Heavy Duty Bearing XR678052 Cross Tapered Roller Bearing 330.2x457.2x63.5mm for CNC & Machine Tools
The XR678052 Cross Tapered Roller Bearing is a heavy-duty, high-precision bearing designed for CNC machine tools, spindle systems, and large industrial equipment. With dimensions of 330.2mm inner diameter, 457.2mm outer diameter, and 63.5mm width, it follows imperial standards and is ideal for international and legacy machinery.
Engineered for extreme load conditions, this bearing delivers superior rigidity, high torque capacity, and stable rotational accuracy, making it suitable for demanding machining and heavy-duty applications.
- Model: XR678052
- Size: 330.2x457.2x63.5mm
- Type: Cross Tapered Roller Bearing
- Inch series heavy-duty design
- High rigidity and load capacity
- Inch Size Design: Suitable for imperial standard machinery and global equipment.
- Heavy Duty Structure: Designed for high-load and high-torque applications.
- Superior Rigidity: Cross tapered rollers minimize deformation under load.
- High Precision Performance: Ensures accurate and stable rotation.
- Combined Load Capacity: Supports radial, axial, and moment loads simultaneously.
- Long Service Life: Made from heat-treated high-grade bearing steel.
| Parameter | XR678052 |
|---|---|
| Model | XR678052 |
| Inner Diameter (ID) | 330.2 mm |
| Outer Diameter (OD) | 457.2 mm |
| Width (H) | 63.5 mm |
| Type | Cross Tapered Roller Bearing |
| Structure | Crossed Tapered Rollers |
| Material | Bearing Steel |
| Preload | Custom |
| Accuracy Class | P5 / P4 optional |
| Application | CNC Machines, Spindles, Heavy Equipment |
- CNC Machine Tools – High precision and stability for machining operations.
- Machine Tool Spindles – Strong rigidity for accurate rotation.
- Heavy Industrial Equipment – Reliable performance under extreme loads.
- Precision Rotary Systems – Smooth and consistent motion control.
| Timken | KG | d | D | B | r | Cr (KN) | Co (KN) | Cr (KN) | ||
|---|---|---|---|---|---|---|---|---|---|---|
| - | 4.9 | 150 | 230 | 30 | 1 | 95.2 | 156 | 111 | 279 | 1100 |
| - | 5.15 | 160 | 240 | 30 | 1.1 | 96.8 | 162 | 118 | 300 | 1000 |
| - | 6.7 | 200 | 280 | 30 | 1.5 | 102 | 175 | 120 | 320 | 9000 |
| XR496051 | 5.59 | 203.2 | 279.4 | 31.75 | 1.5 | 110 | 188 | 134 | 348 | 850 |
| XR496052 | 5.59 | 203.2 | 279.4 | 31.75 | 1.5 | 110 | 188 | 134 | 348 | 850 |
| - | 5.4 | 240 | 300 | 30 | 1 | 88 | 184 | 114 | 361 | 750 |
| - | 4.5 | 250 | 310 | 25 | 1 | 88 | 188 | 114 | 361 | 700 |
| - | 13 | 250 | 350 | 40 | 1.3 | 187 | 355 | 228 | 657 | 670 |
| JXR637050 | 12.5 | 300 | 400 | 36.492 | 1.5 | 183 | 355 | 223 | 657 | 560 |
| JXR637050 | 12.5 | 300 | 400 | 37 | 1.5 | 183 | 355 | 223 | 657 | 560 |
| JXR678054 | 38 | 300 | 480 | 60 | 1.5 | 258 | 495 | 35 | 920 | 600 |
| JXR652050 | 19.5 | 310 | 425 | 45 | 2.5 | 216 | 427 | 281 | 837 | 640 |
| JXR678052 | 32 | 330.2 | 457.2 | 63.5 | 3.3 | 264 | 515 | 312 | 954 | 620 |
| - | 27 | 350 | 470 | 50 | 3.3 | 308 | 635 | 376 | 1180 | 560 |
| JXR699050 | 30 | 370 | 495 | 50 | 3.3 | 93.6 | - | 119 | - | 600 |
| - | 15 | 400 | 480 | 40 | 1.1 | 216 | 497 | 281 | 957 | 430 |
| - | 46.5 | 400 | 550 | 60 | 2.5 | 429 | 920 | 523 | 1700 | 400 |
| XR736052 | 27.5 | 432.003 | 571.5 | 38.1 | 3.3 | 83 | 910 | 530 | 1600 | 400 |
| JXR766051 | 51 | 457.2 | 609.6 | 63.5 | 3.3 | 396 | 856 | 514 | 1680 | 420 |
| JXR766052 | 62 | 424.95 | 614.924 | 65 | 3.3 | 470 | 960 | 600 | 1720 | 380 |
| JXR820060 | 100 | 580 | 760 | 80 | 3.3 | 627 | 1380 | 765 | 2560 | 300 |
| JXR820061 | 100 | 580 | 760 | 80 | 6.4 | 627 | 1380 | 765 | 2560 | 300 |
| JXR836050 | 148 | 600 | 830 | 80 | 6.4 | 680 | 1460 | 820 | 2870 | 300 |
| JXR8444050 | 150 | 685.8 | 914.4 | 79.375 | 6.4 | 693 | 1660 | 900 | 3250 | 260 |
| JXR855053 | 150 | 685.8 | 914.4 | 79.375 | 3.3 | 693 | 1660 | 900 | 3250 | 260 |
| JXR855056 | 150 | 685.8 | 914.4 | 79.375 | 3.3 | 693 | 1660 | 900 | 3250 | 260 |
| JXR882054 | 185 | 901.7 | 1117.6 | 82.555 | 3 | 781 | 2060 | 1060 | 4290 | 200 |
| JXR882055 | 185 | 901.7 | 1117.6 | 82.555 | 3.3 | 781 | 2060 | 1060 | 4290 | 200 |
| JXR882058 | 158 | 939.8 | 1117.6 | 82.55 | 3 | 920 | 2580 | 1200 | 5000 | 200 |
| - | 215 | 950 | 1170 | 85 | 3 | 968 | 2690 | 1310 | 5600 | 215 |
| JXR889058 | 430 | 1028.7 | 1327.15 | 114.3 | 3.3 | 1230 | 3310 | 1600 | 6490 | 430 |
| JXR889059 | 358 | 1028.7 | 1327.15 | 95.25 | 3.3 | 1060 | 3100 | 1420 | 6020 | 450 |
| JXR889060 | 430 | 1028.7 | 1327.15 | 114.3 | 3.3 | 1230 | 3310 | 1600 | 6490 | 430 |
| - | 350 | 1270 | 1524 | 95.25 | 3.3 | 1300 | 3830 | 1760 | 2980 | 95 |
| JXR897051 | 500 | 1549.4 | 1828.8 | 101.6 | 3.3 | 1400 | 4510 | 1890 | 9400 | 80 |
| - | 675 | 1879.6 | 2197.1 | 101.6 | 5.4 | 1510 | 5240 | 2040 | 10900 | 43 |
| - | 1130 | 2463.8 | 2819.4 | 114.3 | 5.4 | 2330 | 8740 | 3150 | 18200 | 18200 |
- Heavy-Duty Bearing Expertise
- Precision Manufacturing & Tight Tolerances
- Reliable Performance in Extreme Conditions
- Customization & Global Delivery Support
Power your heavy-duty systems with XR678052 Cross Tapered Roller Bearing.
Contact GQZ Bearing today for pricing, samples, or technical consultation!
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