TIMKEN Bearing 3878A

This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft.
Material: Bearing steels
In Stock:
Photo may not represent actual item. See the technical specification for details.

Specifications of TIMKEN Bearing 3878A

TIMKEN Bearing 3878A

Specifications

Series

3800

Cone Part Number

3878A

Design Units

Imperial

Cage Type

Stamped Steel

C1 – Dynamic Radial Rating (Two-Row, 1 million revolutions)1

48600 lbf216000 N

C90(2) – Dynamic Radial Rating (Two-Row, 90 million revolutions)2

12600 lbf56100 N

Dimensions

d – Cone Bore

1 7/16 in36.513 mm

B – Cone Width

1.1875 in30.163 mm

Abutment and Fillet Dimensions

R – Cone Backface “To Clear” Radius3

0.14 in3.6 mm

da – Cone Frontface Backing Diameter

1.85 in47 mm

db – Cone Backface Backing Diameter

2.13 in54 mm

Ab – Cage-Cone Frontface Clearance

0.11 in2.8 mm

Aa – Cage-Cone Backface Clearance

0.04 in1 mm

a – Effective Center Location4

-0.32 in-8.1 mm

Basic Load Ratings

C90 – Dynamic Radial Rating (90 million revolutions)5

7240 lbf32200 N

C1 – Dynamic Radial Rating (1 million revolutions)6

27900 lbf124000 N

C0 – Static Radial Rating

33200 lbf148000 N

Ca90 – Dynamic Thrust Rating (90 million revolutions)7

4980 lbf22200 N

Factors

K – Factor8

1.45

Cg – Geometry Factor9

0.0873

Product description of TIMKEN Bearing 3878A

TIMKEN Tapered Roller Bearings - Single Cones - Imperial TIMKEN Bearing 3878A, Single-row tapered roller bearings are the most basic and widely used, consisting of a cone assembly and a cup. Timken patented the first in 1898 and today offers the world's widest variety in inch and metric sizes.Timken® tapered roller bearing assemblies are precisely designed to manage both radial and axial loads, even in the most unforgiving conditions.

TIMKEN Tapered Roller Bearings - Single Cones - Imperial TIMKEN Bearing 3878A, THE TIMKEN EXPERIENCE

With Timken", you get friction management and power-transmission expertise, precision manufacturing capabilities and world-class engineering. It's all part of the value that timken brings to the wind industry, including:
Advanced solutions that work:
We collaborate with turbine and gear drive designers to explore the wide range of operating parameters commonly experienced by wind turbines. Using our proprietary engineering system - Timken Syber Wind Bearing System Analysis - we can identify enhanced friction- management solutions for each application. Syber Analysis improves gearbox design, predicts potential damage and reduces product development time and costs.

Total system approach: We work with customers to apply the right product for the right application. Our solutions are designed to improve reliability and performance of main shaft and gear drive applications while helping to increase productivity and reduce cost of ownership. Unparalleled engineering expertise:
We're passionate about developing technical solutions and services that enable our customers' equipment to run harder, faster and longer with enhanced durability and superior performance.
We have nearly a century of unmatched expertise in mechanical power transmission, anti-friction bearing design of TIMKEN Tapered Roller Bearings - Single Cones - Imperial TIMKEN Bearing 3878A, trichology. metallurgy. Clean steel making, precision manufacturing,metro-logy and engineered surfaces.

Unique global network:
We simplify logistics with a global manufacturing footprint that allows us to supply most products locally.With nearly 150 technology, manufacturing,sales and distribution facilities in 26 countries and territories, we are committed to meeting customer needs anywhere, any time.

Valuable life cycle perspective: Throughout the entire bearing life cycle, Timken is thereto help maximize equipment performance. For turbine operators, Timken provides a full range of support to maximize equipment performance and reduce the total cost of ownership, from replacement bearings and upgraded solutions to re-manufacturing services, condition monitoring and lubrication systems.

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Substitute products of TIMKEN Bearing 3878A

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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Videos

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