Posts Tagged ‘Koyo’

A panoramic view of the KTV (Koyo Training Vehicle)

Friday, April 13th, 2012

KTV (Koyo Training Vehicle) Panaramic view

Very impressive vehicle. While it was a wonderful day with all the activity, it felt good when it was over. The turnout was wondferful. Thank you to all that stopped by, and thank you to the Koyo representative and driver!

Until next time!!!

Koyo KTV Truck here until 2:00 pm CST today

Thursday, April 12th, 2012

An impressive show of technology on wheels is parked in our parking lot today. KTV Truck (Koyo Training Vehicle) on the inside is as impressive as it is on the outside.  The gentleman enjoying the coffee is Mr Cox, VP of Bearings Incorporated, and movtivator to bring the truck to our facilities at Bearings Incorporated.

Bearings Incorporated is hosting the KTV again …

Friday, September 16th, 2011

Koyo will be stopping by with it’s KTV on September 28th from 9:00 am to 1:00 pm, and open to Bearings Incorporated past, present and future customers.

Koyo brochure 2011

Here is the printable brochure, and we hope to see you there!!

Koyo Needle Roller – Bearing types and cages

Thursday, June 30th, 2011

Needle Roller Bearings

Needle roller bearings are an economical alternative for applications requiring minimal space to carry a given load at a desired speed. Needle roller bearings can be an ideal choice because of their ability to handle a given level of speed and load capacity, yet have the smallest cross section of all roller bearing types.

We offer both inch and metric nominal bearings in popular designs such as: drawn cups, radial caged needle rollers, machined ring, track rollers, thrust bearings, combined bearings, and drawn cup roller clutches. Most of these bearing types can be operated directly on a machined shaft of suitable quality, or with a matching inner ring where this requirement cannot be conventionally satisfied.

Radial Needle Roller and Cage Assemblies

Radial needle roller and cage assemblies have a steel cage that provides both inward and outward retention for the needle rollers. The designs provide maximum cage strength consistent with the inherently high load ratings of needle roller bearings. Accurate guidance of the needle rollers by the cage bars allows for operation at high speeds. Also available are needle roller and cage assemblies using molded, one-piece glass-reinforced engineered polymer cages. Needle roller and cage assemblies are manufactured with either one or two rows of needle rollers.

Drawn Cup Bearings

The outer ring in the form of a cup is accurately drawn and no subsequent machining is performed to build the outer raceway. Drawn cup needle roller bearings are available in open ends or single, closed-end designs, They also are available with one or two integral seals. Other options include a single lubricating hole and matching inner ring.

Heavy-Duty (Machined) Needle Roller Bearings

These bearings are available in a wide range of inch and metric sizes plus an array of design features including: integral seals, side flanges (or separate end washers), inner rings, oil holes and single or double caged sets (or full complement) of rollers.

Track Rollers

Track rollers listed in this catalog are designed with outer rings of large radial cross section to withstand heavy rolling and shock loads on track-type or cam-controlled equipment. The outside diameters of the outer rings are either profiled or cylindrical, Profiled track rollers are designed to alleviate uneven bearing loading resulting from deflection, bending or misalignment in mounting. Stud-type track rollers are available with or without lip contact seals, or with shields. Yoke-type track rollers are designed for straddle mounting. Each yoke-type is available with either radial needle roller and cage assemblies, or with a single (or double) full complement row of cylindrical or needle rollers.

Thrust Bearings

Thrust needle roller and cage assemblies are available in a variety of inch or metric sizes. All types have very small cross sections. If the back up surfaces cannot be used as raceways, hardened washers are available. Thrust bearings are available with needle rollers or heavier cylindrical rollers for high load-carrying capacity.

Combined (Radial and Thrust) Bearings

Combined bearings consist of a radial bearing (needle roller bearing) and a thrust bearing (ball or roller bearing). Some combined bearings are constructed similar to drawn cups, but with an added thrust bearing component. Like other needle roller bearings, these combined bearings can be matched with an optional inner ring or thrust washer as the opposing raceway.

Koyo – Bearing Mounting Tool Kits

Tuesday, May 10th, 2011

Koyo BMT 39 - Bearing Mounting Tools

 

Practical Mechanical mounting set for safe, precise and quick mounting of bearings, bushings, sealing rings, cam wheels and pulleys.  The set consists of a dead-blow hammer, 3 aluminum sleeves and a set of 39 plastic collets (rings).

The impact resistant plastic collets support the inner and outer rings when mounting, preventing metal to metal contact and possible damage to the bearing rings and shaft.

Koyo/Torrington Needle Roller Bearings – JTECKT

Tuesday, April 5th, 2011

JTEKT  Corporation is the result of the merge of Koyo Seiko Company Ltd, and Toyoda Machine Works Ltd on January 1, 2006, home based in Chuo-Ku, Osaka, Japan.

Koyo Bearings USA LLC Formed Following JTEKT Acquisition of Timken Division

JTEKT Corporation has created a new business unit, Koyo Bearings USA LLC, following the acquisition of the Timken Company’s Needle Roller Bearings business.  The acquisition combines the strength, heritage and intellectual capital of Koyo and Torrington Needle Roller Bearings to create one of the world’s largest needle roller bearing manufacturers.

Koyo Bearings will manufacture needle roller bearings under theKoyo Torrington Needle Roller Bearings brand, which features an extensive range of radial and thrust needle roller bearings, as well as bearing assemblies and loose needles for automotive and industrial applications.

KoyoUSA site has the most recent Earthquake/Tsunami update dated March 28, 2011, with promising regular updates.  Thankfully, it appears as if deliveries and production out of Japan will not be affected.

Tapered Roller Bearings

Thursday, March 3rd, 2011

Tapered roller bearings are designed such that the outer ring, inner ring and rollers have tapered surfaces whose apexes converge at a common point on the bearing axis. Among with metric series bearings, inch series bearings are also available. 

This type of bearing is suitable for application that involve heavy or impact loading.

Single row tapered roller bearings

Able to carry radial and axial load in one direction simultaneously. 

Because an axial component of force is produced when this type of bearing is loaded radially, two bearings are used together facing one another, or two or more bearings are matched and used.

There are the standard, medium and steep type which are different in contact angle size. 

Medium-tapered metric series bearings are identified by the supplementary code “D” which is added as a suffix to bearing numbers.

Bearings whose outer ring width, outer ring small inside diameter and contact angle are determined in accordance with ISO 355 specifications are identified by the supplementary code “J” as a suffix. 

Inner ring assemblies and the outer rings of such bearings are interchangeable with those of bearings produced abroad if the bearing numbers are the same.

Double row tapered roller bearings

These bearings are divided into the TDO type which has one double outer ring and two single-row inner rings and the TDI type which has two single row outer rings and one double inner ring.  Both accommodate radial and axial loading in both directions.

These two also carry moment loads, however, the TDO type is superior to the TDI type because the distance between load centers is longer in the TDO type.

The spacer of the TDO type, or the TDI type, pre-adjusts the internal clearance to provide proper operating clearance after mounting.

TDO (Tapered Double Outer) = double cup, two single-cone assemblies and are supplied with a shaft supported cone spacer unless otherwise specified.  Spacers for individual bearings are face ground to obtain the desired internal clearance for the assembly.  Spacers and components may not be interchanged.  In bearing type TDO, the contact angles diverge as they approach the axis of rotation, thus increasing the rigidity of the shaft mounting.  These bearings are therefore, best suited for resisting overturning moments.  Due to increasing bearing rigidity, housing bore alignment is somewhat more critical than the TDI type.
 
TDI (Tapered Double Inner) = double cone assembly tow single cups, and is supplied with a cup spacer unless otherwise specified.   The design of type TDI is such that the contact angles converge as they approach the axis of rotation.  Consequently, the use of these bearings will not appreciably increase the rigidity of the shaft mounting and they should not be used singly on a shaft since they will not resist overturning moments.

Outline of Bearing Selection

Wednesday, March 2nd, 2011

Currently, as bearing design has become diversified, their application range is being increasingly extended.  In order to elect the most suitable bearings for an application, it is necessary to conduct a comprehensive study on both bearings and the equipment in which the bearings will be installed, including operating conditions, the performance required of the bearings, specifications of the other components to be installed along with the bearings, marketability, and cost performance, etc.

In selecting bearings, since the shaft diameter is usually determined beforehand, the prospective bearing type is chosen based upon installation space, intended arrangement, and according to the bore diameter required.

Next, from the bearing specifications are determined the service life required when compared to that of the equipment in which it is used, along with a calculation of the actual service life from operational loads.

Internal specification including bearing accuracy, internal clearance, cage and lubricant are also selected, depending on the application.

Bearing Type, arrangement

Operating conditions to be considered

  • Installation space
  • Load magnitude, types and direction of application
  • Rotational speed
  • Running accuracy
  • Rigidity
  • Misalignment
  • Mounting ease
  • Bearing arrangement
  • Noise characteristics, friction torque
  • Marketability, cost performance

Other Data

  • Comparison of performance of bearing types
  • Example of bearing arrangement

Bearing Dimension

Operating conditions to be considered

  • Specifications for installation
  • Recommended service life
  • Dynamic equivalent load
  • Static equivalent load, safety coefficient
  • Rotational speed

Other data

  • Bearing boundary dimensions
  • Basic dynamic load rating
  • Basic static load rating
  • Allowable axial load
    • For cylindrical roller bearing with rib

Tolerance Class

Operating conditions to be considered

  • Running accuracy (runout)
  • Noise characteristics, friction torque
  • Rotational speed

Other data

  • Bearing tolerances

Fit and internal clearance

Operating conditions to be considered

  • Load magnitude, types
  • Materials, size and tolerances of shaft and housing
  • Operational temperature distribution
  • Fit
  • Difference in temperature of inner and outer rings
  • Rotational speed
  • Preload

Other data

  • Bearing tolerances
  • Bearing internal clearance

Cage type, material

Operating conditions to be considered

  • Rotational speed
  • Noise characteristics

Countermeasure for special environmental condition

Operating conditions to be considered

  • Conditions of application site
    • Abnormal temperature, sea water, vacuum, chemical solution, dust, gas, magnetism
  • Lubrication

Other data

  • Special bearing materials
  • Special heat treatment
    • Dimension stabilizing treatment
  • Lubricant

Lubrication, lubricant, sealing device

Operating conditions to be considered

  • Operating temperature
  • Rotational speed
  • Lubrication
  • Sealing device

Other data

  • Limiting speed
  • Grease service life

Mounting and dismounting, mounting dimension

Operating conditions to be considered

  • Mounting and dismounting

Other data

  • Mounting dimensions

Oh oh .. Have run into a road block …..

Thursday, January 20th, 2011

Help — I’ve fallen and can’t get up. 

Now that I’ve used the allotment of cliches where do I go from here.  Even the best of us run into brain blocks, and I’m no exception.  I have been doing research, and working hard learning the background information for the new website, www.bearingsinc.net that is soon to be launched.  I know “you’ve heard this all before”, but be assured that it is close to launch date, and it will change consistently once it is launched.  We want to make it better and easier for you to use. 

Right now, I have uploaded “most” of our Timken line; which is our biggest line.  This consists of both ball and roller bearings.  Ball bearings consisting of Angular contact, Wide inner ring, and Housed units. Roller bearings consisting of the Tapered Roller Bearings Cups, cones, and sets that Timken has always been famous for. 

I have also uploaded our Koyo Ball bearing line, which could offer some of the same parts as Timken.  We also have SKF-Chicago Rawhide currently uploaded which offers seals, and speedi sleeves.

In my plans, and my next uploading attempts consist of Koyo NEEDLE bearing line, and MBL (Mitsuboshi) belts.  These will cover quite a bit of items we can currently offer, but you need to watch the sight because once it’s launched, I will be configuring other databases to upload.  This way it will keep the sight changing, and interesting. 

New items = new choices = more options

While I’m not making any promises of a launch date; keep in touch and help us celebrate our launch when all of our hard work has finally come to an end.

Needle roller bearings from KOYO USA

Thursday, July 22nd, 2010

JTEKT Corporation has created a new business unit, Koyo Bearings USA LLC, following the acquisition of the Timken Needle Roller Bearings business. The acquisition combines the strength, heritage and intellectual capital of Koyo® and Torrington® Needle Roller Bearings to create one of the world’s largest needle roller bearing manufacturers.

The Torrington/KOYO group of bearings include the following; Drawn Cup, Roller Clutch, Roller and Cage guided, Thrust bearings and washers, Track Roller/Cam Followers and loose rollers.

Bearing’s Incorporated is proud to be a distributor of both divisions of the JTEKT Corporation. This enables us to cover most ball, roller and needle requests that our customers have.