Crossed Tapered Roller Bearings Introduction
| High Rigidity & Precision Solutions
Crossed tapered roller bearings are precision-engineered bearings designed to support radial, axial, and moment loads simultaneously within a compact structure. Their unique crossed roller arrangement ensures line contact between rollers and raceways, delivering superior rigidity, load capacity, and positioning accuracy compared with conventional bearing solutions. These features make them an excellent choice for industries that demand high precision, compact design, and reliable long-term performance.
Key Features & Advantages
High Load-Bearing Capacity
Tapered rollers in crossed alignment allow the bearing to carry heavy loads from multiple directions at once.
Superior Rigidity & Accuracy
Minimal elastic deformation under stress ensures high positioning accuracy, ideal for rotary tables and precision spindles.
Compact and Space-Saving Design
One crossed tapered roller bearing can replace multiple standard bearings, reducing installation space and weight.
Stable & Smooth Rotation
Optimized roller geometry minimizes friction and vibration, supporting smooth and quiet operation.
Customizable Options
Available with different preload levels, cage materials (steel, brass, or engineering plastics), and special surface treatments for harsh environments.
Typical Applications
Crossed tapered roller bearings are widely applied in industries where rigidity, precision, and compactness are critical:
Machine Tools – CNC rotary tables, indexing units, and grinding spindles
Robotics & Automation – robot joints, actuators, and precision positioning systems
Aerospace & Defense – radar antennas, satellite systems, and weapon platforms
Medical & Optical Devices – surgical robots, diagnostic imaging machines, and optical alignment instruments
Energy & Heavy Machinery – wind turbine yaw and pitch systems, marine navigation, and construction equipment
Product Catalog
| Dimensions (mm) | Bearing Type Code | ||||||
| d | D | B | r | Timken | SKF | NACHI | URB |
| 150 | 230 | 30 | 1 | - | BFKB353243/HA4 | - | - |
| 160 | 240 | 30 | 1.1 | - | BFKB353240/HA4 | - | - |
| 200 | 280 | 30 | 1.5 | - | - | 200XRN28 | - |
| 203.2 | 279 | 31.75 | 1.5 | XR496051 | 616093A | - | - |
| 203.2 | 279 | 31.75 | 1.5 | XR496052 | - | - | - |
| 240 | 300 | 30 | 1 | - | BFKB353203/HA4 | - | - |
| 250 | 310 | 25 | 1 | - | BFKB353212/HA4 | - | - |
| 250 | 350 | 40 | 1.3 | - | BFKB353215/HA4 | 250XRN35 | - |
| 300 | 400 | 36.492 | 1.5 | JXR637050 | - | - | - |
| 300 | 400 | 37 | 1.5 | XR637050 | 616094A | 300XRN50 | - |
| 300 | 480 | 60 | 1.5 | JXR678054 | - | - | - |
| 310 | 425 | 45 | 2.5 | JXR652050 | BFKB634097 | - | - |
| 330 | 457 | 63.5 | 3.3 | XR678052 | 615661A | - | - |
| 350 | 470 | 50 | 3.3 | - | BFKB353216/HA4 | 350XRN47 | - |
| 370 | 495 | 50 | 3.3 | JXR699050 | - | - | - |
| 400 | 480 | 40 | 1.1 | - | BFKB353224/HA4 | - | - |
| 400 | 550 | 60 | 2.5 | - | BFKB353219/HA4 | 400XRN55 | - |
| 432.03 | 571.5 | 38.1 | 3.3 | XR736052 | - | - | - |
| 457.2 | 609.6 | 63.5 | 3.3 | XR766051 | 615894A | 0457XRN060 | XD.10.0457P5 |
| 424.95 | 614.924 | 65 | - | XR766052 | - | - | - |
| 580 | 760 | 80 | 3.3 | XR820060 | 615662A | 580XRN76 | XD.10.0580P5 |
| 580 | 760 | 80 | 6.4 | XR820061 | - | - | - |
| 600 | 830 | 80 | 6.4 | XR836050 | - | 600XRN83 | - |
| 685.8 | 914.4 | 79.375 | 6.4 | XRA844050 | - | - | - |
| 685.8 | 914.4 | 79.375 | 3.3 | XR855053 | 615659A | 0685XRN091 | XD.10.0686P5 |
| 685.8 | 914.4 | 79.375 | - | XR855056 | - | - | - |
| 901.7 | 1117.6 | 82.555 | 3.3 | XR882054 | - | - | - |
| 901.7 | 1117.6 | 82.555 | 3.3 | XR882055 | 615895A | 0901XRN112 | XD.10.0902P5 |
| 939.8 | 1117.6 | 82.55 | 3.3 | XR882058 | - | - | - |
| 950 | 1170 | 85 | 3 | - | BFKB353251/HA4 | - | - |
| 1028.7 | 1327.15 | 114.3 | 3.3 | XR889058 | BFKB353282/HA4 | 1028XRN132 | XD.10.1029P5 |
| 1028.7 | 1327.15 | 95.25 | 3.3 | XR889059 | - | - | - |
| 1028.7 | 1327.15 | 114.3 | 3.3 | XR889060 | - | - | - |
| 1270 | 1524 | 95.25 | 1.8 | - | 615897A | - | - |
| 1549.4 | 1828.8 | 101.6 | 3.3 | XR897051 | 615898A | - | XD.10.1549P5 |
| 1879.6 | 2197.1 | 101.6 | 5.4 | XR903054 | 615899A | - | XD.10.1880P5 |
| 2463.8 | 2819.4 | 114.3 | 5.4 | - | 634078A | - | - |
Why Choose Our Crossed Tapered Roller Bearings?
Advanced Manufacturing – precision grinding, optimized roller geometry, and strict quality control.
Durability & Reliability – long service life even under heavy combined loads.
Customized Engineering – tailored designs for specific applications, including large-diameter or compact versions.
Global Supply Capability – trusted by industries worldwide for consistency and performance.
FAQ – Crossed Tapered Roller Bearings
01.What are crossed tapered roller bearings?
02.What is the difference between crossed tapered roller bearings and crossed roller bearings?
03.Why are crossed tapered roller bearings ideal for CNC rotary tables?
In CNC rotary tables, precision and stability are critical. Crossed tapered roller bearings provide:
High rigidity for accurate positioning.
Compact design that saves installation space.
High-speed capability with stable performance.
Excellent resistance to tilting moments, essential for heavy machining tasks.
This makes them the preferred solution for high-precision machine tools.
04.Can crossed tapered roller bearings operate at high speed?
05.What materials are available for crossed tapered roller bearings?
Depending on the application, crossed tapered roller bearings can be manufactured from:
- Chrome steel for general high-load applications.
- Stainless steel for medical devices, food processing, and corrosive environments.
- Hybrid ceramic rollers for ultra-high-speed or low-lubrication applications.
Special surface treatments such as black oxide or nickel plating are also available for anti-rust and wear resistance.
06.Can crossed tapered roller bearings be customized?
Yes. Manufacturers can design custom crossed tapered roller bearings for large-diameter rotary tables, compact indexing units, or special environmental conditions. Options include custom preload, sealing systems, lubrication methods, and material selection to meet specific customer requirements.
|
Model Number |
Main dimensions (mm) |
Basic dynamic load rating |
Limit speed ( Oil) r/m |
Weight (Kg) |
Exchange model |
|||||||
|
Inner ring d(mm) |
Outer ring D(mm) |
Width T(mm) |
Chamfer r(min) |
Radial Cr(KN) |
Axial Ca(KN) |
SKF |
NACHI |
URB |
PSL |
|||
|
XR496051 |
203.2 |
279.4 |
31.75 |
1.5 |
51.2 |
61.4 |
800 |
6.5 |
616093A |
/ |
/ |
/ |
|
XR678052 |
330.2 |
457.2 |
63.5 |
3 |
100 |
123 |
620 |
35 |
615661A |
300XRN50 |
/ |
PSL912-309A |
|
XR766051 |
457.2 |
609.6 |
63.5 |
3 |
141 |
178 |
520 |
51 |
615894A |
0457XRN060 |
XD.10.0457P5 |
PSL912-308A |
|
XR820060 |
580 |
760 |
80 |
5 |
215 |
234 |
300 |
100 |
615662A |
580XRN76 |
XD.10.0580P5 |
PSL912-304A |
|
XR855053 |
685.8 |
914.4 |
79.375 |
3 |
270 |
343 |
260 |
150 |
615659A |
0685XRN091 |
XD.10.0686P5 |
PSL912-305A |
|
XR882055 |
901.7 |
1117.6 |
82.55 |
3 |
300 |
395 |
200 |
185 |
615895A |
0901XRN112 |
XD.10.0902P5 |
PSL912-306A |
|
XR889058 |
1028.7 |
1327.15 |
114.3 |
3 |
405 |
534 |
160 |
400 |
BFKB353282/HA4 |
1028XRN132 |
XD.10.1029P5 |
PSL912-307A |
|
XR897051 |
1549.4 |
1828.8 |
101.6 |
3 |
516 |
698 |
80 |
500 |
615898A |
/ |
XD.10.1549P5 |
/ |
|
JXR637050 |
300 |
400 |
37 |
1.5 |
63 |
80.1 |
720 |
13 |
/ |
/ |
/ |
/ |
|
JXR652050 |
310 |
425 |
45 |
2.5 |
82.2 |
102 |
640 |
20 |
/ |
/ |
/ |
/ |
|
JXR699050 |
370 |
495 |
50 |
3 |
93.6 |
119 |
600 |
30 |
/ |
/ |
/ |
/ |
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