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Hollow Roller Bearings

 

 

Hollow roller bearings are single-row or double-row radial bearings with an inner ring, an outer ring, and hollow or thin-wall rollers. The thin wall in the rollers allow the bearings to be preloaded, as opposed to cylindrical roller bearings with solid rollers. This increases radial stiffness and reduces radial vibration and radial runout. The proper lubrication of hollow roller bearings is critical for their proper operation and bearing life. Hollow roller bearings are used on turbine shafts, as well as in grinding, milling, and workhead spindles where precision and stiffness are required.

Products & Services
Roller bearings are used in rotary applications to replace sliding movement with low friction, rolling motion. The principal types of roller bearings are cylindrical, spherical, and tapered. Search by Specification | Learn more about Roller Bearings
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. Search by Specification | Learn more about Tapered Roller Bearings
Flange mounted bearings are used when a shaft axis is perpendicular to the bearing mounting surface. They are available in 2, 3, or 4-hole configurations. Search by Specification | Learn more about Flange Mounted Bearings
Pillow block bearings are mounted bearings that are used to provide load support for a rotating shaft’s axis.  Search by Specification | Learn more about Pillow Block Bearings
Aerospace bearings are designed to meet the rigorous demands of aircraft control and aerospace applications. Search by Specification | Learn more about Aerospace Bearings
Product Announcements
Emerson Bearing Co. - Roller Bearings
Emerson is the superstore of bearings. They have over 3 million bearings in stock in their centrally located distribution center. They have many types of Roller Bearings in stock. (read more)
RBC Bearings - Heavy Duty Needle Roller Bearings
High load capacity, long life caged roller bearings in standard configurations and custom designs. (read more)
SKF/North America - Cylindrical Roller Bearings/ Wind Turbine Gearbox
SKF® New high-capacity cylindrical roller bearings for wind turbine gearboxes have been uniquely engineered to promote longer gearbox service life and optimized performance. Their innovative cage... (read more)
SKF/North America - High-speed longer-life cylindrical roller bearing
SKF® cylindrical roller bearings feature unique logarithmically "crowned" rollers providing improved contact geometry between roller and raceway. This roller profile reduces stresses under high loads,... (read more)
RBC Bearings - Airframe Control Needle Track Rollers
RBC Aerospace Bearings offers a full line of Mil Spec standards and many specialty and custom airframe control needle track rollers to the aerospace industry and all major OEM specifications. RBC... (read more)
 
Topics of Interest
Two-row or double-row tapered roller bearings have increased radial load capacity compared to single-row bearings. They can also handle thrust loads from both directions. The rollers can be configured... (Read More)
Runout is measured by determining the radial difference between two concentric reference circles drawn to just enclose the profile of the part or cylindrical surface under evaluation. The inner... (Read More)
A pump bearing system consists of bearings to carry radial loads and at least one bearing to carry axial or thrust loads. For horizontally mounted pumps, there are two basic pump rotor arrangements:... (Read More)
Situation: * Combat helicopters are vulnerable to sudden loss of transmission lubrication due to enemy fire * Increasing the transmission life after sudden lubrication loss increases the probability... (Read More)
Operation   Heat is generated during bearing operation for various reasons. The lubricant is subject to shear forces as it circulates in the bearing. Excess oil in the bearings increases... (Read More)
See more product announcements for Roller Bearings
Cross Roller Ring Type RB

Cross Roller Ring Type RB
THK America, Inc.


HD Heavy Duty Roller Bearings

HD Heavy Duty Roller Bearings
Baldor Electric Company


KAYDON BEARINGS - CUSTOM DESIGNED BEARINGS

KAYDON BEARINGS - CUSTOM DESIGNED BEARINGS
KAYDON Corporation Bearings Division


11 See more product announcements for Roller Bearings