TIMKEN -Torrington HJ-122012 Needle Roller bearing,Cylindrical Roller Radial Bearings-HJ Series 19,050 X 31,750 X 19,05 (mm)
Description
Fw Bore (nom.) inch | 0.7500 |
Fw Bore (nom.) mm | 19,050 |
D Outside Diameter (nom.) inch | 1.2500 |
D Outside Diameter (nom.) mm | 31,750 |
C/B Width (nom.) inch | 0.750 |
C/B Width (nom.) mm | 19,05 |
Limiting Speed rpm | 25 000 |
ra* Housing Fillet (max.) inch | 0.04 |
ra* Housing Fillet (max.) mm | 1,0 |
Used with Inner Ring Designation † | IR-081212 |
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 | ||
0.6250 | 15,875 | 1.1250 | 28,575 | 0.750 | 19,05 | HJ-101812 | 2 980 | 3 980 | 4 150 | 30 000 | 0.025 | 0,6 | IR-061012 | 15⁄16 | 23,8 |
0.7500
0.7500 |
19,050
19,050 |
1.2500
1.2500 |
31,750
31,750 |
0.750
1.000 |
19,05
25,40 |
HJ-122012
HJ-122016 |
3 180
4 350 |
4 250
5 830 |
4 680
7 020 |
25 000
25 000 |
0.04
0.04 |
1,0
1,0 |
IR-081212
IR-081216 |
1 1⁄16
1 1⁄16 |
27,0
27,0 |
0.8750
0.8750 |
22,225
22,225 |
1.3750
1.3750 |
34,925
34,925 |
0.750
1.000 |
19,05
25,40 |
HJ-142212
HJ-142216 |
3 540
4 850 |
4 750
6 500 |
5 600
8 400 |
21 000
21 000 |
0.04
0.04 |
1,0
1,0 |
IR-101412
IR-111412 IR-101416 |
1 3⁄16
1 3⁄16 |
30,2
30,2 |
1.0000
1.0000
|
25,400
25,400
|
1.5000
1.5000
|
38,100
38,100
|
0.750
1.000
|
19,05
25,40
|
HJ-162412
HJ-162416
|
3 870
5 310
|
5 200
7 120
|
6 520
9 780
|
18 000
18 000
|
0.04
0.04
|
1,0
1,0
|
IR-121612
IR-121616 IR-131616 |
1 5⁄16
1 5⁄16
|
33,3
33,3
|
1.1250
1.1250
|
28,575
28,575
|
1.6250
1.6250
|
41,275
41,275
|
1.000
1.250
|
25,40
31,75
|
HJ-182616
HJ-182620
|
5 740
7 190
|
7 700
9 650
|
11 200
14 900
|
16 000
16 000
|
0.04
0.04
|
1,0
1,0
|
IR-141816
IR-151816 IR-141820 IR-151820 |
1 7⁄16
1 7⁄16
|
36,5
36,5
|
1.2500
1.2500 |
31,750
31,750 |
1.7500
1.7500 |
44,450
44,450 |
1.000
1.250 |
25,40
31,75 |
HJ-202816
HJ-202820 |
5 900
7 400 |
7 920
9 930 |
11 900
16 000 |
14 000
14 000 |
0.04
0.04 |
1,0
1,0 |
IR-162016
IR-162020 |
1 9⁄16
1 9⁄16 |
39,7
39,7 |
1.3750
1.3750 |
34,925
34,925 |
1.8750
1.8750 |
47,625
47,625 |
1.000
1.250 |
25,40
31,75 |
HJ-223016
HJ-223020 |
6 290
7 880 |
8 430
10 600 |
13 300
17 800 |
13 000
13 000 |
0.04
0.04 |
1,0
1,0 |
IR-182216
IR-182220 |
1 11⁄16
1 11⁄16 |
42,9
42,9 |
1.5000
1.5000
|
38,100
38,100
|
2.0625
2.0625
|
52,388
52,388
|
1.000
1.250
|
25,40
31,75
|
HJ-243316
HJ-243320
|
7 400
9 320
|
9 930
12 500
|
14 800
20 000
|
12 000
12 000
|
0.06
0.06
|
1,5
1,5
|
IR-202416
IR-192420 IR-202420 |
1 7⁄8
1 7⁄8
|
47,6
47,6
|
1.6250
1.6250
|
41,275
41,275
|
2.1875
2.1875
|
55,562
55,562
|
1.000
1.250
|
25,40
31,75
|
HJ-263516
HJ-263520
|
7 600
9 570
|
10 200
12 800
|
15 700
21 100
|
11 000
11 000
|
0.06
0.06
|
1,5
1,5
|
IR-212616
IR-212620 IR-222620 |
2
2
|
50,8
50,8
|
1.7500
1.7500
|
44,450
44,450
|
2.3125
2.3125
|
58,738
58,738
|
1.000
1.250
|
25,40
31,75
|
HJ-283716
HJ-283720
|
7 790
9 810
|
10 500
13 200
|
16 600
22 300
|
9 900
9 900
|
0.06
0.06
|
1,5
1,5
|
IR-232816
IR-242816 IR-222820 IR-232820 IR-242820 |
2 1⁄8
2 1⁄8
|
54,0
54,0
|
1.8750 | 47,625 | 2.4375 | 61,912 | 1.250 | 31,75 | HJ-303920 | 10 400 | 13 900 | 24 500 | 9 200 | 0.06 | 1,5 | IR-253020 | 2 1⁄4 | 57,2 |
2.0000
2.0000
|
50,800
50,800
|
2.5625
2.5625
|
65,088
65,088
|
1.000
1.250
|
25,40
31,75
|
HJ-324116
HJ-324120
|
8 410
10 600
|
11 300
14 200
|
19 100
25 700
|
8 600
8 600
|
0.06
0.06
|
1,5
1,5
|
IR-273216
IR-243220 IR-253220 IR-263220 IR-273220 |
2 3⁄8
2 3⁄8
|
60,3
60,3
|
2.2500
2.2500 |
57,150
57,150 |
3.0000
3.0000 |
76,200
76,200 |
1.500
1.750 |
38,10
44,45 |
HJ-364824
HJ-364828 |
14 800
17 200 |
19 900
23 100 |
36 200
43 700 |
7 600
7 600 |
0.06
0.06 |
1,5
1,5 |
IR-283624
IR-283628 |
2 11⁄16
2 11⁄16 |
68,3
68,3 |
2.5000
2.5000
|
63,500
63,500
|
3.2500
3.2500
|
82,550
82,550
|
1.500
1.750
|
38,10
44,45
|
HJ-405224
HJ-405228
|
16 000
18 600
|
21 500
24 900
|
41 300
49 900
|
6 800
6 800
|
0.08
0.08
|
2,0
2,0
|
IR-314024
IR-324024 IR-314028 IR-324028 |
2 15⁄16
2 15⁄16
|
74,6
74,6
|
2.7500
2.7500 2.7500
|
69,850
69,850 69,850
|
3.5000
3.5000 3.5000
|
88,900
88,900 88,900
|
1.000
1.500 1.750
|
25,40
38,10 44,45
|
HJ-445616
HJ-445624 HJ-445628
|
10 900
16 700 19 300
|
14 700
22 300 25 900
|
26 100
44 800 54 100
|
6 200
6 200 6 200
|
0.08
0.08 0.08
|
2,0
2,0 2,0
|
—
IR-364424 IR-354428 IR-364428 |
3 3⁄16
3 3⁄16 3 3⁄16
|
81,0
81,0 81,0
|
3.0000
3.0000
|
76,200
76,200
|
3.7500
3.7500
|
95,250
95,250
|
1.500
1.750
|
38,10
44,45
|
HJ-486024
HJ-486028
|
17 700
20 500
|
23 800
27 500
|
49 900
60 300
|
5 600
5 600
|
0.08
0.08
|
2,0
2,0
|
IR-404824
IR-384828 IR-404828 |
3 7⁄16
3 7⁄16
|
87,3
87,3
|
3.2500
3.2500 |
82,550
82,550 |
4.2500
4.2500 |
107,950
107,950 |
1.750
2.000 |
44,45
50,80 |
HJ-526828
HJ-526832 |
26 800
30 400 |
36 000
40 800 |
67 400
79 300 |
5 300
5 300 |
0.08
0.08 |
2,0
2,0 |
IR-445228
IR-445232 |
3 7⁄8
3 7⁄8 |
98,4
98,4 |
3.5000
|
88,900
|
4.5000
|
114,300
|
2.000
|
50,80
|
HJ-567232
|
31 000
|
41 500
|
83 000
|
4 900
|
0.08
|
2,0
|
IR-475632 IR-485632 | 4 1⁄8
|
104,8 |
BEARING MOUNTING DIMENSIONS | ||||||||||||||||
Mounting Dimensions, Clearance Fit | 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 |
Bearing Designation | 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 | |
0.6250 | 0.6246 | 1.1250 | 1.1258 | 15,875 | 15,865 | 28,575 | 28,595 | HJ-101812 | 0.6244 | 0.6240 | 1.1239 | 1.1247 | 15,860 | 15,850 | 28,547 | 28,567 |
0.7500
0.7500 |
0.7495
0.7495 |
1.2500
1.2500 |
1.2510
1.2510 |
19,050
19,050 |
19,037
19,037 |
31,750
31,750 |
31,775
31,775 |
HJ-122012
HJ-122016 |
0.7492
0.7492 |
0.7487
0.7487 |
1.2487
1.2487 |
1.2497
1.2497 |
19,030
19,030 |
19,017
19,017 |
31,717
31,717 |
31,742
31,742 |
0.8750
0.8750 |
0.8745
0.8745 |
1.3750
1.3750 |
1.3760
1.3760 |
22,225
22,225 |
22,212
22,212 |
34,925
34,925 |
34,950
34,950 |
HJ-142212
HJ-142216 |
0.8742
0.8742 |
0.8737
0.8737 |
1.3737
1.3737 |
1.3747
1.3747 |
22,205
22,205 |
22,192
22,192 |
34,892
34,892 |
34,917
34,917 |
1.0000
1.0000 |
0.9995
0.9995 |
1.5000
1.5000 |
1.5010
1.5010 |
25,400
25,400 |
25,387
25,387 |
38,100
38,100 |
38,125
38,125 |
HJ-162412
HJ-162416 |
0.9992
0.9992 |
0.9987
0.9987 |
1.4987
1.4987 |
1.4997
1.4997 |
25,380
25,380 |
25,367
25,367 |
38,067
38,067 |
38,092
38,092 |
1.1250
1.1250 |
1.1245
1.1245 |
1.6250
1.6250 |
1.6260
1.6260 |
28,575
28,575 |
28,562
28,562 |
41,275
41,275 |
41,300
41,300 |
HJ-182616
HJ-182620 |
1.1242
1.1242 |
1.1237
1.1237 |
1.6237
1.6237 |
1.6247
1.6247 |
28,555
28,555 |
28,542
28,542 |
41,242
41,242 |
41,267
41,267 |
1.2500
1.2500 |
1.2494
1.2494 |
1.7500
1.7500 |
1.7510
1.7510 |
31,750
31,750 |
31,735
31,735 |
44,450
44,450 |
44,475
44,475 |
HJ-202816
HJ-202820 |
1.2490
1.2490 |
1.2484
1.2484 |
1.7487
1.7487 |
1.7497
1.7497 |
31,725
31,725 |
31,710
31,710 |
44,417
44,417 |
44,442
44,442 |
1.3750
1.3750 |
1.3744
1.3744 |
1.8750
1.8750 |
1.8760
1.8760 |
34,925
34,925 |
34,910
34,910 |
47,625
47,625 |
47,650
47,650 |
HJ-223016
HJ-223020 |
1.3740
1.3740 |
1.3734
1.3734 |
1.8737
1.8737 |
1.8747
1.8747 |
34,900
34,900 |
34,885
34,885 |
47,592
47,592 |
47,617
47,617 |
1.5000
1.5000 |
1.4994
1.4994 |
2.0625
2.0625 |
2.0637
2.0637 |
38,100
38,100 |
38,085
38,085 |
52,388
52,388 |
52,418
52,418 |
HJ-243316
HJ-243320 |
1.4990
1.4990 |
1.4984
1.4984 |
2.0610
2.0610 |
2.0622
2.0622 |
38,075
38,075 |
38,060
38,060 |
52,349
52,349 |
52,379
52,379 |
1.6250
1.6250 |
1.6244
1.6244 |
2.1875
2.1875 |
2.1887
2.1887 |
41,275
41,275 |
41,260
41,260 |
55,562
55,562 |
55,592
55,592 |
HJ-263516
HJ-263520 |
1.6240
1.6240 |
1.6234
1.6234 |
2.1860
2.1860 |
2.1872
2.1872 |
41,250
41,250 |
41,235
41,235 |
55,524
55,524 |
55,554
55,554 |
1.7500
1.7500 |
1.7494
1.7494 |
2.3125
2.3125 |
2.3137
2.3137 |
44,450
44,450 |
44,435
44,435 |
58,738
58,738 |
58,768
58,768 |
HJ-283716
HJ-283720 |
1.7490
1.7490 |
1.7484
1.7484 |
2.3110
2.3110 |
2.3122
2.3122 |
44,425
44,425 |
44,410
44,410 |
58,699
58,699 |
58,729
58,729 |
1.8750 | 1.8744 | 2.4375 | 2.4387 | 47,625 | 47,610 | 61,912 | 61,942 | HJ-303920 | 1.8740 | 1.8734 | 2.4360 | 2.4372 | 47,600 | 47,585 | 61,874 | 61,904 |
2.0000
2.0000 |
1.9993
1.9993 |
2.5625
2.5625 |
2.5637
2.5637 |
50,800
50,800 |
50,782
50,782 |
65,088
65,088 |
65,118
65,118 |
HJ-324116
HJ-324120 |
1.9988
1.9988 |
1.9981
1.9981 |
2.5610
2.5610 |
2.5622
2.5622 |
50,770
50,770 |
50,752
50,752 |
65,049
65,049 |
65,079
65,079 |
2.2500
2.2500 |
2.2493
2.2493 |
3.0000
3.0000 |
3.0012
3.0012 |
57,150
57,150 |
57,132
57,132 |
76,200
76,200 |
76,230
76,230 |
HJ-364824
HJ-364828 |
2.2488
2.2488 |
2.2481
2.2481 |
2.9985
2.9985 |
2.9997
2.9997 |
57,120
57,120 |
57,102
57,102 |
76,162
76,162 |
76,192
76,192 |
2.5000
2.5000 |
2.4993
2.4993 |
3.2500
3.2500 |
3.2514
3.2514 |
63,500
63,500 |
63,482
63,482 |
82,550
82,550 |
82,586
82,586 |
HJ-405224
HJ-405228 |
2.4988
2.4988 |
2.4981
2.4981 |
3.2481
3.2481 |
3.2495
3.2495 |
63,470
63,470 |
63,452
63,452 |
82,502
82,502 |
82,538
82,538 |
2.7500
2.7500 2.7500 |
2.7493
2.7493 2.7493 |
3.5000
3.5000 3.5000 |
3.5014
3.5014 3.5014 |
69,850
69,850 69,850 |
69,832
69,832 69,832 |
88,900
88,900 88,900 |
88,936
88,936 88,936 |
HJ-445616
HJ-445624 HJ-445628 |
2.7488
2.7488 2.7488 |
2.7481
2.7481 2.7481 |
3.4981
3.4981 3.4981 |
3.4995
3.4995 3.4995 |
69,820
69,820 69,820 |
69,802
69,802 69,802 |
88,852
88,852 88,852 |
88,888
88,888 88,888 |
3.0000 3.0000 | 2.9993
2.9993 |
3.7500
3.7500 |
3.7514
3.7514 |
76,200
76,200 |
76,182
76,182 |
95,250
95,250 |
95,286
95,286 |
HJ-486024 HJ-486028 | 2.9988 2.9988 | 2.9981 2.9981 | 3.7481 3.7481 | 3.7495 3.7495 | 76,170
76,170 |
76,152
76,152 |
95,202
95,202 |
95,238
95,238 |
3.2500
3.2500 |
3.2491
3.2491 |
4.2500
4.2500 |
4.2514
4.2514 |
82,550
82,550 |
82,527
82,527 |
107,950
107,950 |
107,986
107,986 |
HJ-526828
HJ-526832 |
3.2486
3.2486 |
3.2477
3.2477 |
4.2481
4.2481 |
4.2495
4.2495 |
82,514
82,514 |
82,491
82,491 |
107,902
107,902 |
107,938
107,938 |
3.5000 | 3.4991 | 4.5000 | 4.5014 | 88,900 | 88,877 | 114,300 | 114,336 | HJ-567232 | 3.4986 | 3.4977 | 4.4981 | 4.4995 | 88,864 | 88,841 | 114,252 | 114,288 |
Introduction to TIMKEN HJ-122012 Bearing
The TIMKEN HJ-122012 is a highly efficient needle roller bearing designed to meet the demands of high-load, high-speed applications in a variety of industries. Known for their compact size, needle roller bearings like the HJ-122012 offer a greater load-carrying capacity compared to other types of bearings of the same size, making them ideal for applications where space and weight constraints are crucial considerations.
Design and Features
The TIMKEN HJ-122012 is a drawn cup needle roller bearing, which features a full complement of needle rollers that are contained within a thin-walled, stamped outer ring. This design allows for a compact and lightweight structure while still providing exceptional load-carrying capacity. The bearing is typically employed in applications where the housing bore cannot serve as a raceway for the needle rollers, allowing for reduced overall dimensions and weight.
The bearing measures 3/4 inch in length, with an outside diameter of 1 1/4 inch and a bore size of 3/4 inch. This compact design makes it suitable for a wide range of applications, from automotive components like transmissions and gearboxes to industrial machinery such as construction equipment and conveyor systems.
Performance and Durability
One of the key advantages of the TIMKEN HJ-122012 is its ability to handle high radial loads while maintaining a high level of performance and reliability. The full complement of needle rollers distributes the load evenly across the bearing, reducing stress and extending the service life of the bearing. The needle rollers are precisely manufactured to ensure minimal friction and optimal performance, even under challenging operating conditions.TIMKEN HJ-122012
The drawn cup design of the bearing helps in minimizing friction and heat generation, contributing to its high-speed performance. Additionally, the bearing’s design includes high-quality materials and precision manufacturing processes, which ensure durability and long service life even in harsh environments. This durability is a hallmark of TIMKEN’s commitment to providing robust and reliable bearing solutions.