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







