What does 2rs mean on a bearing?
rubber seal
2 RS – Bearing with rubber seal on both sides. RS provides a better seal but more rolling friction than 2Z. RS – Bearing with rubber seal on one side, one side open.
What does B mean on a bearing?
B 1. Deviating or modified internal design with same boundary dimensions. As a rule the significance of the letter is bound to the particular bearing or. bearing series. Examples: 7210 B Single row angular contact ball bearing with 40° contact.
What is the difference between C0 and C3 clearance?
The suffixes C0 through C4 in a bearing part number refer to a bearing’s internal clearance value and have to do with what’s called “radial play”. Bearings with this type of clearance are uncommon and have very limited uses. C3 – Refers to a “greater than standard clearance”.
What is designation suffix?
A name suffix, in the Western English-language naming tradition, follows a person’s full name and provides additional information about the person. Post-nominal letters indicate that the individual holds a position, educational degree, accreditation, office, or honor (e.g. “PhD”, “CCNA”, “OBE”).
What is the meaning of RS in bearing?
Typically the RS stands for rubber seal. The 2RS stands for 2 rubber seals. One on each side of the bearing. So the RS denotes only one side is sealed with a rubber seal and the other is exposed and not sealed.
What is C3 on a 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 does VV mean on bearing?
V : Single non-contact seal. VV : Double non-contact seals. DW : Single light-contact seal. DDW : Double light-contact seals.
What does du stand for in bearings?
DU = depleted uranium. DP = double penetration. Even if the thread is old its still useful for new users and old to know wtf a du/dp bushing/bearing is imo.
What are bearings and seals?
Bearing Seals, also known as grease seals, are used to protect tapered, spherical, cylindrical and double-row bearings from excess grease loss and contamination. In 1956, Clark Seals partnered with The Timken Company to develop the industry’s first precision bearings seals for tapered roller bearings.
What is National bearing?
NATIONAL PRECISION BEARING is the bearing distribution group of Mechatronics , Inc. Mechatronics is a privately held marketing, distribution, and manufacturing company that was founded in 1984. Today, the corporation is comprised of four operating groups that serve diverse markets.
What is a national seal?
The obverse of the Great Seal is used as the national coat of arms of the United States. It is officially used on documents such as United States passports, military insignia, embassy placards, and various flags. As a coat of arms, the design has official colors; the physical Great Seal itself, as affixed to paper, is monochrome.