RBIConnections

A Monthly Communication From
RBI Bearing, Inc.

Volume III --lllIssue12b bbbb

December 2005

Happy Holidays from RBI Bearing!

 

As we come to the close of our 15th year in business, we at RBI extend warm wishes for the Holidays and a sincere thank you for your business.  Your confidence in our products and people have enabled us to grow from our beginning as a small broker in southern California into a major manufacturer of Chinese bearings selling products throughout the world.

The past 15 years have provided many significant milestones for RBI, including:

1991
-
RBI Bearing moves to larger facility in Monrovia, CA
     
1993
-
RBI Trading Company and QC Center established in Wuxi, China
     
1994
-
RBI USA establishes sales and distribution center in Addison, IL
     
1995
-
RBI Canada established in Mississauga, Ontario
     
1997
-
RB International announces plan to build new factory in Chengdu, China
     
2002
-
250,000 square foot factory in Chengdu, China completed
-
ISO-9001 certificate received for manufacturing facilities
-
Miniature ball-bearing factory purchased in Wuxi, China
-
RBI USA moves to 25,000 square foot facility in Roselle, IL
     
2004
-
RBI Canada establishes Western sales office in Calgary, Alberta
     
2005
-
RB International begins building new consolidated manufacturing facility in Wuxi, China
-
RBI Canada opens new distribution center in Calgary, Alberta
-
RBI Canada moves to new, larger facility in Mississauga, Ontario
-
RB International introduces RBtech® ball-bearing brand

We're proud of what we have accomplished during our first fifteen years and eagerly look forward to the future.  As our industry continues to change we will continue to invest in people and innovative technology to insure we remain the premier producer of Chinese bearings.  May this holiday season be happy and the coming year bring you great prosperity and good health.


Win a Swingmaster Classic Pro Jump Rope - $60 Retail Value


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Accu Drives Inc
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China Update
A monthly look at news from China
Click the title to read the story

China gears up for e-commerce boom
Just like the U.S. tech boom of the 90s, China's Net entrepreneurs are young, smart and riding the crest of a wave.

GM eyes making hybrids in China
General Motors Corp. plans to explore making hybrid cars for China with its main partner in the country, targeting their introduction by 2008.

China #1 for tourism by 2017?
China will become the world's top tourist destination by 2017, three years earlier than World Tourism Organization predictions.

China plans 2007 space mission
China plans to put three men into space within the next two years as it looks ahead to an orbiting space station and a mission to the moon.


What are the factors that determine ball grade?
by Mike Mortensen - Director of Engineering RBI-USA

Multiple factors determine the grade of a precision bearing ball. These are specified using dimensional form and surface condition tolerances. Tables 1 and 2 below are adapted from ABMA Std 10 and highlight some of the different tolerances for various ball grades. The tolerance definitions listed below can also be found from ABMA Std 10.

Table 1. Metric Tolerances (in micrometers)

 

 

 

 

 

 

 

 

 

 

 

 

Table 2. Inch Tolerances (in microinches)

Ball Grade

Allowable Ball Diameter Variation

Allowable Deviation from Spherical Form

Maximum Surface Roughness Arithmetic Mean

Allowable Lot Diameter Variation

Ball Grade

Allowable Ball Diameter Variation

Allowable Deviation from Spherical Form

Maximum Surface Roughness Arithmetic Mean

Allowable Lot Diameter Variation

3

0.08

0.08

0.012

0.13

3

3

3

0.5

5

5

0.13

0.13

0.020

0.25

5

5

5

0.8

10

10

0.25

0.25

0.025

0.5

10

10

10

1.0

20

16

0.40

0.40

0.025

0.8

16

16

16

1.0

32

24

0.60

0.60

0.050

1.2

24

24

24

2.0

48

48

1.20

1.20

0.080

2.4

48

48

48

3.0

96

100

2.50

2.50

0.125

5

100

100

100

5.0

200

200

5.00

5.00

0.200

10

200

200

200

8.0

400

500

13.00

13.00

-

25

500

500

500

-

1000

1000

25.00

25.00

-

50

1000

1000

1000

-

2000

Ball Diameter Variation
The difference between the largest and the smallest actual single diameters of one ball.

Deviation from Spherical Form
The greatest radial distance in any radial plane between a sphere circumscribed around the ball surface and any point on the ball surface.

Lot Diameter Variation
The arithmetic mean of the mean diameter of the largest ball and that of the smallest ball in the lot.

Surface Roughness
Consists of all those irregularities which form surface relief and which are conventionally defined within the area where deviations of form and waviness are eliminated.

Technical Article Archive

Have a question or topic you would like to see covered? Click here to let Mike know!


Final Word - Buy your own present...

After her 90th Birthday, Marie found that shopping for Christmas gifts had become too difficult, so she decided to send checks to everyone instead. On each card she wrote, "Buy your own present," and she mailed them early.

Marie enjoyed the usual flurry of family festivities. Only after Christmas did she get around to clearing off her cluttered desk.

There, under a stack of papers, were all the gift checks which she had forgotten to enclose.


Final Final Word

      
Happy Birthday Strawberry Liang!  December 3


We Get It Done.

RBI Connections is a publication of RBI Bearing, Inc and is intended to provide useful company and/or industry news and information. We understand and respect your need for privacy. Email addresses in our files are from our customers or published materials. Please accept our apologies if you believe this email to be unsolicited. We are sorry for the inconvenience. Any personal information provided to us will be stored in a secure environment and will not be misused. RBI Bearing, Inc. does not make email addresses available to third parties for their use. RBI Bearing would like to send news releases and special promotions to you from time to time. If you would not like to receive these emails from us, please click this link and type the word "unsubscribe" in the subject. © 2005 RBI Bearing, Inc.