKEN-TYPE- TS
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