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32306 Taper roller bearing (Metric) 1.jpg
32306 Taper roller bearing (Metric) (2).jpg
32306 Taper roller bearing (Metric) (1).jpg

High Load Taper Roller Bearing 30*72*28.75 for Automobile & Construction | China Suppliers & Factory

Separable Design for Easy Maintenance: Our high-quality bearings feature a separable design, allowing for easy installation and disassembly. This innovative design simplifies the maintenance of mechanical structures, making it a preferred choice among suppliers and factories in China.

Robust Load-Bearing Capacity: Designed to handle combined loads efficiently, these bearings primarily support radial and axial loads, with a focus on radial forces. They can simultaneously accommodate radial and unidirectional axial forces. It is essential to note that while handling radial loads, an axial component force is created, usually necessitating an additional bearing to counterbalance the opposite axial force, ensuring optimal performance in factory applications.

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    Product Details

    Bearing Detail

    Item No. 32306 (Metric)
    Bearing Type Taper roller bearing (Metric)
    Material Chrome steel GCr15
    Precision P0, P2, P5, P6, P4
    Clearance C0, C2, C3, C4, C5
    Specification 30*72*27 mm
    Inner Ring Width 19 mm
    Outer Ring Width 14.5 mm
    Contact Angle 11.86°
    Basic Rated Dynamic Load 21357 lbf
    Basic Rated Static Load 19109 lbf
    Reference Speed 7500 r/min
    Limiting Speed 10000 r/min
    Brand JITO or OEM
    Separable Yes
    Bearing Features • Long-life with high quality
    • Low-noise with strict controlling the quality of JITO bearing
    • High-load by the advanced high-technical design
    • Competitive price with optimal value
    • OEM service offered to meet custom requirements
    Application Automobiles, rolling mills, mining, metallurgy, plastic machinery, and other industries
    Bearing Package Pallet, wooden case, commercial packaging or per customer requirement

    32306 Taper Roller Bearing Structural Features

    Separable Design

    The inner and outer rings of the bearing can be separated, which is convenient for installation and disassembly, and is conducive to simplifying the design and maintenance of mechanical structures.

    Can Bear Combined Loads

    Mainly bears radial and axial combined loads dominated by radial loads. It can bear radial force and axial force in a single direction at the same time. When bearing radial loads, an axial component force is generated, requiring a paired bearing to balance opposing thrust.

    Adjustable Clearance

    Internal clearance can be precisely adjusted during installation. Adjusting radial and axial clearance optimizes running accuracy, operational stability, and total service life under diverse conditions.

    Large Load Capacity

    Compared with angular contact ball bearings, load capacity is significantly higher due to line contact between the tapered rollers and raceways, supporting heavy impact and high loads.

    Limit Speed Characteristics

    Due to the contact surface area between rolling elements and raceways, structural friction is higher than deep groove ball bearings, resulting in a moderate, steady limiting speed optimized for heavy-load duty.

    Industrial Applications

    Automotive Industry

    Commonly used in automobile wheel hub bearings, especially on trucks and large buses requiring support for heavy chassis weight (radial load) and braking forces (axial load).

    Industrial Machinery

    Widely applied in machine tool spindles, gear reducers, mining machinery, metallurgical units, and plastics processing equipment requiring dual-load transmission stability.

    Engineering Machinery

    Utilized in excavators, loaders, cranes, and heavy-duty joints/transmission systems to endure severe operating environments and composite shock loads reliably.

    Agricultural Machinery

    Fitted on tractors and harvesters within drive assemblies and wheel supports to withstand rigorous field terrain and continuous radial/axial stresses.

    Related 30300 Series Tapered Roller Bearings Catalogue

    Bearing No. Boundary Dimensions (mm) Basic Load Ratings (N) Limiting Speeds (r/min) Weight (kg)
    d D T B C r r1 r2 Dynamic (Cr) Static (Cor) Grease Oil
    30202 15 35 11.75 11 10 0.6 0.6 0.15 14000 13000 11000 15000 0.053
    30302 42 14.25 13 11 1 1 0.3 23000 20000 9900 13000 0.098
    30203 17 40 13.25 12 11 1 1 0.3 20000 20000 9900 13000 0.080
    32203 40 17.25 16 14 1 1 0.3 26000 22000 9900 13000 0.108
    30303 47 15.25 14 12 1 1 0.3 28000 26000 9000 12000 0.134
    32303 47 20.25 16 14 1 1 0.3 27000 28000 9900 13000 0.102
    32004 20 42 15 15 12 0.6 0.6 0.15 27000 24000 9500 13000 0.097
    30204 47 15.25 14 12 1 1 0.3 29000 28000 8800 12000 0.127
    32204 47 19.25 18 15 1 1 0.3 39000 36000 8800 12000 0.160
    30304 52 16.25 15 13 1.5 1.5 0.6 35000 34000 8000 11000 0.169
    32304 52 22.25 21 18 1.5 1.5 0.6 48000 46000 8000 11000 0.245
    320/22 22 44 15 15 12 0.6 0.6 0.15 33000 28000 9000 12000 0.108
    302/22 50 15.25 14 12 1 1 0.3 27000 26000 8100 11000 0.141
    322/22 50 19.25 18 15 1 1 0.3 41000 36000 8100 11000 0.172
    303/22 56 17.25 16 14 1.5 1.5 0.6 36000 34000 7700 10000 0.209
    323/22 56 22.25 21 18 1.5 1.5 0.6 45000 43000 7600 10000 0.263
    32005 25 47 15 15 12 0.6 0.6 0.15 33000 27000 7900 11000 0.114
    33005 47 17 17 14 0.6 0.6 0.15 38000 31000 8000 11000 0.131
    30205 52 16.25 15 13 1 1 0.3 34000 31000 7300 9800 0.154
    32205 52 19.25 18 16 1 1 0.3 42000 37000 7300 9800 0.154
    33205 52 22 22 18 1 1 0.3 47000 43000 7300 9800 0.217
    30305 62 18.25 17 15 1.5 1.5 0.6 48000 45000 6700 8900 0.272
    31305 62 18.25 17 13 1.5 1.5 0.6 38000 36000 7500 11000 0.260
    32305 62 25.25 24 20 1.5 1.5 0.6 61000 57000 6700 8900 0.381
    320/28 28 52 16 16 12 1 1 0.3 36000 33000 7500 10000 0.146
    302/28 58 17.25 16 14 1 1 0.3 35000 33000 7000 9000 0.204
    322/28 58 20.25 19 16 1 1 0.3 44000 40000 6900 9300 0.236
    303/28 68 19.75 18 16 1.5 1.5 0.6 46000 44000 6000 8000 0.333
    323/28 68 25.75 24 21 1.5 1.5 0.6 64000 60000 6000 8000 0.453
    32906 30 47 12 12 9 0.6 0.6 0.15 24000 17000 7500 10000 0.073
    32006 55 17 17 13 1 1 0.3 45000 36000 6900 9200 0.166
    33006 55 20 20 16 1 1 0.3 50000 46000 6700 9000 0.208
    30206 62 17.25 16 14 1 1 0.3 48000 43000 6300 8400 0.241
    32206 62 21.25 20 17 1 1 0.3 64000 54000 6300 8400 0.241
    33206 62 25 25 20 1 1 0.3 75000 64000 6300 8400 0.344
    30306 72 20.75 19 16 1.5 1.5 0.6 60000 58000 5700 7600 0.408
    31306 72 20.75 19 16 1.5 1.5 0.6 57000 47000 6700 9500 0.390
    32306 72 28.75 27 23 1.5 1.5 0.6 80000 72000 7000 10000 0.550
    320/32 32 58 17 17 13 1 1 0.3 45000 36000 6500 8500 0.191
    302/32 65 18.25 17 15 1 1 0.3 40000 38000 6200 8200 0.258
    322/32 65 22.25 21 18 1 1 0.3 50000 46000 6200 8200 0.330
    332/32 65 26 26 21 1 1 0.3 71000 62000 6200 8300 0.404
    303/32 75 21.75 20 18 1.5 1.5 0.6 58000 54000 5500 7000 0.445
    323/32 75 29.75 28 25 1.5 1.5 0.6 98000 86000 5500 7200 0.650
    32907 35 55 14 14 12 0.6 0.6 0.15 39000 27000 6300 8500 0.123
    32007 62 18 18 14 1 1 0.3 50000 41000 6100 8100 0.224
    33007 62 21 21 17 1 1 0.3 63000 51000 5600 8000 0.267
    30207 72 18.25 17 15 1.5 1.5 0.6 61000 55000 5500 7400 0.344
    32207 72 24.25 23 19 1.5 1.5 0.6 85000 70000 5500 7400 0.457
    33207 72 28 28 22 1.5 1.5 0.6 100000 85000 5500 7400 0.461
    30307 80 22.75 21 18 2 1.5 0.6 75000 71000 5000 6600 0.540
    31307 80 22.75 21 15 2 1.5 0.6 61000 56000 6000 8500 0.520
    32307 80 32.75 31 25 2 1.5 0.6 11000 94000 6000 8500 0.800
    32908 40 62 15 15 12 0.6 0.6 0.15 34000 47000 5600 7500 0.161
    32008 68 19 19 15 1 1 0.3 50000 65000 5300 7100 0.273
    33008 68 22 22 18 1 1 0.3 59000 82000 5300 7100 0.312
    33108 75 26 26 21 1.5 1.5 0.6 79000 103000 5200 6900 0.494
    30208 80 19.75 18 16 1.5 1.5 0.6 61000 67000 4900 6600 0.435
    32208 80 24.75 23 19 1.5 1.5 0.6 79000 93000 4900 6600 0.558
    33208 80 32 32 25 1.5 1.5 0.6 103000 132000 4900 6600 0.728
    30308 90 25.25 23 20 2 1.5 0.6 91000 102000 4400 5900 0.769
    31308 90 25.25 23 17 2 1.5 0.6 81000 95000 5600 7500 0.720
    32308 90 35.25 33 27 2 1.5 0.6 110000 140000 4200 5600 1.080

    For more complete sizes and product options, please visit our official website: www.jito.cc

    Our Advantages

    Solution

    At the beginning, we will have a communication with our customers on their demand, then our engineers will work out an optimum solution based on the customers’ demand and condition.

    Quality Control (Q/C)

    In accordance with ISO standards, we have professional Q/C staff, precision testing instruments and internal inspection system, the quality control is implemented in every process from material receiving to products packaging to ensure our bearings quality.

    Package

    Standardized export packing and environment-protected packing material are used for our bearings, the custom boxes, labels, barcodes etc. can also be provided according to our customer’s request.

    Logistic

    Normally, our bearings will be sent to the customers by ocean transportation due to its heavy weight, airfreight, express is also available if our customers need.

    Warranty

    We warrant our bearings to be free from defects in material and workmanship for a 12 months period from the shipping date, this warranty is voided by non-recommended use, improper installation or physical damage.

    Frequently Asked Questions (FAQ)

    1. What are the key dimensions of the 32306 taper roller bearing?

    The 32306 bearing has an inner diameter (bore) of 30 mm, an outer diameter of 72 mm, and an assembled total width of 27 mm (with an inner ring width of 19 mm and an outer ring width of 14.5 mm).

    2. What load types are 32306 tapered roller bearings best suited for?

    The 32306 bearing is engineered specifically to handle combined radial and axial loads (where radial loads dominate) acting in a single direction. They are typically installed in pairs to balance opposing axial component forces.

    3. Can the cone and cup of the 32306 bearing be mounted separately?

    Yes. The 32306 bearing features a fully separable design, allowing the inner ring (with roller assembly) and the outer ring to be mounted independently, simplifying assembly, maintenance, and clearance adjustment.

    4. What precision and internal clearance grades are available?

    Our 32306 bearings are available across precision ratings P0, P6, P5, P4, and P2, with radial/axial internal clearance options ranging from C0 to C5 to accommodate precise machinery tolerances.

    5. Does JITO provide customized OEM branding and packaging?

    Yes. We offer complete OEM services, including custom laser marking, specialized clearances, customized packaging boxes, barcodes, and pallet/wooden case export solutions tailored to customer requirements.

    6. What is the standard warranty period for this bearing series?

    All bearings are backed by a 12-month standard warranty against manufacturing and material defects from the date of shipment under recommended operating and installation conditions.

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