Double Row Spherical Bearing for sand blasting machines 21308 (60323538142)

Share on:


Price:RUB 606.55
Price in USD:Details

Quantity:


Product Overview

Description

21300 Series spherical roller bearing has a high-capacity steel cage, a CN radial clearance, P5 precision, an outer ring with center lubrication groove and three oil holes, and a round bore suitable for applications that support high radial and oscillating axial loads, such as in light rail wheel sets. Its rollers, cage, and rings are made from low-oxide vacuum-melted high-carbon chrome steel for increased wear and fatigue resistance and higher limiting speeds, and it conforms to Deutsches Institut für Normung (DIN) P5 precision standard for performance within a narrow range of variation. The steel cage has high wear resistance,spaces the oversize rollers for even load distribution, and prevents contact to reduce friction, vibration, and noise. The bearing's round bore fits conventional cylindrical shafts. This bearing has an "Extra Heavy" rating and two rows of symmetrically arranged rollers oriented on a concave raceway, which allow self-realignment and compensate for static and dynamic alignment errors. This bearing has a maximum operating temperature of 392 degrees F. This roller bearing's CN (normal) radial clearance is for applications where thermal expansion does not reduce clearance. This roller bearing is intended for interchangeability and meets DIN standards for parts numbering, bearing dimensions, load ratings, tolerances, and clearances. It meets International Standards Organization (ISO) standards for hardening of bearing rollers and rings. This spherical barrel roller bearing is suitable for use in material handling equipment, electric generators, and machine tools.
* 21300 Series two row spherical roller bearing has an "Extra Heavy" rating with oversize rollers to support high radial and oscillating axial loads
* High-capacity steel cage has high wear resistance and spaces the rollers for even load distribution and prevents contact to reduce friction, vibration, and noise
* P5 precision and high-carbon chrome steel parts for increased wear and fatigue resistance
* CN (normal) radial clearance for applications where thermal expansion is not a factor
* Round bore fits conventional cylindrical shafts
Product Name
21308
d
40 mm
D
90 mm
B
23 mm
Basic dynamic load rating
107 kN
Basic static load rating
108 kN
Limiting speed
9500 r/min
Mass bearing
0.75 kg
Using Effects
Roller bearings use rolling elements to maintain the separation between moving parts to reduce rotational friction and support radial and axial loads. These elements can be one of the following types: ball, cylindrical, spherical, barrel, needle, spindle, or tapered. All roller bearings are open, shielded, or sealed. Sealed bearings are lubricated with oil or grease in the bearing factory, while open and shielded bearings are meant to be lubricated in place, with periodic reapplication of lubrication, based on use. The shield protects the working parts of the bearing from environmental debris that may be introduced and could reduce the ball bearing speed and lifespan. Rolling bearings are used in a range of applications from agricultural machinery to conveying equipment, robotics, dental equipment, elevators, rolling mills, ship rudder shafts, and aggregate crushers, among others.
NSK manufactures ball and roller bearings, linear guides, and other components for automotive and industrial applications. Standardization (ISO) TS 16949 and 9001 standards for quality assurance.
Related Products
$15 - $ 20 Pieces
100 Pieces (MOQ)
$15 - $ 20 Pieces
100 Pieces (MOQ)
$15 - $ 20 Pieces
100 Pieces (MOQ)
Packing & Delivery
Company Introduction
Jinan Kaiming Bearing Co., Ltd. is a famous bearing manufacturer authorized agent and is one of the world famous branded bearing sellers. We can serve u good quality&suitable price&life long after sale service.The company provides the customized products and OEM service.
All kinds certifications 
Different kinds of certification can meet your all requests for selling them.
Huge worehouse.


Can offer you simple models with immediately shipping.As we have large stock.
By air
Express:DHL TNT UPS FEDEX 

By air to airport
By sea
FOB 
CIF 
CFR 

60323538142
0.0126 s.