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1, the product structure
IB LNSERTED consists of a double sealed ball bearings and outer ring has a spherical outer section width and a deep groove ball bearing inner ring bearing (cast iron or stamping steel seat) two parts. The typical structure shown below. The bearing unit is compact, with self-aligning features, easy installation and maintenance, with improved sealing means sealing performance and reliable, suitable for harsh working environments. Widely used in agricultural machinery, construction machinery, textile machinery, food processing machinery and conveyor systems.
2, with a spherical ball bearings feature
■ with self-aligning feature
The outer diameter of the bearing and the bearing inner diameter of the spherical coordinate between the two functions with self-aligning, can compensate for misalignment resulting misalignment and install the bottom of the Transfiguration.
■ load capacity
Since the outer spherical ball bearings with internal structure of 6200 and 6300 series deep groove ball bearings the same, so IB LNSERTED ball bearings can withstand not only radial load, but also bear large axial load. While bearing operating noise.
■ Long service life
LNSERTED ball bearings are usually used in such as dirt, dust, moisture and high temperature and other harsh working environment inside the bearing grease in the short term deterioration. Thus, the need for an appropriate time interval LNSERTED ball bearing grease re-lubrication, replaced with fresh grease grease has gone. IB spherical ball bearings with cast-iron comes with nozzle, can be re-lubricated, ensure that in any working environment has a perfect performance and long life.
■ sealing performance
Spherical ball bearings on both sides with a heat-resistant, anti-oil rubber seals and steel dust cover seal combination. Dust cover fitted in the bearing inner ring rotates together with the inner ring on the outer diameter, can effectively prevent external foreign matter from entering the bearing, and to protect the bearings against external pressure, which formed by the combination of seal and dust seal to prevent dirt, dust, moisture from entering the bearing, at the same time to prevent leakage of grease inside the bearing. The bearing in harsh working environments can maintain a perfect performance.
■ Rugged housing
Cast iron pedestal base structure as a whole, bearing excellent rigidity and prevent deformation bearing assembly, bearing in any condition are durable.
■ bearings can easily lock the shaft
Bearing locking on the shaft in three ways, a common approach is to spread the inner side upper two locking set screws can also use an adapter sleeve or eccentric locking. These three methods can be easily locked to the shaft bearing.
■ Bearings for special treatment
Hardened inner ring raceway and its surrounding parts required and after normal hardening, assembly set screws of the inner end of the elongated partial tempering at high temperatures while maintaining toughness and impact resistance. The inner screw holes around the local high-temperature tempering, bearing for better performance, prevent the screws in the bearing off during the song, and tight screw does not cause the inner ring burst.
■ Rotate the outer ring has a unique design to prevent
Bearing outer ring with a unique locking pin (ball), the stop pin allows self-aligning bearing, but also to prevent rotating outer ring, the bearing service life.
■ bearings and bearing housings are completely interchangeable
Bearing and housing are precision machining, bearings and bearing housings are completely interchangeable, at any time can easily replace bearings.
■ Easy installation
Spherical plain bearings are pre-injected enough quality grease will LNSERTED ball bearings can be mounted directly on the shaft. Thus avoiding the process of installing the bearing unit harmful substances into the bearing.
3, lubrication
LNSERTED ball bearings are generally maintenance free, fill the bearing assembly of high quality bearing grease generally able to meet the period of use. However, if the working conditions, bearing high-speed operation or operating temperature above 70 ℃, the complement of the bearing grease is required. IB LNSERTED ball bearings with lubrication structure, inject grease from the bearing housing oil gun nozzle. Through the bearing outer ring groove and hole into the bearing.
4, adjustable concentric
LNSERTED ball bearings can withstand no more than ± 5 ° initial angle error. But For added grease, its initial angular error of only ± 2.5 °, otherwise the hole on the outer ring will be covered.
5, load capacity
Spherical plain bearings and deep groove ball bearing load capacity of the same, the equivalent load calculation methods with the same deep groove ball bearings (see page 4). The axial load capacity depends on the inner ring and bearing stout, under normal circumstances should not be greater than 20% of rated load, when the axial load is large, rugged devices should increase in the shaft, such as shaft shoulder.
6, the installation instructions
Installation LNSERTED ball bearings, the bearing on the shaft, the first bearing firmly fixed on the supporting surface, and then tighten the bearing on the shaft can be. Bearing and shaft fastening method is: with set screws for the outer spherical ball bearings, with a hex wrench to screw on the wide inner ring bearing two set screws locking into place. For fastening sleeve with eccentric outer spherical ball bearings, the bearing inner ring on the condom eccentric eccentric stage, along the axis of rotation Tighten eccentric, then hex wrench to tighten the screws eccentric sleeve set screws.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7903C NSK | 17 | 30 | 7 |
| 7903A5 NSK | 17 | 30 | 7 |