| Number | d(mm) | D(mm) | B(mm) |
| 320 SERIE | |||
| 32004X | 20.00 | 42.00 | 15.00 |
| 32005X | 25.00 | 47.00 | 15.00 |
| 32006X | 30.00 | 55.00 | 17.00 |
| 32007X | 35.00 | 62.00 | 18.00 |
| 32008X | 40.00 | 68.00 | 19.00 |
| 32009X | 45.00 | 75.00 | 20.00 |
| 32010X | 50.00 | 80.00 | 20.00 |
| 32011X | 55.00 | 90.00 | 23.00 |
| 32012X | 60.00 | 95.00 | 23.00 |
| 32013X | 65.00 | 100.00 | 23.00 |
| 32014X | 70.00 | 110.00 | 25.00 |
| 32015X | 75.00 | 115.00 | 25.00 |
| 32016X | 80.00 | 125.00 | 29.00 |
| 32017X | 85.00 | 130.00 | 29.00 |
| 32018X | 90.00 | 140.00 | 32.00 |
| 32019X | 95.00 | 145.00 | 32.00 |
| 32020X | 100.00 | 150.00 | 32.00 |
| 32021X | 105.00 | 160.00 | 35.00 |
| 32022X | 110.00 | 170.00 | 38.00 |
| 32024X | 120.00 | 180.00 | 38.00 |
| 32026X | 130.00 | 200.00 | 45.00 |
| 32028X | 140.00 | 210.00 | 45.00 |
| 32030X | 150.00 | 225.00 | 48.00 |
| 32032X | 160.00 | 240.00 | 51.00 |
| 32034X | 170.00 | 260.00 | 57.00 |
| 32036X | 180.00 | 280.00 | 64.00 |
| 32038X | 190.00 | 290.00 | 64.00 |
| 32040X | 200.00 | 310.00 | 70.00 |
Longfei Bearing manufactures the complete 320 series metric single row tapered roller bearings, covering bore sizes from 32004 (20 mm) through 32040 (200 mm). Every bearing in this range is produced to the ISO 355 and DIN 720 standards, making the cone and cup assemblies internationally interchangeable with SKF, Timken, NSK, KOYO, and FAG equivalents.
The 320 series are metric-design tapered roller bearings featuring a medium contact angle (typically 10°–17°), which makes them particularly well suited to combined radial and axial loading. The tapered inner ring (cone) and outer ring (cup) can be mounted separately, simplifying installation, dismounting, and in-service inspection.Get more about 32004–32040 Metric Series Tapered Roller Bearings.
Separable assembly: The cone (inner ring + rollers + cage) and cup (outer ring) are independently mountable and interchangeable.
Medium contact angle: Optimised for combined radial and single-direction axial loads, especially in automotive drivetrain and transmission applications.
Crowned roller profile: Distributes load evenly across the full roller length, reducing stress concentration at roller ends and compensating for minor shaft misalignment.
ISO 355 compliance: Cone and cup of bearings sharing the same base number are internationally interchangeable.
The 32004–32040 series covers a broad range of demanding industrial and automotive applications:
Automotive & Commercial Vehicles: differential pinion shafts, transfer case shafts, gearbox output shafts, truck hub assemblies, axle bearings for passenger cars and heavy-duty trucks.
Industrial Machinery: conveyor drive rolls, gearboxes, pumps, compressors, agricultural equipment transmissions, and construction machinery swing drives.
Railway: axlebox bearing housings where compact medium-angle tapered designs are specified.
Due to their separable, adjustable design, these bearings are also commonly mounted in back-to-back (DB) or face-to-face (DF) paired arrangements to achieve rigidity and bidirectional axial load capacity.
Longfei Bearing's 320 series tapered roller bearings are produced at our Linqing Bearing Industrial Park facility. Our manufacturing process covers:
Raw material: GCr15 bearing steel with controlled carbon content for consistent hardness (HRC 60–64)
Heat treatment: Through-hardened cones and cups; cage options in stamped steel or machined brass
Dimensional tolerance: P0 (Normal) standard as default; P6, P5, and P4 precision classes available on request
Inspection: 100% dimensional checks; CMM verification for critical dimensions; surface roughness measurement on raceways and rolling surfaces
Certifications: ISO 9001 quality management system; product compliance with ISO 355 / DIN 720
This type of bearing is widely used in:
Wheel hub for light, industrial and agricultural vehicles
Gearing (transmission and differential)
Machine tool spindle
Power take off
1. Metric series
Metric tapered roller bearings are designed according to the European international standard ISO 492. They are divided into several subclasses according to their outer diameter and height.
This category uses standard classification method, combines load distribution under optimal speed and high performance, so it will be used in many applications.
2. Inch series according to the American AMBA design standards, mainly in the United States market.
They include detachable and replaceable components that can be easily adjusted in any application.
Longfei accepts OEM and ODM orders for the full 32004–32036 range. Custom bore/OD specifications, special cage materials, grease pre-fill, and private-label branding are available for qualified buyers.
To receive a quotation, provide the bearing number, required quantity, preferred tolerance class, and any special requirements. Our engineering team responds within 24 hours on business days.Contact us.
66 Panzhuang Bearing Industrial Park, Linqing City, Shandong Province, China.
+86 635 277 7999
Keywords:
Spherical Roller Bearings, Tapered Roller Bearing, Cylindrical Roller Bearings, Truck Hub BearingCopyright © Linqing Longfei Bearing Co., Ltd. All Rights Reserved. |
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