How are bearings named?
The first digit or letter or combination of letters identifies the bearing type and eventually a basic variant. The following two digits identify the ISO dimension series. The first digit indicates the width or height series (dimensions B, T or H). The second digit identifies the diameter series (dimension D).
What do the numbers on a bearing mean?
A bearing number is composed of a basic number and a supplementary code, denoting bearing specifications including bearing type, boundary dimensions, running accuracy, and internal clearance.
What does V stand for in bearings?
“V-shaped” marking 2). In applications where there are axial loads in both directions, the “V-shaped” marking should point in the direction of the heavier of the two loads. Section navigation. Angular contact ball bearings. Product table: Angular contact ball bearings, super-precision.
How do I identify a bearing?
The first digit indicates the width or height series (dimensions B, T or H). The second digit identifies the diameter series (dimension D). The last two digits of the basic designation identify the size code of the bearing bore. The size code multiplied by 5 gives the bore diameter (d) in mm.
What is C3 in bearing?
Internal clearance being C3 means that the bearing has room for expansion if needed between the races of the bearing, whilst holding the outer ring and moving the inner ring in a radial movement you will detect a little amount of play between the two rings. C3 means the bearing has more clearance than standard.
What is C1 C2 C3 in bearing?
These are the 5 most common C codes for internal bearing play: C1, C2, C3, C4 and C5. If a bearing has a C code, it offers extra internal clearance. C1 offers the least extra clearance, C5 offers the most extra clearance. The extra margin C3 offer is considered ‘normal’.
How do you read bearing sizes?
How Bearings Are Sized. Bearings are measured by their inner diameter, outer diameter, and width; the size of a bearing is normally listed as such: ID x OD x W. These measurements are normally taken in millimeters, but can be converted to inches.
What is C3 bearing?
What are C3 bearings used for?
C3 is designed for hot running environments; engines etc. where the bearing temp could reach 100deg or more. C4 more extreme temperature applications and higher speed environments. C5 the highest clearance bearing available, are extremely loose to start and can knock until at operating speeds and temperature.
What is ZZ in bearing?
2 Z / ZZ – Bearing with a metal seal on both sides. Z – Bearing with a metal seal on one side, one side open.
What is a C5 bearing?
C codes for degree of bearing clearance If a bearing has a C code, it offers extra internal clearance. C1 offers the least extra clearance, C5 offers the most extra clearance. The extra margin C3 offer is considered ‘normal’. Bearings with C3 are in fact the most commonly used.
What is C4 in bearing?
This is the most common type of bearing, and is the correct choice for the majority of applications. C4 – Refers to “greater than C3 clearance”. Not as common as C3, but often specified in small engine crankshaft bearings.
What kind of bearings does Barden make?
Barden Products The Barden product line encompasses predominantly radial, single row, super precision angular contact (separable and non-separable) and deep groove ball bearings. Ball bearings are made to exacting ABEC-7 and ABEC-9 specifications, standards which Barden routinely exceeds.
What type of ball does Barden use?
Because ball quality affects the ability of a bearing to run smoothly, Barden uses both steel and ceramic balls produced to its own exacting specifications for ball geometry, finish and size control. Winsted Precision Ball supplies Barden with both steel and ceramic balls.
Why choose the Barden?
The Barden Corporation is recognised as a world leader in the design and manufacture of super precision ball bearings.
What is the size of a super precision bearing?
Barden super precision bearings come in inch or metric dimensions with diameters ranging from 5/32″ (4mm) O.D. up to 111/ 2″ (300mm) O.D. A variety of seals, shields and metallic/nonmetallic cage designs are available to satisfy most requirements.