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LM11910 Taper Roller Bearing for 3/4 inch Shafts - High-Quality GCr15 Steel from China Suppliers & Factory

Material: The inner and outer rings of our bearings are crafted from high-quality bearing steel, specifically high carbon chromium bearing steel (GCr15). This material is renowned for its exceptional strength, hardness, and outstanding wear and fatigue resistance. As a leading manufacturer and supplier in China, our factory ensures that each bearing meets the highest standards of durability and performance, making them ideal for various applications.

    Bearing Details & Technical Specifications

    Item No. LM11910 (Inch)
    Bearing Type Taper roller bearing (Inch)
    Material Chrome steel GCr15
    Precision Rating P0, P2, P5, P6, P4
    Clearance C0, C2, C3, C4, C5
    Inner Diameter 19.05 mm
    Outer Diameter 45.237 mm
    Thickness / Width 12.065 mm / 15.494 mm
    Row Number Single Row
    Basic Dynamic Load (Cr) 10,100 N
    Basic Static Load (Cor) 32,000 N
    Dynamic Thrust Load 5,220 N
    Brand / Vibration JITO or OEM | ZV1, ZV2, ZV3, or customized
    Key Features • Long service life with premium chrome steel construction
    • Low operational noise via strict quality control
    • High-load carrying capacity through advanced technical engineering
    • Highly competitive price-to-performance value
    • OEM & custom engineering services offered
    Applications Automotive wheel hubs, rolling mills, mining, metallurgy, plastic machinery, and heavy equipment
    Packaging Options Pallet, wooden case, commercial individual box, or custom client packaging

    Performance Characteristics

    Strong Load-Bearing Capacity

    Engineered to support substantial radial loads and unidirectional axial loads simultaneously, making it optimal for complex combined load environments.

    High Structural Rigidity

    Maintains superior rotational accuracy under load, ensuring continuous smooth machine operation while significantly reducing operating vibration and noise.

    Optimized High-Speed Output

    Precision-engineered geometry and raceway finishing allow the bearing to satisfy demanding high-speed application requirements reliably.

    Application Fields

    Automotive Industry

    Widely adopted in vehicle front wheels, differential units, pinion shaft assemblies, trailer axles, and automobile wheel hub units to securely carry vehicle weight while ensuring reliable wheel rotation.

    Industrial Machinery

    Critical for industrial conveyor belt rollers, reduction gearboxes, and machine tool spindles, built to withstand continuous operational tension and intense machining cutting forces.

    Product Description & Suffix Standards

    1. Taper Roller Bearing Structure

    Tapered roller bearings feature separable inner and outer rings with tapered raceways. Designed in single-row, double-row, and four-row configurations depending on roller arrangement. Single row tapered roller bearings accommodate radial and axial loads in one direction; because radial loads generate an internal axial force component, they are commonly mounted in pairs to counterbalance opposite axial forces.

    2. Mounting & Versatility

    The separable design allows the inner ring assembly (cone with rollers and cage) to be mounted separately from the outer ring (cup). This structural versatility provides ease of assembly and high adaptability across automobiles, metallurgy, rolling mills, mining, and plastics processing equipment.

    3. Tapered Roller Bearing Suffix Nomenclature

    A: Internal structure modification
    B: Increased contact angle design
    X: External dimensions conform to international standards
    CD: Double outer ring with oil hole or oil groove
    TD: Double inner ring with tapered bore

    Related 30300 Series Tapered Roller Bearings Catalogue

    Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (N) Limiting Speeds (r/min) Weight (kg)
    d D T B C r (min) r1 (min) r2 (min) 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 0.08
    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 0.16
    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 0.26
    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 0.39
    32306 72 28.75 27 23 1.5 1.5 0.6 80000 72000 7000 10000 0.55
    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 0.33
    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 0.65

    To view full catalogue models and specifications, please visit www.jito.cc

    Our Advantages & Service Guarantee

    Tailored Solution

    We communicate closely with clients to understand precise operational demands, delivering optimized engineering solutions tailored to operating conditions.

    Strict Quality Control

    Fully compliant with ISO standards. Professional Q/C staff, high-precision instruments, and full-process inspection ensure zero-defect bearing reliability.

    Standard Packaging

    Standardized export packing and environment-protected materials. Custom boxes, private labelling, and barcodes are readily available upon request.

    Reliable Logistics

    Cost-effective ocean freight for heavy shipments, with rapid airfreight and express options available to accommodate urgent client timelines.

    12-Month Warranty

    All bearings are backed by a comprehensive 12-month quality warranty against manufacturing defects from the shipping date.

    Frequently Asked Questions (FAQ)

    What types of loads can single row tapered roller bearings support?
    Single row tapered roller bearings are engineered to withstand high combined loads, specifically large radial loads simultaneously with unidirectional axial forces. They are typically mounted in opposing pairs to counterbalance internal axial force components.
    What is the manufacturing material used for LM11910 bearings?
    LM11910 and related tapered roller bearings are precision-crafted from high-grade Chrome Steel GCr15, ensuring high wear resistance, exceptional fatigue strength, and extended service life.
    What does the bearing suffix 'B' indicate in technical specifications?
    In standard tapered roller bearing nomenclature, suffix 'B' signifies an increased contact angle, which enhances the bearing's capability to withstand higher axial thrust loads.
    Are custom branding and OEM dimensions supported?
    Yes, we provide comprehensive OEM services including custom dimensions, special precision grades (P0, P2, P5, P6, P4), custom vibration levels (ZV1–ZV3), and customized packaging/branding.
    What primary applications utilize LM11910 and 30300 series bearings?
    These bearings are primarily utilized in automotive wheel hubs, differential pinions, trailer axles, industrial gearboxes, rolling mills, mining equipment, and machine tool spindles.
    What is the warranty coverage on your bearing products?
    We provide a 12-month standard warranty from the date of shipment against defects in materials and manufacturing workmanship under proper installation and recommended operating conditions.

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