SKF produces tapered roller bearings of different types and sizes to suit a wide variety of applications. SKF bearings can be summarized as follows:

– Tapered roller bearings in a row
– Tapered roller bearings in a row, matched
– Tapered roller bearings in two rows
– Tapered roller bearings to four rows

These bearings are described in four separate chapters.

SKF also manufactures packages bearing protected, and pre-lubricated, based on tapered roller bearings

– Combinations-wheel bearings for cars
– Combinations-wheel bearings for trucks
– Cartridges tapered roller bearings for rail vehicles.

Characteristics of design

The tapered roller bearings present on the inner and outer rings of tapered roller between which are willing tapered roller. If the conical surfaces were extended, they converge towards a single point on the axis of rotation. Their design makes them particularly suited to the combined loads (radial and axial). The axial load capacity bearings is determined to a large extent by the contact angle α; more α, the greater the axial load capacity is important. The calculation factor e indicates an order of magnitude for this angle: the more the value of e, the greater the contact angle is more important and axial loads eligible are high.

The tapered roller bearings are generally separable, ie that the cone formed by the inner ring and the whole cage-rollers can be mounted separately from the pan (outer ring).

The tapered roller bearings SKF have a contact profile said logarithmic which ensures optimum distribution constraints between contacts roll / path. The design specific surfaces slip shoulder guidance and broad faces rolls improve the training of lubricant film at the end of roller contacts / shoulder. The bearings are more reliable and less sensitive to the spill.

ina  fag Cylindrical roller bearings consist of Cylindrical roller bearings with cage ,Low-friction cylindrical roller bearings,High precision cylindrical roller bearings,Full complement cylindrical roller bearings,Cylindrical roller bearings with snap ring grooves.

Cylindrical roller bearings with cage(fag bearings)
Single row cylindrical roller bearings with cage are units comprising solid inner and outer rings together with cylindrical roller and cage assemblies. The outer rings have rigid ribs on both sides or are without ribs, the inner rings have one or two rigid ribs or are designed without ribs. The cage prevents the cylindrical rollers coming into contact with each other during rolling.

The cylindrical roller bearings are very rigid, can support high radial loads and, due to the cage, are suitable for higher speeds than the full complement designs. Bearings with suffix E have a larger roller set and are thus designed for extremely high load carrying capacity.

The bearings can be taken apart and can therefore be fitted and dismantled more easily. Both bearing rings can therefore have an interference fit.

Single row cylindrical roller bearings with cage are available as non-locating, semi-locating and locating bearings.

Low-friction cylindrical roller bearings
Low-friction cylindrical roller bearings LSL and ZSL are single row, self-retaining and correspond to dimension series 23. The bearings have solid outer rings with two ribs, while the inner rings have one rib. The inner ring can be removed and this gives easier fitting of the bearings. Disc cages or spacers prevent the cylindrical rollers coming into contact with each other during rolling.

High precision cylindrical roller bearings
Cylindrical roller bearings of this type are double row precision bearings for machine tools. They allow radially rigid, high precision bearing arrangements and are mainly used for the radial support of main spindles.

The bearings comprise solid outer rings without ribs, solid inner rings with three ribs and cylindrical roller and cage assemblies with solid brass cages. For optimum setting of the radial internal clearance, the inner ring has a tapered bore with a taper of 1:12. The cylindrical roller bearings can be dismantled and are therefore easier to fit and remove. Both bearing rings can therefore have an interference fit.

Full complement cylindrical roller bearings(ina bearings)
Full complement cylindrical roller bearings have solid inner and outer rings and rib-guided cylindrical rollers. Since these bearings have the largest possible number of rolling elements, they have extremely high radial load carrying capacity, high rigidity and are suitable for particularly compact designs. Due to their kinematic conditions, however, they cannot achieve the high speeds that are possible when using cylindrical roller bearings with cage.

Full complement cylindrical roller bearings are available as non-locating, semi-locating and locating bearings and in single and double row designs.

Cylindrical roller bearings with snap ring grooves
Cylindrical roller bearings with snap ring grooves are full complement, self-retaining units comprising solid inner and outer rings, rib-guided cylindrical rollers and sealing rings.

The outer rings have grooves for retaining rings. The inner rings are axially split, 1 mm wider than the outer rings and are held together by a steel strip that is rolled into place.

Locating bearings

Cylindrical roller bearings with snap ring grooves are locating bearings. These bearings are highly rigid and can support axial forces in both directions as well as high radial forces.

Due to the full complement design of these bearings, they have the largest possible number of rolling elements and thus extremely high basic dynamic and static load ratings. Due to their kinematic conditions, however, they cannot achieve the high speeds that are possible when using cylindrical roller bearings with cage.

Bearings for cable sheaves

Due to the grooves in the outer ring, the bearing rings can be axially located with ease. The bearings are therefore very suitable in bearing arrangements for cable sheaves.

we can surply most of ina fag cylindrical  roller bearings in stock for best pirce   welcome you inquiry  your sincerely jerri li  cnbearing@126.com

Schaeffler Group (fag bearings)has won control of Continental AG with a sweetened offer that values the German tiremaker to 12.1 billion euros ($ 17.9 billion) and creates the largest car parts manufacturer.

After weeks of tough negotiations, German tyre manufacturer Continental finally said “yes” on Thursday to advance Schaeffler compatriot create a new giant auto parts.

Schaeffler, the second largest manufacturer of ball bearings, pay 75 euros per share, 7 percent higher than its initial offer, and buy a game that will not exceed 49.99 percent for four years. Continental CEO Manfred Wennemer, who opposed the offer, left, Hanover-the company said today.

Schaeffler supply, which was raised from 70.12 euros, is 39 percent higher than Continental around July 11, the last trading day before the Financial Times and Frankfurter Allgemeine Zeitung newspaper reported that an offer was likely.

The new offer values Continental, which is still digesting a major acquisition, he did last year, more than 12 billion euros, nearly 40 percent more than it was before Schaeffler unsolicited made its initial offer in July.

Schaeffler Detlef Sieverdingbeck spokesman said the company would “ gladly have continued to work with Wennemer.”

Continental shares are trading at 11 times estimated earnings, in line with the average of 16 European car-parts, according to data compiled by Bloomberg. The stock is more expensive than that of Clermont Ferrand, France-based Michelin & Cie, Europe’s largest tiremaker, which has a price-earnings of 8.4.

 the largest tapered roller bearing manufature in the world TIMKEN bearing company designed a bearing solution for Qinghai Ping’an High Precision Aluminum

Timken offers a range of friction management and power transmission, including tapered, spherical, cylindrical and needle bearings for industrial applications. 

The Timken Company has received an order in the bottom of multi-million dollar range to provide a big door tapered roller bearings for a new high-precision aluminum rolling mill under construction in China’s northwest.

Timken designed a solution with the Qinghai Ping’an high-precision aluminum, which is building the new plant Ping’an, the province of Qinghai. The customer will install Timken bearings in the deployment of neck position of the hot bands.

Four-line timken bearings provide maximum capacity in minimum space, combining the qualifications high radial load capacity or thrust and direct / indirect variables assembling tapered roller bearings. 

Their main application is the deployment on the neck of rolling mill equipment. The four rows bearings are supplied as pre-assembled series matched with all elements identified to ensure proper installation sequence.

TQO (Straight Bore Four ranks Assembly)
TQO bearings are mounted directly and composed of two races domestic double, two singles and a double external course, with a spacer inner and outer race two spacers.

The slots in the inner ring spacer permit movement of lubricant and scope of room for the deployment of the neck. The inner ring spacers are strengthened in order to minimize wear face.

Design Attributes

Two double cones, two cups single and a double-sided cone with a spacer cup and two spacers.
Spacers have cracks or holes for lubrication.
Cone spacers are strengthened to reduce face to wear.
Numérotés series to ensure proper installation sequence.
  
Applications
From low and average speed rolling

TQOW (Straight Bore with cone face lubrication slots)
TQOW bearings are similar to TQO bearings. When the net and / or filling rings do not have slotting lubrication, they are provided on the face of the inner harbour of the race.

Design Attributes
Similar to TQO, except that the cone had faced the lubrication of slots at each side.
Two double cones, two cups single and a double-sided cone with a spacer cup and two spacers.
Cone spacers are strengthened to reduce face to wear.
Numérotés series to ensure proper installation sequence.
  
Applications

From low and average speed rolling

TQIT (Tapered Bore Four ranks Assembly)

Type TQIT bearings have a conical bore which is offset and continues in the interior races. This allows for a fit on the rolls of safeguarding high-speed factories, where losing an inner ring worthy of a right bore the rotation because of excessive wear neck. 

The indirect consequences of mounting the rotation increases the pairs overall spread of the port, providing optimum stability rigidity and roll.

Design Attributes

Two single-bore conical cones, a conical bore double cone, four cups and one cup three spacers.
Front single face cones and the two sides of the double cone are extended to contact each other.
Cone bore conical are matched to type continues through the cones.
Lubrication delivered in three cup spacers.
Preset, with assemblies, with serial numbers to ensure proper installation. 
  
Applications
Roll neck of the high-speed rolling

timken bearings-Double or two rows of tapered roller dual function and two cups single cones. They are available in a variety of configurations for industrial and automotive applications.

TDI (two rows Double-inner ring)

TDI bearings have one piece double inner and outer single and two races are generally provided with a spacer race outside as a pre-set assembly. The bearing can be used in fixed positions on the shaft rotation. Housing to run the application, it can be used for floating on the tree in the parking lot. 
TDI bearings are sometimes used on rotational axis applications where a loose fit is necessary in order to facilitate its removal.

Design Attributes

Double Cone and two cups single, with or without a cup spacer.
Furnished as a pair of reunion.
Cup field to adapt. 
  
Applications

Gear reduction units
Cranes
Calendar rolls
The Industrial Machinery

TDO (Two-Double-Row outside Race)

The configuration of TDO provides a wide dissemination effective bearing, making it ideal for applications in moments of reversal that are an important component charge. TDO bearings can be used in fixed positions or allowed to float in the bore of housing.

Design Attributes

Double side and two single cones, with or without a spacer.
When struts are used on the east provided as a preset, with assembly.
Cup features groove and lubrication holes in the DOM.
Entretoise available with or without lubricant grooves and holes. 
  
Applications

Heavy, gear Discs
Various configurations industrial

TNA (two rows non-adjustable)

TNA bearings are similar to the TDO, but the inner ring close faces are extended to abut and eliminate the need for an inner ring spacer. Comes with a built-in permission to give a normative, these bearings provide a solution for many fixed or floating bearing applications where simplicity of installation is necessary.

Design Attributes

Double side and two single cones.
Internal bearing control by extending the front face of cones to contact each other.
SW variation features a bore chamfers at the front faces of two cones to form a single groove lubrication.
SE has a variation backface coast to accommodate the design radial joined lip or the stamp of closure. 
  
Applications

Sheaves
Crane jets
Oil field of jets rig
Applications where the two levels of line are pre-requisites

The most basic and widely used conical support, the only type of line is made up of the cone assembly and the cup. It is generally equipped like a pair opponent. During mounting hardware, single row bearings can be adjusted for Demining (endplay) or pre-condition to optimize performance. 

A row tapered roller have positive roll that ensures alignment true rolling motion and creates a “force of seats” which pushes the roll against the large cone coast. This force seats prevents bias rolls off the summit, which would favourably located and aligned against the large cone coast.

TS (Pressed Steel)
This is the most basic and most widely used type of tapered roller bearing.  It consists of two main separable parts: the inner race assembly and the outer race.  It is typically mounted in opposing pairs on a shaft. Applications :Vehicle front wheels  Differential and pinion configurations  Conveyor rolls  Machine tool  spindles  Trailer wheels

TS (Pin Type)
The pin type design increases the load-carrying capacity of TS bearings by removing cage bridges (leaving more room for rollers) and featuring longer rollers.

The pin type cage consists of two rings, one at each end of the rollers. Cage pins pass through the holes in the center of each roller and are threaded into one cage ring and welded into the other.

Design Attributes

Additional rollers accomodate larger loads.
Cage features two rings at each end of the rollers.
Cage pins are threaded in the center of each roller and welded at the ends.

Applications
Larger-load automotive
Industrial equipment configurations
Off highway
Aerospace
Power transmission
Heavy industries
Health

TSF (Flanged Cup)

TSF bearings have flanged cups to facilitate axial location and accurately align seals in through-bored housings.

Design Attributes

Cup is backed against flange face to allow housing to be through-bored.
Accurate alignment of housing bores.
Reduced machining costs.
 
Applications

Machine tool spindles
Gear reduction units
Automotive transaxles
Transmissions

Timken bearings  offers the broadest range of tapered roller bearings available everywhere in the world. 

Tapered bearings are specially designed to manage both thrust and radial loads on rotating shafts and housing. We produce around 26000 bearing combinations - singles, doubles and four configurations line. Customized geometries and surface engineering can be applied to these bearings to improve performance in demanding applications. 

Tapered roller bearings consists of four interrelated components: the cone, or the inner ring, cutting, or outer ring, tapered roller, or rolling elements and the cage, or roller restraint. The cone angles allow the rotation to handle a combination of radial and thrust loads. The sharp angle of the cup, plus the ability to manage the port charges thrust. 

For more information on most types and sizes of tapered roller bearings that we offer, simply click on a link below.

timken Single-Row Tapered Roller Bearings
The most basic and widely used conical support, the only type of line is made up of the cone assembly and the cup. It is generally equipped like a pair opponent. During mounting hardware, single row bearings may be set for clearance or preload condition in order to optimize performance.

timken Double-Row Tapered Roller Bearings
Double or two rows of tapered roller dual function and two cups single cones. They are available in a variety of configurations for industrial and automotive applications.

timken Four-Row Tapered Roller Bearings
Four-line bearings combine the skills of high radial load capacity or thrust and direct / indirect variables assembling tapered roller bearings assemblies in maximum load in a minimum space.

we can surply most type of above timken bearings for best price  our e-mail: cnbearing@126.com 

The cylindrical roller bearings joined by several rows are mainly used in small rolling mills in the cold rolling efforts very important, but the speeds limited. They are also used in machines to recover and Shearing and extruders. For effective lubrication, these bearings have holes lubrication, or annular groove and lubrication holes in the outer ring.

The type of roller bearings SKF cylindrical joined several rows is the most common type NNU described below. On special order, the book also SKF bearings five rows of types NNCL and NNC. However, because of the quantity of designs and sizes available, the types NNCL NNC and are not listed in the tables bearings. Further details can be provided upon request.

Type NNU
These bearings have two rings free shoulder on the outer ring, an inner ring without shoulder and four or eight rows of rollers. They are removable and admit a certain axial displacement of the tree compared to the level in both directions.

Type NNCL
These bearings have four to six shoulders fixed on the inner ring and an outer ring segments shoulder without stopping on both sides of the path of the outer ring used to maintain the rotation. A certain axial displacement of the tree in relation to the bearing is tolerated in both directions.

Type NNC
These bearings have four to six shoulders fixed on the inner ring and a shoulder fixed and a free ring shoulder on the outer ring which holds the rotating basis. These bearings can guide a tree axially in both directions.

The cylindrical roller skf bearings joined by two rows have a maximum number of rollers, which allows them to withstand very high radial loads. However, they can not operate at speeds as high as the cylindrical roller bearings with cage. The SKF roller bearings cylindrical joined two rows are available in standard version under four different types: three types of bearings and open with a type joints. All these bearings are made of and inseparable elements with an outer ring and ring groove with three holes to facilitate lubricating grease.

Type NNCL
Roller-type NNCL have an inner ring with three shoulders and a fixed outer ring without shoulder. A segment of judgement, inserted in the outer ring between the rows of rollers, maintains the various components of working capital assembled. An axial displacement of the tree in relation to the bearing is possible in both directions. These bearings can be used as landing free.

Type NNCF
Roller-type NNCF are equipped with three shoulders fixed on the inner ring and a shoulder fixed on the outer ring which help guide the shaft axially in a sense. A segment of arrest is inserted in the outer ring, the side opposite to the shoulder fixed, to avoid rolling to disassemble.

Type NNC
Roller-type NNC are equipped with an inner ring identical to that of NNCL and bearing NNCF. Their outer ring into two parts assembly is maintained by a restraint that should not be loaded axially. Its two parts are identical and it is equipped with a shoulder fixed which helps guide the shaft axially in both directions.

Type NNF
The bearings NNF series NNF 50 and 3194 (00) are still bearing joints on both sides and lined with grease. Their inner ring into two parts has three fixed shoulders and is maintained assembled by a segment of judgement. The outer ring has a central shoulder fixed. These bearings can be used to guide the shaft axially in both directions. The relatively large distance between two rows of roller bearings also allows couples to bear spill.

The outer ring of a rolling NNF, narrower than the inner ring of a millimeter, has two slots for segments of judgement on its outer surface. The spacers between the faces of the inner ring and neighbouring elements are superfluous and in blocks by example

Special Type NNB
These bearings have three fixed shoulders on the inner ring and an outer ring without broad-shouldered This special bearings are designed for mounting levels of requiring free movement axial important in the rotation.