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Bore:

Outside Diameter:

Overall Width:

RBEC Rating:

Bearing Features:

Lubrication:

Help with Cylindrical Roller Bearings specifications:

Bore Size
   Bore       The bearing industry uses a standard numbering system for bearings with metric-diameter bores. If the bore is hexagonal, enter the dimension across the flats. If the bore is tapered, enter the smaller diameter. For bore sizes 04 and up, multiply the bore size by 5 to identify the bore diameter in millimeters (mm). Refer to the table below. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Tables:         
   Bore Size (does not list all possible sizes)     

Bore Size

Dimension (mm)

00

10mm

01

12mm

02

15mm

03

17mm

04

20mm

05

25mm

06

30mm

07

35mm

08

40mm

09

45mm

10

50mm

11

55mm

12

60mm

13

65mm

14

70mm

15

75mm

16

80mm

17

85mm

18

90mm

19

95mm

20

100mm

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Outside Diameter
   Outside Diameter       Enter the outside diameter of the bearing. For housed bearings, include the housing. For flanged bearings, exclude the flange. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Width
   Overall Width       Enter the overall width of the bearing or bearing assembly, including the locking collar (if present). 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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ANSI / AFBMA Quality Standards ANSI: American National Standards Institute AFBMA: Anti-Friction Bearing Manufacturers Association ABEC: Annular Bearing Engineers Committee RBEC: Roller Bearing Engineers Committee Refer to tables below for quality standards and cross reference to other standards organizations.  Note: Stretch window to resize table(s).
   RBEC Rating:       ABEC (Annular Bearing Engineers' Committee) ratings classify different accuracy and tolerance ranges for bearings. The higher the ABEC number the tighter the bearing tolerances. 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
   Tables:         
          

Bearing Standard

Tolerance Class

Bearing Types

AFBMA

 

ANSI

AFBMA/ANSI Std. 20

ABEC-1 RBEC-1

ABEC-3 RBEC-3

ABEC-5 RBEC-5

ABEC-7

ABEC-9

Radial bearings (except tapered roller bearings)

AFBMA/ANSI Std. 19.1

Class K

Class N

Class C

Class B

Class A

Tapered roller bearings (Metric series)

AFBMA B 3.19 ANSI Std. 19

Class 4

Class 2

Class 3

Class 0

Class 00

Tapered roller bearings (Inch series)

AFBMA/ANSI Std. 12.1

--

Class 3P

Class 5P Class 5T

Class 7P Class 7T

Class 9P

Precision instrument ball bearings (Metric series)

AFBMA/ANSI Std. 12.2

--

Class 3P

Class 5P Class 5T

Class 7P Class 7T

Class 9P

Precision instrument ball bearings (Inch series)

ISO

ISO 492

Normal class Class 6X

Class 6

Class 5

Class 4

Class 2

Radial bearings

ISO 199

Normal class

Class 6

Class 5

Class 4

--

Thrust ball bearings

ISO 578

Class 4

--

Class 3

Class 0

Class 00

Tapered roller bearings (Inch series)

ISO 1224

--

--

Class 5A

Class 4A

--

Precision instrument bearings

JIS

JIS B 1514

Class 0 Class 6X

Class 6

Class 5

Class 4

Class 2

All types

DIN

DIN 620

P0

P6

P5

P4

P2

All types

AFBMA - Anti-friction Bearing Manufacturers Association                  (ABEC-Ball Bearings, RBEC-Roller Bearings) ANSI- American National Standards Institute ISO- International Organization for Standardization JIS- Japanese Industrial Standards DIN- Deutsch Industrie Norm

 
          

Standard ABEC Tolerances Inner Rings (all tolerances in micrometers)

Bearing Bore (mm)

Bore Diameter* +.00mm to

Width Variation

Radial Runout

Side Runout with Bore

Raceway Runout with Side

Width Inner & Outer Rings

ABEC Rating

1

3

5

7

9

3

5

7

9

1

3

5

7

9

3

5

7

9

3

5

7

9

1-3-5-7

9

0 - 10

-3

-2

-2

-1.5

-1

3

2

1

.5

3

2

1.5

1

.5

3

3

1

.5

6

3

1

.5

-50

-10

10 - 18

-3

-2

-2

-1.5

-1

4

2

1

.5

4

3

1.5

1

.5

4

3

1

.5

6

3

1

.5

-50

-20

 
         

Standard ABEC Tolerances Outer Rings (all tolerances in micrometers)

Bearing O.D. (mm)

Outside Diameter* +.00mm to

Width Variation

Radial Runout

Raceway Runout with Side

Outside Diameter Runout with Side

ABEC Rating

1

3

5

7

9

3

5

7

9

1

3

5

7

9

3

5

7

9

3

5

7

9

0 - 18

-4

-3

-2

-2

-1

4

2

1

.5

6

4

2

1.5

.5

8

3

2

.5

4

3

1.5

.5

18 - 30

-4

-3

-2

-2

-1.5

4

2

1

.5

6

4

2

1.5

1

8

3

2

1

4

3

1.5

.5

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Bearing Features
   Bearing Features       
   Your choices are...         
   Flanged Bearing       The bearing has a flange for mounting or locating. 
   Spherical Outside Diameter       The bearing is tolerant of misalignment and has a greater load capacity than internal self-alignment, but requires more radial space. 
   Split Bearing       Bearing and housing are completely split around the shaft for easy bearing replacement and inspection. 
   Thin-section       Thin-section bearings have small cross sections with respect to their diameter. They are designed to save space, lower the weight of a design, and reduce friction. Some thin-section bearings are also referred to as torque tube bearings. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Lubrication
   Lubrication       
   Your choices are...         
   Prelubricated       Bearing is prelubricated from the factory. Bearings with seals and shields usually are pre-lubricated with grease. 
   Relubricatable       This applies to sealed bearings only. Relubricatable bearings have provisions for relubricating the bearing (usually with grease) without removing the seals. 
   Solid Lubrication       Solid lubricants can be used in a vacuum, in high and low temperature applications, and where oil or grease may be unsuitable. Solid lubrication bearings feature excellent oil retention and long lubrication life. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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