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.