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Bore:

Outside Diameter:

Overall Width:

Static Radial Load:

Static Axial / Thrust Load:

Bearing Design:

Self-aligning?

Flanged?

Military?

Stainless Steel?

Ceramic Balls?

Plated?

Help with Aerospace Bearings specifications:

Dimensions
   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.
   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.
   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.
   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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Operating Specifications Do not over-specify. Enter only those loads that apply for bearing type and application. Static and dynamic loads may not be available for all bearing types and suppliers.
   Static Radial Load       Static radial load is the maximum radial load a bearing can endure without excessive, permanent deformation. 
   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.
   Static Axial / Thrust Load       Static axial (thrust) load is the maximum axial load a bearing can endure without excessive, permanent deformation. 
   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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Bearing Design
   Bearing Design:       
   Your choices are...         
   Angular Contact Ball Bearing       Angular contact bearings are designed such that a contact angle between the races and the balls is formed when the bearing is in use. The major design characteristic of this type of bearing is that one or both of the ring races have one shoulder higher than the other. In order for these bearings to function properly, they must be assembled with a thrust load. This loading (or preload) creates a line of contact (or contact angle) between the inner race, the ball, and the outer race. The preload can be built in to the bearing or created when the bearing is inserted into an assembly. The contact angle varies from 15° to 40° and is measured relative to a line running perpendicular to the bearing axis. Angular contact bearings are one-directional thrust bearings that can withstand heavy thrust loads and moderate radial loads. 
   Conrad / Deep Groove Ball Bearing
Conrad Bearing (Diagram)Courtesy of GlobalSpec, Inc.
 
     The balls rotate in a deep groove machined into the inner and outer races. A cage maintains ball clearance and complement.  This type of bearing exhibits a good radial load capacity, a fair axial load capacity, and a fair capability to resist misalignment. 
   Double Row Angular Contact Bearing
Double Row Deep Groove Bearing (drawing)Courtesy of GlobalSpec, Inc.
 
     Double-row angular contact ball bearings have two rows of balls in a single inner and outer ring. 
   Double Row Deep Groove Ball Bearing       This bearing style is a modified version of the single-row deep groove ball bearing with the addition of a second row of balls. This design increases its ability to carry radial and thrust loads.  Though using the same radial mounting space as the single-row style, its increased width limits the ability of this bearing to accommodate misalignment. 
   Maximum Capacity Ball Bearing       Maximum-capacity bearings have a higher load capacity than the Conrad-type but diminished thrust capacity. These bearings have no cage to separate the balls. A filling slot is used to load as many balls as possible. 
   Maximum Capacity Double Row Ball Bearing       This bearing style is a modified version of the maximum-capacity single-row ball bearing, with the addition of a second row of balls. Maximum-capacity double-row bearings have a higher radial and thrust load capacity than single-row maximum-capacity bearings. These bearings have no cage to separate the balls.  A filling slot is used to load as many balls as possible. 
   Needle Roller Bearing with Inner
Needle Bearing (drawing)Courtesy of GlobalSpec, Inc.
 
     Needle roller bearings are cylindrical roller bearings where the rolling element is long and thin relative to its diameter. These bearings have low cross sections but high radial load carrying capacity. This type has an outer ring, needle rollers, a cage, and an inner ring. 
   Cylindrical Roller Bearing       Cylindrical roller bearings have high radial load capacity and moderate thrust loads. They contain rollers that are cylindrical in shape. The rollers are not true cylinders; they are crowned or end relieved to reduce stress concentrations. This geometry translates to low friction and high-speed applications.  Cylindrical roller bearings are commonly available in precision grades (RBEC-5). Lubrication for cylindrical roller bearings is usually oil, which also serves as a coolant. 
   Spherical Roller Bearing
Spherical Roller Bearing (Drawing)Courtesy of GlobalSpec, Inc.
 
     Spherical roller bearings are self-aligning, double-row, combination, radial, and thrust bearings. The rolling element is a spherical or crowned roller. The outer ring has a spherical race that allows for some misalignment of the shaft and housing.  They are unequalled in their capacity for high loads and tolerance to shock loads, but have limited speed capabilities. 
   Tapered Roller Bearing       Tapered roller bearings consist of an inner ring (cone), an outer ring (cup), a cage, and rollers, which are profiled to distribute the load evenly across the roller. 
   Thrust Bearing       Thrust ball bearings are designed for pure thrust loads. These bearings can handle little or no radial loads. The rolling element can be a ball, needle, or roller. 
   Other       Unlisted, unspecified, or proprietary configuration. 
   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.
   Self-aligning
Self-aligning Ball Bearing (drawing)Courtesy of CCVI USA
 
     Bearing outer ring is spherically shaped and matched to the bore of a housing to compensate for some misalignment. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Flanged
Radial Retainer Flanged Shielded BearingCourtesy of Timken Super Precision
 
     The bearing has a flange for mounting or locating. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Military       Bearing manufactured in accordance with the U.S. government standards, as dictated by the appropriate military specifications. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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Special Material / Plating Options
   Stainless Steel       Stainless steel is chemical and corrosion resistant and can have relatively high pressure ratings. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Ceramic Balls       A ceramic hybrid bearing is constructed of steel inner and outer rings with ceramic (typically Si3N4 balls in place of steel. These bearings have several advantages over all steel bearings, such as higher speed and acceleration capability, increased stiffness, higher accuracy, lower friction and heat generation, reduced lubrication requirements, low thermal expansion, extended operating life. Bearings containing all ceramic balls are also nonconductive and are commonly used in electric motor applications. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Plated       Bearing is plated; common plating materials are cadmium and chrome. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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Product Announcements
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