TIMKEN -Torrington HJ-8811248 Needle Roller bearing,Cylindrical Roller Radial Bearings-HJ Series 139,700 X 177,800 X 76,20 (mm)
Description
Fw Bore (nom.) inch | 5.5000 |
Fw Bore (nom.) mm | 139,700 |
D Outside Diameter (nom.) inch | 7.0000 |
D Outside Diameter (nom.) mm | 177,800 |
C/B Width (nom.) inch | 3.000 |
C/B Width (nom.) mm | 76,20 |
Limiting Speed rpm | 3 120 |
ra* Housing Fillet (max.) inch | 0.10 |
ra* Housing Fillet (max.) mm | 2,5 |
Used with Inner Ring Designation † | IR-728848 |
Weight | 4.817kg |
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-8811248 Needle Roller Bearing
The TIMKEN-Torrington HJ-8811248 is a robust needle roller bearing designed to handle high radial loads in applications where space is limited but durability and performance are paramount. As part of TIMKEN’s respected line of needle roller bearings, the HJ-8811248 is engineered to deliver reliable, high-capacity performance, making it ideal for heavy-duty industrial, automotive, and construction machinery applications.
Design and Construction
The HJ-8811248 is a full complement needle roller bearing, meaning it is built without a cage, allowing it to incorporate the maximum number of needle rollers. This design significantly boosts the bearing’s load capacity by maximizing the contact area between the rollers and raceways. The bearing measures approximately 6.5 inches (165.1 mm) in outer diameter, 9 inches (228.6 mm) in length, and 2.5 inches (63.5 mm) in wall thickness, offering a compact yet high-strength solution for heavy-load scenarios.。
The outer ring is crafted from high-quality, case-hardened steel, which provides excellent wear resistance, toughness, and the ability to withstand high stresses and impacts. The precision-engineered needle rollers are arranged densely to ensure even load distribution, reducing stress points and internal friction. This contributes to smoother operation, lower operating temperatures, and extended service life. The absence of an inner ring allows the bearing to be mounted directly on the shaft, saving space and simplifying installation.
Performance Features性能特点
The full complement of needle rollers in the HJ-8811248 allows it to handle substantial radial loads efficiently, making it suitable for applications that involve continuous or shock loading. Its design minimizes internal friction, resulting in better energy efficiency and lower operational temperatures, which are crucial for prolonging the bearing’s service life under demanding conditions.
Applications
The HJ-8811248 is commonly utilized in heavy-duty applications such as automotive transmissions, industrial gearboxes, construction equipment, and other machinery that requires high load capacity in confined spaces. It is particularly valuable in environments where space constraints and load requirements intersect, such as in conveyors, heavy-duty pumps, and earth-moving equipment.
Conclusion
The TIMKEN-Torrington HJ-8811248 needle roller bearing is a durable, high-capacity solution designed for heavy-duty applications requiring exceptional load support in compact spaces. Its full complement design and high-quality construction provide superior performance and reliability, making it a preferred choice in industrial and automotive environments. This bearing exemplifies TIMKEN’s commitment to delivering innovative and robust bearing solutions tailored to meet the rigorous demands of modern machinery and equipment.