TIMKEN -Torrington HJ-12415448 Needle Roller bearing,Cylindrical Roller Radial Bearings-HJ Series 196,850 X 244,475 X 76,20 (mm)
Description
Fw Bore (nom.) inch | 7.7500 |
Fw Bore (nom.) mm | 196,850 |
D Outside Diameter (nom.) inch | 9.6250 |
D Outside Diameter (nom.) mm | 244,475 |
C/B Width (nom.) inch | 3.000 |
C/B Width (nom.) mm | 76,20 |
Limiting Speed rpm | 2 180 |
ra* Housing Fillet (max.) inch | 0.12 |
ra* Housing Fillet (max.) mm | 3,0 |
Used with Inner Ring Designation † | IR-10412448 |
Weight | 8.37kg |
DIMENSIONS AND LOAD RATINGS | |||||||||||||||
Fw Bore | D Outside Diameter | C/B Width | Bearing Designation | Load Ratings | Limiting Speed | ra* Housing Fillet | Used with Inner Ring Designation † | F Housing Shoulder Diameter | |||||||
Basic Dynamic Cr
| Basic Static CO
| ||||||||||||||
ISO | ISO | ||||||||||||||
(nom.) | (nom.) | (nom.) | T | 281 | 76 | (max.) | ±1⁄64 | ±0.4 | |||||||
inch | mm | inch | mm | inch | mm | lbf | lbf | lbf | rpm | inch | mm | inch | mm | ||
3.7500
| 95,250
| 4.7500
| 120,650
| 2.000
| 50,80
| HJ-607632
| 32 900
| 44 200
| 91 000
| 4 540
| 0.10
| 2,5
| IR-506032 IR-526032 | 4 3⁄8
| 111,1
|
4.0000
| 101,600
| 5.0000
| 127,000
| 2.000
| 50,80
| HJ-648032
| 34 300
| 46 000
| 98 000
| 4 230
| 0.10
| 2,5
| IR-526432 IR-546432 IR-566432 | 4 5⁄8
| 117,5
|
4.2500
| 107,950
| 5.2500
| 133,350
| 2.000
| 50,80
| HJ-688432
| 34 700
| 46 500
| 102 000
| 3 970
| 0.10
| 2,5
| IR-566832 IR-606832 | 4 7⁄8
| 123,8
|
4.5000 4.5000 | 114,300 114,300 | 6.0000 6.0000 | 152,400 152,400 | 2.250 2.500 | 57,15 63,50 | HJ-729636 HJ-729640 | 48 000 53 400 | 64 400 71 700 | 116 000 134 000 | 3 850 3 850 | 0.10 0.10 | 2,5 2,5 | IR-607236 IR-607240 | 5 7⁄16 5 7⁄16 | 138,1 138,1 |
5.0000 5.0000
5.0000 | 127,000 127,000
127,000 | 6.5000 6.5000
6.5000 | 165,100 165,100
165,100 | 2.000 2.250
2.500 | 50,80 57,15
63,50 | HJ-8010432 HJ-8010436
HJ-8010440 | 46 100 52 000
57 800 | 61 200 69 400
77 300 | 113 000 133 000
152 000 | 3 430 3 430
3 430 | 0.10 0.10
0.10 | 2,5 2,5
2,5 | — IR-648036 IR-688036 IR-648040 | 5 15⁄16 5 15⁄16
5 15⁄16 | 150,8 150,8
150,8 |
5.5000 5.5000 | 139,700 139,700 | 7.0000 7.0000 | 177,800 177,800 | 2.500 3.000 | 63,50 76,20 | HJ-8811240 HJ-8811248 | 58 600 69 500 | 78 600 93 300 | 160 000 199 000 | 3 120 3 120 | 0.10 0.10 | 2,5 2,5 | IR-728840 IR-728848 | 6 7⁄16 6 7⁄16 | 163,5 163,5 |
5.7500 | 146,050 | 7.2500 | 184,150 | 3.000 | 76,20 | HJ-9211648 | 70 600 | 94 800 | 207 000 | 2 960 | 0.12 | 3,0 | IR-769248 | 6 11⁄16 | 169,9 |
6.0000 6.0000 | 152,400 152,400 | 7.5000 7.5000 | 190,500 190,500 | 2.500 3.000 | 63,50 76,20 | HJ-9612040 HJ-9612048 | 61 900 74 000 | 83 000 99 300 | 178 000 224 000 | 2 830 2 830 | 0.12 0.12 | 3,0 3,0 | IR-809640 IR-809648 | 6 15⁄16 6 15⁄16 | 176,2 176,2 |
6.5000 6.5000 | 165,100 165,100 | 8.0000 8.0000 | 203,200 203,200 | 2.500 3.000 | 63,50 76,20 | HJ-10412840 HJ-10412848 | 64 100 76 300 | 86 000 102 000 | 191 000 237 000 | 2 600 2 600 | 0.12 0.12 | 3,0 3,0 | IR-8810440 IR-8810448 | 7 7⁄16 7 7⁄16 | 188,9 188,9 |
7.2500 | 184,150 | 9.1250 | 231,775 | 3.000 | 76,20 | HJ-11614648 | 88 600 | 118 300 | 253 000 | 2 340 | 0.12 | 3,0 | IR-9611648 | 8 1⁄2 | 215,9 |
7.7500 | 196,850 | 9.6250 | 244,475 | 3.000 | 76,20 | HJ-12415448 | 92 000 | 123 000 | 271 000 | 2 180 | 0.12 | 3,0 | IR-10412448 | 9 | 228,6 |
8.2500 | 209,550 | 10.1250 | 257,175 | 3.000 | 76,20 | HJ-13216248 | 95 400 | 127 000 | 290 000 | 2 040 | 0.12 | 3,0 | IR-11213248 | 9 1⁄2 | 241,3 |
8.7500 | 222,250 | 10.6250 | 269,875 | 3.000 | 76,20 | HJ-14017048 | 98 600 | 130 000 | 308 000 | 1 920 | 0.16 | 4,0 | IR-12014048 | 10 | 254,0 |
9.2500 | 234,950 | 11.1250 | 282,575 | 3.000 | 76,20 | HJ-14817848 | 101 000 | 136 000 | 326 000 | 1 810 | 0.16 | 4,0 | IR-12814848 | 10 1⁄2 | 266,7 |
BEARING MOUNTING DIMENSIONS | ||||||||||||||||
Mounting Dimensions, Clearance Fit | Bearing Designation | Mounting Dimensions, Tight Transition Fit | ||||||||||||||
Inch Mounting | Metric Mounting(mm) | Inch Mounting | Metric Mounting(mm) | |||||||||||||
S Shaft Raceway Diameter | H Housing Bore Diameter | S Shaft Raceway Diameter | H Housing Bore Diameter | S Shaft Raceway Diameter | H Housing Bore Diameter | S Shaft Raceway Diameter | H Housing Bore Diameter | |||||||||
max. | min. | min. | max. | max. | min. | min. | max. | max. | min. | min. | max. | max. | min. | min. | max. | |
3.7500 | 3.7491 | 4.7500 | 4.7516 | 95,250 | 95,227 | 120,650 | 120,691 | HJ-607632 | 3.7487 | 3.7477 | 4.7478 | 4.7494 | 95,214 | 95,191 | 120,594 | 120,635 |
4.0000 | 3.9991 | 5.0000 | 5.0016 | 101,600 | 101,577 | 127,000 | 127,041 | HJ-648032 | 3.9986 | 3.9977 | 4.9978 | 4.9994 | 101,564 | 101,541 | 126,944 | 126,985 |
4.2500 | 4.2491 | 5.2500 | 5.2516 | 107,950 | 107,927 | 133,350 | 133,391 | HJ-688432 | 4.2486 | 4.2477 | 5.2478 | 5.2494 | 107,914 | 107,891 | 133,294 | 133,335 |
4.5000 4.5000 | 4.4991 4.4991 | 6.0000 6.0000 | 6.0016 6.0016 | 114,300 114,300 | 114,277 114,277 | 152,400 152,400 | 152,441 52,441 | HJ-729636 HJ-729640 | 4.4986 4.4986 | 4.4977 4.4977 | 5.9978 5.9978 | 5.9994 5.9994 | 114,264 114,264 | 114,241 114,241 | 152,344 152,344 | 152,385 152,385 |
5.0000 5.0000 5.0000 | 4.9990 4.9990 4.9990 | 6.5000 6.5000 6.5000 | 6.5016 6.5016 6.5016 | 127,000 127,000 127,000 | 126,975 126,975 126,975 | 165,100 165,100 165,100 | 165,141 165,141 165,141 | HJ-8010432 HJ-8010436 HJ-8010440 | 4.9984 4.9984 4.9984 | 4.9974 4.9974 4.9974 | 6.4978 6.4978 6.4978 | 6.4994 6.4994 6.4994 | 126,959 126,959 126,959 | 126,934 126,934 126,934 | 165,044 165,044 165,044 | 165,085 165,085 165,085 |
5.5000 5.5000 | 5.4990 5.4990 | 7.0000 7.0000 | 7.0016 7.0016 | 139,700 139,700 | 139,675 139,675 | 177,800 177,800 | 177,841 77,841 | HJ-8811240 HJ-8811248 | 5.4984 5.4984 | 5.4974 5.4974 | 6.9978 6.9978 | 6.9994 6.9994 | 139,659 139,659 | 139,634 139,634 | 177,744 177,744 | 177,785 177,785 |
5.7500 | 5.7490 | 7.2500 | 7.2518 | 146,050 | 146,025 | 184,150 | 184,196 | HJ-9211648 | 5.7484 | 5.7474 | 7.2476 | 7.2494 | 146,009 | 145,984 | 184,089 | 184,135 |
6.0000 6.0000 | 5.9990 5.9990 | 7.5000 7.5000 | 7.5018 7.5018 | 152,400 152,400 | 152,375 152,375 | 190,500 190,500 | 190,546 190,546 | HJ-9612040 HJ-9612048 | 5.9984 5.9984 | 5.9974 5.9974 | 7.4976 7.4976 | 7.4994 7.4994 | 152,359 152,359 | 152,334 152,334 | 190,439 190,439 | 190,485 190,485 |
6.5000 6.5000 | 6.4990 6.4990 | 8.0000 8.0000 | 8.0018 8.0018 | 165,100 165,100 | 165,075 165,075 | 203,200 203,200 | 203,246 203,246 | HJ-10412840 HJ-10412848 | 6.4984 6.4984 | 6.4974 6.4974 | 7.9976 7.9976 | 7.9994 7.9994 | 165,059 165,059 | 165,034 165,034 | 203,139 203,139 | 203,185 203,185 |
7.2500 | 7.2488 | 9.1250 | 9.1268 | 184,150 | 184,120 | 231,775 | 231,821 | HJ-11614648 | 7.2480 | 7.2468 | 9.1226 | 9.1244 | 184,099 | 184,069 | 231,714 | 231,760 |
7.7500 | 7.7488 | 9.6250 | 9.6268 | 196,850 | 196,820 | 244,475 | 244,521 | HJ-12415448 | 7.7480 | 7.7468 | 9.6226 | 9.6244 | 196,799 | 196,769 | 244,414 | 244,460 |
8.2500 | 8.2488 | 10.1250 | 10.1270 | 209,550 | 209,520 | 257,175 | 257,226 | HJ-13216248 | 8.2480 | 8.2468 | 10.1224 | 10.1244 | 209,499 | 209,469 | 257,109 | 257,160 |
8.7500 | 8.7488 | 10.6250 | 10.6270 | 222,250 | 222,220 | 269,875 | 269,926 | HJ-14017048 | 8.7480 | 8.7468 | 10.6224 | 10.6244 | 222,199 | 222,169 | 269,809 | 269,860 |
9.2500 | 9.2488 | 11.1250 | 11.1270 | 234,950 | 234,920 | 282,575 | 282,626 | HJ-14817848 | 9.2480 | 9.2468 | 11.1224 | 11.1244 | 234,899 | 234,869 | 282,509 | 282,560 |
TIMKEN-Torrington HJ-12415448 Needle Roller Bearing
The TIMKEN-Torrington HJ-12415448 is a full complement needle roller bearing designed to handle heavy radial loads with precision and reliability in applications where space is limited. As part of TIMKEN’s comprehensive line of needle roller bearings, the HJ-12415448 is engineered for durability, high performance, and efficient operation, making it ideal for demanding industrial, automotive, and construction machinery applications.
Design and Construction
The HJ-12415448 is a full complement bearing, which means it does not use a cage, allowing it to incorporate the maximum number of needle rollers. This design significantly enhances the bearing’s load-bearing capacity by maximizing the contact area between the needle rollers and raceways. The bearing features an outer diameter of approximately 12 inches (304.8 mm), a length of 15.4 inches (391.16 mm), and a wall thickness of 4.8 inches (121.92 mm). This combination provides a robust, space-efficient solution for applications requiring high load capacity in compact spaces.。
The bearing’s outer ring is made from high-quality, case-hardened steel, providing excellent resistance to wear, impact, and fatigue. This ensures the bearing can withstand the high stresses encountered in challenging operational environments. The densely packed needle rollers are precisely aligned, ensuring even load distribution and minimizing internal friction. This reduces heat generation and stress concentrations within the bearing, contributing to smoother operation, lower operating temperatures, and an extended service life. The absence of an inner ring allows the bearing to be mounted directly on the shaft, simplifying installation and conserving space.
Performance Features
High Load Capacity: The full complement design of the HJ-12415448 allows it to support substantial radial loads efficiently. By incorporating the maximum number of needle rollers, the bearing distributes the load more evenly, enhancing its ability to handle continuous or shock loading conditions.
Space-Efficient Design: The compact form factor of the HJ-12415448 is particularly advantageous in applications where space constraints are a primary concern. Its design allows for high load capacity without the need for a larger bearing, making it an excellent choice for systems where minimizing overall size is critical.
Durability and Reliability: Constructed from high-grade materials, the HJ-12415448 offers exceptional resistance to wear, impact, and fatigue, even under heavy-duty conditions. Its design minimizes internal friction, which not only reduces energy consumption but also extends the bearing’s operational life.
Ease of Installation: The absence of an inner ring allows for direct mounting on the shaft, simplifying assembly and reducing the overall footprint of the bearing system. This feature is particularly useful in applications where quick maintenance and efficient assembly processes are essential.
Applications
The HJ-12415448 is well-suited for a variety of heavy-duty applications, including:
- Industrial Gearboxes:Its high load capacity makes it ideal for gearboxes in industrial machinery that require reliable, long-lasting components to handle heavy loads.
- Automotive Transmissions:In automotive applications, the compact design and robust performance of the HJ-12415448 make it a perfect fit for transmission systems where space is limited but durability is essential.
- Construction Equipment:The bearing’s ability to handle high radial loads and resist wear makes it suitable for use in construction machinery such as cranes, loaders, and excavators, which operate under demanding conditions.
Heavy-Duty Pumps and Conveyors: The HJ-12415448 performs well in continuous loading applications such as heavy-duty pumps and conveyors, where it helps maintain efficient, smooth operation with minimal downtime.
Conclusion
The TIMKEN-Torrington HJ-12415448 needle roller bearing is a high-capacity, durable solution designed for demanding applications that require exceptional radial load support in compact spaces. Its full complement design maximizes load-bearing capacity, while its robust construction ensures reliable performance under heavy loads. This bearing exemplifies TIMKEN’s commitment to delivering innovative and high-quality bearing solutions tailored to the rigorous demands of modern industrial and automotive environments. Whether used in heavy machinery, automotive systems, or industrial equipment, the HJ-12415448 provides the durability, efficiency, and performance needed to keep operations running smoothly and effectively.