PYC Bearing
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Radial Needle Roller and Cage Assemblies
Inner Ring
Drawn Cup Needle Roller Bearings
Heavy Duty Needle Roller Bearings
Long Cylindrical Roller and Cage Assemblies
Thrust Needle Roller and Cage Assemblies thrust washers
Radial Needle Roller and Cage Assemblies

Bearing Designation
Boundary Dimensions 
 　
Bearing Designation 
Boundary Dimensions 
Current
Original Code
Fw
Ew
Bc
Current
Original Code
Fw
Ew
Bc
mm
mm
K14×18×17
59241/14
14
18
17
K38×46×30
39244/38
38
46
30
K15×20×20
59242/15
15
20
20
K38.4×44.4×44
SZ-450
38.4
44.4
44
K16×23×14
K9241/10
16
23
14
K40×44×26 ZWK
　
40
44
26
K17.5×22×16
　
17.5
22
16
K40×44×30 ZWDK
　
40
44
30
K17.5×22×17
59241/17.5
17.5
22
17
K40×45×17
9242/40
40
45
17
K18×28×16
　
18
28
16
K40×45×27
9243/40
40
45
27
K20×26×28
　
20
26
28
K40×45×30
　
40
45
30
K20×30×20
K9249/20
20
30
20
K40×46×17
39242/40
40
46
17
K20×30×23
K9249/20
20
30
23
K41×48×30 ZW
　
41
48
30
K22×28×23
　
22
28
23
K42×48×35
79242/42
42
48
35
K23×35×15.2
　
23
35
15.2
K43×49×31
SZ-418
43
49
31
K24×30×17
　
24
30
17
K43×50×18
9249/43
43
50
18
K25×29×13
9242/25
25
29
13
K43×50×30.5 ZW
　
44
50
30.5
K25×29×17
9243/25
25
29
17
K48×49×30.7 ZW
　
45
49
30.7
K25×30×20
59242/25
25
30
20
K45×50×17
9242/45
45
50
17
K25×30×24
　
25
30
24
K45×50×27
9243/45
45
50
27
K25×30×25
69242/25
25
30
25
K45×50×29
　
45
50
29
K25×30×26
SZ-436
25
30
26
K45×50×31
　
45
50
31
K25×30×33ZWD
　
25
30
33
K45×50×31 ZW
　
45
50
31
K25×32×25
39243/25
25
32
25
K46×52×37
SE417
46
52
37
K25×33×24
9249/25
25
33
24
K48×54×25
59242/48
48
54
25
K27×32×23
　
27
32
23
K48×54×29
9247/48
48
54
29
K27×32×27
K9247/27
27
32
27
KS48×54×40 ZW
62649/48
48
54
40
K27×40×30
49245/27
27
40
30
K49×55×32 ZW
　
49
55
32
K27×40×43
　
27
40
43
K50×55×30
9243/50
50
55
30
K27×47×43
49245/27
27
47
43
K50×55×40
　
50
55
40
K28×33×17
9242/28
28
33
17
K51.5×59.5×35
　
51.5
59.5
35
K30×35×20
59241/30
30
35
20
K52×58×32 ZW
　
52
58
32
K30×35×27
9243/30
30
35
27
K54×62×21
9249/54
54
62
21
K30×38×25
29244/30
30
38
25
K55×60×30
9243/55
55
60
30
K30×40×27
9249/30
30
40
27
K55×61×20
49241/55
55
31
20
K30×42×32
9248/30
30
42
32
K55×62×40 ZWD
9348/55K
55
62
40
K30×42×44.1
64706K1
30
42
44.1
K56×61×30
　
56
61
30
K30×46×28
　
30
46
28
K56×61×34
9249/56
56
61
34
K32×37×20
59241/32
32
37
20
K60×65×30
　
60
65
30
K32×37×25
　
32
37
25
K60×66×21.2
DC6J70 T-450
60
66
21.2
K32×37×28
　
32
37
28
K60×66×23.3
　
60
66
23.3
K32×37×36 ZW
　
32
37
36
K60×66×30
9249/60
60
66
30
K35×40×27
9243/35
35
40
27
K62×70×20
　
62
70
20
K35×40×31
9243/35
35
40
31
K63×71×25
9246/63
63
71
25
K36×40×28.8 ZW
　
36
40
28.8
K65×70×20
49249/65
65
70
20
K36×40×31 ZW
　
36
40
31
K70×76×30
69241/70
70
76
30
K37×42×30 ZW
　
37
42
30
K75×81×20
49241/75
75
81
20
K37×42×31
　
37
42
31
K78×85×19.7
DC6J70 T-445
78
85
19.7
K38×43×36 ZW
　
38
43
36
K78×85×23.3
　
78
85
23.3
K38×44×25
59242/35
38
44
25
K80×88×25
9246/80
80
88
25
K38×44×28
　
38
44
28
K85×92×17.2
DC6170 T-440
85
92
17.2
K38×46×20
19244/38
38
46
20
K85×92×18.8
　
85
92
18.8

Inner Ring

Inner Ring 
Boundary Dimensions 
Current
Original Code
d
F
Bc
mm
IR20×27×28
　
20
27
28
IR22×27×30
　
22
27
30
IR35×40×20
71351-B1
35
40
20
IR37×45×28
1701316-B1
37
45
28
IR40×50×31
　
40
50
31
IR50×60×43
DC6J70 T-138
50
60
43
IR70×78×40
DC6J70 T-119
70
78
40
IR71×78×40
DC6J70 T-118
71
78
40

Drawn Cup Needle Roller Bearings

Bearing Designation 
Boundary Dimensions
Current
Original Code
Fw
D
C
mm
With Cage
HK10×15×15
　
10
15
15
HK16×22×17
SE435
16
22
17
HK1715RS
HK172315
17
23
15
HK2016
57941/20
20
26
16
HK2020
77941/20
20
26
20
HK2516
7941/25
25
32
16
HK2520
67941/25
25
32
20
HK25×34×20
57948/25
25
34
20
HK4020
　
40
48
20
HK55×61×12
77949/55
55
61
12
Full Components
F12×17×12
942/12
12
17
12
F15×20×12
942/15
15
20
12
F-1714
941/17
17
23
14
F20×26×15
943/20
20
26
15
F22×28×12
949/22
22
28
12
F-2516
40941/25
25
32
16
F-2520
60941/25
25
32
20
F-2525
943/25
25
32
25
F30×38×25
947/30K
30
38
25
F30×40×28
948/30K
30
40
28
F32×40×32
943/32
32
40
32
F40×50×38
943/40
40
50
38
FH45×55×38
943/45
45
55
38
F50×60×38
943/50
50
60
38
MF12×16×7
　
12
16
7
MF-1212
6941/12.
12
17
12

Heavy Duty Needle Roller Bearings

Bearing Designation
Boundary Dimensions
Current
Original Code
Fw
D
C
mm
Without IR
NK30×50×17
　
30
50
17
NK30×51×17
　
30
51
17
RNA4904
4644904
25
37
17
RNA4906
4644906
35
47
17
RNA4910
4644910
58
72
22
RNAV4004
4084104
28.7
42
22
RNAV4007
4084107
45.9
62
27
RNAV4908
4084908K
48
62
22
With IR
NK138/20
　
38
53
20
NA4906
4544904
30
47
14
NA4917
4544917
85
120
35
NAV4006
4074106
30
55
25
NAV4910
4074910
50
72
22

Long Cylindrical Roller and Cage Assemblies

Bearing Designation
Boundary Dimensions
Current
Original Code
Fw
Ew
B
mm
64903
　
19.051
28.588
36.75
64904
　
19.051
28.588
43.25
64904K
864904
20.612
33.325
35
KNL20×30.02×18
64704
20
30.02
18
KNL25×38×24.7
64705
25
38
24.7
64905