Products

TAPERED ROLLER BEARINGS

What Are Tapered Roller Bearings?

Tapered roller bearings carry both radial load and axial thrust simultaneously in a single bearing. The cup, cone, and rollers are all tapered, with their extended contact lines meeting at a common point on the bearing axis. This geometry creates line contact between the rollers and raceways rather than point contact, which is what allows tapered roller bearings to carry significantly higher combined loads than other bearing types.

The cup and cone are separable. Both components can be mounted independently onto the shaft and into the housing, which simplifies installation and makes precise preload adjustment possible.

Four Main Component

Exploded view of tapered roller bearing components

Outer Ring Raceway

Cage

Roller

Inner ring Raceway

Tapered Roller Bearing Range

Single Row Tapered Roller Bearings

Technical Specifications:

Series: 302, 303, 320, 322, 323, 330, 332

Bore Range: 20mm – 200mm

Handles combined radial and axial loads in a single direction
Separable design enables precise preload adjustment
Essential for gearbox shaft assemblies and machine tool applications
Custom sizes available on request

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Double Row Tapered Roller Bearings

Technical Specifications:

Series: TQO, TQIT

Arrangements: TDI, TDO, Custom Configurations

Two rows of tapered rollers in a compact back-to-back unit
Bidirectional axial load capacity alongside high radial loads
Preferred for heavy-duty gearboxes where housing length must be minimised
Custom configurations available on request

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Advantages Of Tapered Roller Bearings

Rigid Arrangement

Two tapered roller bearings combined with a controlled preload create a rigid, highly customizable bearing arrangement suited to demanding shaft positioning requirements.

Increased Power Density

Reduces friction and increases power density simultaneously, improving overall application performance without adding size or complexity.

Optimized Rotation

Optimized raceway geometry supports smooth, low-friction rotation even at high operating speeds, resulting in less noise and reduced vibration.

Harsh Condition Performance

Built to perform reliably under difficult operating conditions including shock load, contamination, and temperature variation, keeping downtime to a minimum.

Effective Heat Management

Manages heat generation effectively through optimized contact geometry and lubrication film development, contributing to longer service life.

Low Maintenance

Long relubrication intervals and durable construction mean less maintenance time and better utilization of both equipment and resources.

Product Table

30204No. 1

Bore d (mm): 20
ODD (mm): 47
Width T (mm): 15.25
Inner B (mm): 14
Outer C (mm): 12
Dynamic (kN): 34.1
Static (kN): 28
Speed (RPM): 15000

30205No. 2

Bore d (mm): 25
ODD (mm): 52
Width T (mm): 16.25
Inner B (mm): 15
Outer C (mm): 13
Dynamic (kN): 38.1
Static (kN): 33.5
Speed (RPM): 13000

30206No. 3

Bore d (mm): 30
ODD (mm): 62
Width T (mm): 17.25
Inner B (mm): 16
Outer C (mm): 14
Dynamic (kN): 50
Static (kN): 44
Speed (RPM): 11000

30207No. 4

Bore d (mm): 35
ODD (mm): 72
Width T (mm): 18.25
Inner B (mm): 17
Outer C (mm): 15
Dynamic (kN): 63.2
Static (kN): 56
Speed (RPM): 9500

30208No. 5

Bore d (mm): 40
ODD (mm): 80
Width T (mm): 19.75
Inner B (mm): 18
Outer C (mm): 16
Dynamic (kN): 75.8
Static (kN): 68
Speed (RPM): 8500

30209No. 6

Bore d (mm): 45
ODD (mm): 85
Width T (mm): 20.75
Inner B (mm): 19
Outer C (mm): 16
Dynamic (kN): 81.6
Static (kN): 76.5
Speed (RPM): 8000

30210No. 7

Bore d (mm): 50
ODD (mm): 90
Width T (mm): 21.75
Inner B (mm): 20
Outer C (mm): 17
Dynamic (kN): 93.1
Static (kN): 91.5
Speed (RPM): 7500

30211No. 8

Bore d (mm): 55
ODD (mm): 100
Width T (mm): 22.75
Inner B (mm): 21
Outer C (mm): 18
Dynamic (kN): 111
Static (kN): 106
Speed (RPM): 6700

30212No. 9

Bore d (mm): 60
ODD (mm): 110
Width T (mm): 23.75
Inner B (mm): 22
Outer C (mm): 19
Dynamic (kN): 120
Static (kN): 114
Speed (RPM): 6000

30213No. 10

Bore d (mm): 65
ODD (mm): 120
Width T (mm): 24.75
Inner B (mm): 23
Outer C (mm): 20
Dynamic (kN): 141
Static (kN): 134
Speed (RPM): 5600

30214No. 11

Bore d (mm): 70
ODD (mm): 125
Width T (mm): 26.75
Inner B (mm): 24
Outer C (mm): 21
Dynamic (kN): 155
Static (kN): 156
Speed (RPM): 5300

30215No. 12

Bore d (mm): 75
ODD (mm): 130
Width T (mm): 27.75
Inner B (mm): 25
Outer C (mm): 22
Dynamic (kN): 171
Static (kN): 176
Speed (RPM): 5000

30216No. 13

Bore d (mm): 80
ODD (mm): 140
Width T (mm): 28.75
Inner B (mm): 26
Outer C (mm): 22
Dynamic (kN): 184
Static (kN): 183
Speed (RPM): 4800

30217No. 14

Bore d (mm): 85
ODD (mm): 150
Width T (mm): 30.5
Inner B (mm): 28
Outer C (mm): 24
Dynamic (kN): 216
Static (kN): 220
Speed (RPM): 4300

30218No. 15

Bore d (mm): 90
ODD (mm): 160
Width T (mm): 32.5
Inner B (mm): 30
Outer C (mm): 26
Dynamic (kN): 240
Static (kN): 245
Speed (RPM): 4000

Tapered roller bearing dimensions and load ratings
No.	Series	Bore d (mm)	ODD (mm)	Width T (mm)	Inner B (mm)	Outer C (mm)	Dynamic (kN)	Static (kN)	Speed (RPM)
1	30204	20	47	15.25	14	12	34.1	28	15000
2	30205	25	52	16.25	15	13	38.1	33.5	13000
3	30206	30	62	17.25	16	14	50	44	11000
4	30207	35	72	18.25	17	15	63.2	56	9500
5	30208	40	80	19.75	18	16	75.8	68	8500
6	30209	45	85	20.75	19	16	81.6	76.5	8000
7	30210	50	90	21.75	20	17	93.1	91.5	7500
8	30211	55	100	22.75	21	18	111	106	6700
9	30212	60	110	23.75	22	19	120	114	6000
10	30213	65	120	24.75	23	20	141	134	5600
11	30214	70	125	26.75	24	21	155	156	5300
12	30215	75	130	27.75	25	22	171	176	5000
13	30216	80	140	28.75	26	22	184	183	4800
14	30217	85	150	30.5	28	24	216	220	4300
15	30218	90	160	32.5	30	26	240	245	4000

Showing 1 to 15 of 108 entries

Note: All dimensions are in millimeters (mm) unless otherwise specified. Load ratings are calculated according to ISO standards. For custom requirements or CAD file requests, please contact our engineering department directly.

Frequently Asked Questions

Tapered roller bearings are used wherever a shaft carries both radial load and axial thrust at the same time. Common applications include industrial gearboxes, wheel hubs, mining crushers, agricultural machinery, cement plant equipment, and machine tool spindles.

Four components: the outer ring (cup), the inner ring (cone), the tapered rollers, and the cage. The cup and cone are separable, so each can be mounted independently onto the shaft and into the housing.

The separable design allows the cup to be fitted into the housing and the cone assembly onto the shaft independently. This simplifies installation, makes alignment easier, and allows precise preload to be set during assembly.

Preload is the controlled axial force applied to a bearing during installation to eliminate internal play. In tapered roller bearings, preload can be precisely adjusted because the cup and cone mount separately. Correct preload directly affects shaft positioning accuracy and bearing service life.

Both radial load (perpendicular to the shaft) and axial load (along the shaft) simultaneously. The ratio of radial to axial capacity depends on the contact angle of the bearing — a larger contact angle handles more axial load.

The angle between the bearing axis and the line of contact between roller and raceway. A larger contact angle means higher axial load capacity. The contact angle is selected based on the load conditions of the specific application.

SAE 52100 high-carbon chromium bearing steel for the rings and rollers. This grade provides the hardness, toughness, and fatigue resistance needed for long service life under high combined loads. At V-CUBE, all rings and rollers are manufactured from SAE 52100 steel with no substitution on raw material.

Service life depends on correct specification, proper installation, and appropriate lubrication. When all three are right, tapered roller bearings are among the longest-lasting bearing types in heavy industrial use. Crowned roller profiles and optimised flange finish at V-CUBE contribute further to extended service intervals.

The most common causes are incorrect preload at installation, contaminated or insufficient lubrication, shaft misalignment, and operating beyond the bearing's rated load. Most failures are preventable with correct specification and installation practice.

Yes. V-CUBE bearings are manufactured to ISO dimensional standards and are direct replacements for equivalent series from established premium import brands. No changes to shaft dimensions, housing dimensions, or maintenance procedures are required.