Roller Bearings – Ổ lăn (bạc đạn) đũa
Roller Bearings - Ổ lăn (bạc đạn) đũa
One End Cone Type Tapered Roller Bearings
Designed so the conical vertex of the raceway surfaces of the inner and outer rings and rollers converge at one point on the centerline of the bearing. Products on this page: HR model
Tapered Roller Bearings
Designed so the tapered vertex of the raceway surfaces of the inner and outer rings and rollers converge at one point on the centerline of the bearing. Products on this page: 3000, 3200 and 3300 series, 4T type
Cylindrical Roller Bearings
Cylindrical roller bearings are suitable for applications involving high-speed rotation because the friction between the rolling elements and the shoulder of the track wheel is small. Products on this page: N type
Thrust Roller Bearings
A roller bearing with thrust cage into which needle rollers are radially incorporated into the cage.
Products on this page: AXK type, AS type, GS type and WS type
Shell-Style Needle Roller Bearing
[Features]
· Bearing includes a needle roller and cage installed following formation of an outer ring from a thin steel plate via precision drawing and surface curing of the corresponding raceway. (For model numbers with “M” in the suffix symbol, curing is performed after installation).
· Allows for space and cost savings and has the lowest section height of any bearing which includes an outer ring.
· Generally, designs which use the axis as a raceway directly do not include an inner ring.
· Structured so that the outer ring needle roller and the retainer do not separate, and handling is simplified as the bearing is only press-fixed to a rigid housing and no stop ring for performing fixing in the axial direction is required.
Cylindrical Roller Bearings
As the rollers and raceway are in linear contact, the bearing’s radial load capacity is large, and the rollers are guided by the shoulder of the inner or outer ring, so the bearing is structurally suitable for high-speed rotation. Products on this page: N, NF, NJ, NUand NN models
Thrust Cylindrical Roller Bearings
Thrust Needle Roller Bearings
One Way Clutch HF
Small roller-type one-way clutch in which a cam surface is formed on the outer ring’s inner diameter surface.
Solid Needle Roller Bearings
For this bearing, needle rollers and a retainer have been incorporated into a solid outer ring such that the outer ring and needle are not separated. Features high rigidity and bearing accuracy can be increased; ideal for applications where high speed, high load and high rotational accuracy are required.
[Features]
· Solid needle roller bearing dimensional accuracy, conformational accuracy and rotation accuracy are specified in JIS B 1514 (rolling bearing precision).
· Products of precision grade JIS0, are manufactured by default but JIS6, JIS5, and JIS4 class products can also be provided for applications that require higher rotational precision; please inquire with NTN.
· The dimensional tolerance of the roller’s inscribed circle diameter for the inner ring-less RNA, NKS and MR models corresponds to ISO class F6.
· Refer to the corresponding documentation when choosing axle diameter dimensions and radial clearance.
· Especially high
Self-Aligning Roller Bearings
This bearing includes an outer ring with a spherical raceway as well as an inner ring with two rows of rolling elements, and aligns itself according to the axial tilt, allowing it to bear large loads. Products on this page: 600 series
Self-aligning roller bearings
This bearing includes an outer ring with a spherical raceway as well as an inner ring with two rows of rolling elements, and aligns itself according to the axial tilt. The bearing can bear large loads and thus can be used for industrial machinery. Products on this page: 2100 2200, 2300 and 2400 series, LH type
Cylindrical Roller Bearings
[Features]
· Designed to carry large radial load
· High speed rotation performance
· Little friction between rollers and raceways
[Applications]
· Machine tool spindles, electric motors, reduction gears, axle for railway vehicles
Shell-Style Needle Roller Bearing
This shell-style needle roller bearing includes a needle roller and retainer installed following formation of an outer ring from a thin steel plate via precision drawing and surface curing of the corresponding raceway. Products on this page: F model
Needle Roller Bearings with Thrust Ball Bearings – With Inner Ring
Thrust Self-Aligning Roller Bearings
Thrust self-aligning roller bearings provide a spherical surface around the point where the raceway of the housing raceway plate coincides with the center of the bearings, and its rolling elements correspond to bearings using a barrel form roller with which self-alignment can be maintained. Products on this page: 2900 series
[Features]
· Thrust self-aligning roller bearings provide a spherical surface around the point where the raceway of the housing raceway plate coincides with the center of the bearings, and its rolling elements correspond to bearings using a barrel form roller with which self-alignment can be maintained.
· Allowable aligning angles, which vary depending on the model of the bearing used, range from 1˚ to 2˚ for typical loads.
· The cage is carved from copper alloy and a guide sleeve for guiding the cage is present on the inner ring.
· Has a large axial load capacity and can even tolerate a certain degree of radial load while an axial load is applied. This is provided that Fr/Fa ≦ 0.55.
· In addition, oil lubrication must be used even during rotation at low-speeds because there exist points of insufficient lubrication, such as between the roller end face and the shaft raceway plate shoulder and between the retainer and the guide sleeve.
Needle Roller with Retainer
Basic constituent component for a needle roller bearing with a structure that ensures that the needle roller is not separated from the cage. The compact and lightweight design is made possible thanks to the use of the shaft or housing as a direct raceway surface, without the use of an inner or outer ring.
Shel Type Roller Clutch
One-Way Clutches
Bearings are on both ends of the clutch to support radial loads.
Double Row Tapered Roller Bearings
Designed so the tapered vertex of the raceway surfaces of the inner and outer rings and rollers converge at one point on the centerline of the bearing. Products on this page: 600 series
Needle Roller Bearings with Thrust Roller Bearings – With Inner Ring
Track Roller Bearing Non-Contact Type-KDD Series
Track Roller Bearing (Contact Type)-NPP Series
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