MPNbase

50 mm bore bearings

377 models with a 50 mm (1.969 in) bore across 15 bearing types, outside diameters from 55 to 130 mm. Tables are grouped by type; open a model for full specs and equivalents.

377 models 55–130 mm OD range 5 brands

Adapter Sleeves (3)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
H-210 H2 50 70 35 SKF — — —
H-310 H3 50 70 42 SKF — — —
H-310-E H3 50 70 42 SKF — — —

Angular Contact Ball Bearings (42)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
71810 71800 50 65 7 GENERIC-ISO open CN —
71910 71900 50 72 12 GENERIC-ISO open CN —
7910 7900 50 72 12 NTN open CN 18.4
7010 7000 50 80 16 GENERIC-ISO open CN —
7010-NTN 7000 50 80 16 NTN open CN 26.2
7210 7200 50 90 20 SKF open CN 37.7
7210-ACCBM 7200 50 90 20 SKF open CN 45.5
7210-BE-2RZP 7200 50 90 20 SKF RSR CN 37.7
7210-BECBM 7200 50 90 20 SKF open CN 40
7210-BECBP 7200 50 90 20 SKF open CN 40
7210-BECBPH 7200 50 90 20 SKF open CN 40
7210-BECBY 7200 50 90 20 SKF open CN 41.5
7210-BEP 7200 50 90 20 SKF open CN 37.7
7210-NTN 7200 50 90 20 NTN open CN 45.5
7210B 7200 50 90 20 NTN open CN 41.5
QJ-210-MA QJ200 50 90 20 SKF open CN 65.5
QJ210 QJ200 50 90 20 NTN open CN 57.5
3210-A 3200 50 90 30.2 SKF open CN 51
3210-A-2RS1 3200 50 90 30.2 SKF 2RS CN 51
3210-A-2Z 3200 50 90 30.2 SKF ZZ CN 51
3210-ATN9 3200 50 90 30.2 SKF open CN 51
5210S 5200S 50 90 30.2 NTN open CN 53
7310 7300 50 110 27 SKF open CN 75
7310-ACCBM 7300 50 110 27 SKF open CN 83
7310-BE-2RZP 7300 50 110 27 SKF RSR CN 68.9
7310-BECBM 7300 50 110 27 SKF open CN 75
7310-BECBP 7300 50 110 27 SKF open CN 75
7310-BECBY 7300 50 110 27 SKF open CN 78
7310-BEGAPH 7300 50 110 27 SKF open CN 75
7310-NTN 7300 50 110 27 NTN open CN 82.5
7310B 7300 50 110 27 NTN open CN 75.5
QJ-310-MA QJ300 50 110 27 SKF open CN 118
QJ-310-PHAS QJ300 50 110 27 SKF open CN 118
QJ310 QJ300 50 110 27 NTN open CN 102
3310-A 3300 50 110 44.4 SKF open CN 90
3310-A-2RS1 3300 50 110 44.4 SKF 2RS CN 90
3310-A-2Z 3300 50 110 44.4 SKF ZZ CN 90
3310-ATN9 3300 50 110 44.4 SKF open CN 90
3310-DMA 3300 50 110 44.4 SKF open CN 93.6
3310-DNRCBM 3300 50 110 44.4 SKF open CN 81.9
5310S 5300S 50 110 44.4 NTN open CN 81.5
7410 7400 50 130 31 GENERIC-ISO open CN —

CARB Toroidal Roller Bearings (9)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
C4910-V C4900 50 72 22 SKF open CN 86.5
C6910-V C6900 50 72 40 SKF open CN 140
C4010-TN9 C4000 50 80 30 SKF open CN 116
C4010-V C4000 50 80 30 SKF open CN 137
C2210-KTN9 C2200 50 90 23 SKF open CN 98
C2210-TN9 C2200 50 90 23 SKF open CN 98
C2210-V C2200 50 90 23 SKF open CN 114
C2211-KTN9-AHX311 carb-withdrawal-sleeve 50 100 25 SKF open CN 116
C2211-KTN9-H311-E carb-adapter-sleeve 50 100 25 SKF open CN 116

Cylindrical Roller Bearings (73)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
N1010 N1000 50 80 16 NTN open CN 35.5
NJ1010 NJ1000 50 80 16 NTN open CN 35.5
NU1010 NU1000 50 80 16 NTN open CN 35.5
NU1010-ECP NU1000 50 80 16 SKF open CN 46.8
NUP1010 NUP1000 50 80 16 NTN open CN 35.5
NCF3010-CV NCF3000 50 80 23 SKF open CN 76.5
NN3010 NN3000 50 80 23 NTN open CN 59
NN3010K NN3000 50 80 23 NTN open CN 59
SL183010-XL sl1830 50 80 23 FAG open CN 88
NNCF5010-CV NNCF5000 50 80 40 SKF open CN 142
NNF5010-ADB-2LSV NNF5000 50 80 40 SKF 2RS CN 108
SL185010-XL sl1850 50 80 40 FAG open CN 151
N210 N200 50 90 20 NTN open CN 53.5
N210-ECP N200 50 90 20 SKF open CN 73.5
N210EA N200 50 90 20 NTN open CN 81.5
NF210 NF200 50 90 20 NTN open CN 53.5
NF210EA NF200 50 90 20 NTN open CN 81.5
NJ210 NJ200 50 90 20 NTN open CN 53.5
NJ210-ECP NJ200 50 90 20 SKF open CN 73.5
NJ210EA NJ200 50 90 20 NTN open CN 81.5
NU210 NU200 50 90 20 SKF open CN 73.5
NU210-NTN NU200 50 90 20 NTN open CN 53.5
NU210EA NU200 50 90 20 NTN open CN 81.5
NUP210 NUP200 50 90 20 NTN open CN 53.5
NUP210-ECP NUP200 50 90 20 SKF open CN 73.5
NUP210EA NUP200 50 90 20 NTN open CN 81.5
N2210 N2200 50 90 23 NTN open CN 71
N2210EA N2200 50 90 23 NTN open CN 98.5
NF2210EA NF2200 50 90 23 NTN open CN 98.5
NJ2210 NJ2200 50 90 23 NTN open CN 71
NJ2210-ECP NJ2200 50 90 23 SKF open CN 90
NJ2210EA NJ2200 50 90 23 NTN open CN 98.5
NU2210 NU2200 50 90 23 SKF open CN 90
NU2210-NTN NU2200 50 90 23 NTN open CN 71
NU2210EA NU2200 50 90 23 NTN open CN 98.5
NUP2210 NUP2200 50 90 23 NTN open CN 71
NUP2210-ECP NUP2200 50 90 23 SKF open CN 90
NUP2210EA NUP2200 50 90 23 NTN open CN 98.5
SL182210-XL sl1822 50 90 23 FAG open CN 109
N310 N300 50 110 27 NTN open CN 96.5
N310-ECP N300 50 110 27 SKF open CN 127
N310EA N300 50 110 27 NTN open CN 130
NF310 NF300 50 110 27 NTN open CN 96.5
NF310EA NF300 50 110 27 NTN open CN 130
NJ310 NJ300 50 110 27 NTN open CN 96.5
NJ310-ECP NJ300 50 110 27 SKF open CN 127
NJ310EA NJ300 50 110 27 NTN open CN 130
NU310 NU300 50 110 27 SKF open CN 127
NU310-NTN NU300 50 110 27 NTN open CN 96.5
NU310EA NU300 50 110 27 NTN open CN 130
NUP310 NUP300 50 110 27 NTN open CN 96.5
NUP310-ECP NUP300 50 110 27 SKF open CN 127
NUP310EA NUP300 50 110 27 NTN open CN 130
N2310 N2300 50 110 40 NTN open CN 134
N2310EA N2300 50 110 40 NTN open CN 192
NF2310EA NF2300 50 110 40 NTN open CN 192
NJ2310 NJ2300 50 110 40 NTN open CN 134
NJ2310-ECP NJ2300 50 110 40 SKF open CN 186
NJ2310EA NJ2300 50 110 40 NTN open CN 192
NU2310 NU2300 50 110 40 SKF open CN 186
NU2310-NTN NU2300 50 110 40 NTN open CN 134
NU2310EA NU2300 50 110 40 NTN open CN 192
NUP2310 NUP2300 50 110 40 NTN open CN 134
NUP2310-ECP NUP2300 50 110 40 SKF open CN 186
NUP2310EA NUP2300 50 110 40 NTN open CN 192
SL192310-XL sl1923 50 110 40 FAG open CN 232
N410 N400 50 130 31 NTN open CN 143
NF410 NF400 50 130 31 NTN open CN 143
NJ410 NJ400 50 130 31 SKF open CN 130
NJ410-NTN NJ400 50 130 31 NTN open CN 143
NU410 NU400 50 130 31 SKF open CN 130
NU410-NTN NU400 50 130 31 NTN open CN 143
NUP410 NUP400 50 130 31 NTN open CN 143

Cylindrical Roller Thrust Bearings (2)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
81110-TN 81100 50 70 14 SKF open CN 47.5
81210-TN 81200 50 78 22 SKF open CN 91.5

Deep Groove Ball Bearings (77)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
61810 61800 50 65 7 SKF open CN 6.76
61810-2RS 61800 50 65 7 SKF 2RS CN 6.76
61810-2RS-NSK 61800 50 65 7 NSK 2RS CN 7.05
61810-2RS-NTN 61800 50 65 7 NTN 2RS CN 7.3
61810-NSK 61800 50 65 7 NSK open CN 7.05
61810-NTN 61800 50 65 7 NTN open CN 7.3
61810-RSR 61800 50 65 7 SKF RSR CN 6.76
61810-RSR-NSK 61800 50 65 7 NSK RSR CN 7.05
61810-RSR-NTN 61800 50 65 7 NTN RSR CN 7.3
61810-ZZ 61800 50 65 7 NSK ZZ CN 7.05
61810-ZZ-NTN 61800 50 65 7 NTN ZZ CN 7.3
W61810-2RS 61800 50 65 7 SKF 2RS CN 5.07
61910 61900 50 72 12 SKF open CN 14.6
61910-2RS 61900 50 72 12 SKF 2RS CN 14.6
61910-2RS-NSK 61900 50 72 12 NSK 2RS CN 16
61910-2RS-NTN 61900 50 72 12 NTN 2RS CN 14.9
61910-NSK 61900 50 72 12 NSK open CN 16
61910-NTN 61900 50 72 12 NTN open CN 14.9
61910-RSR 61900 50 72 12 SKF RSR CN 14.6
61910-RSR-NSK 61900 50 72 12 NSK RSR CN 16
61910-RSR-NTN 61900 50 72 12 NTN RSR CN 14.9
61910-ZZ 61900 50 72 12 NSK ZZ CN 16
61910-ZZ-NTN 61900 50 72 12 NTN ZZ CN 14.9
16010 16000 50 80 10 NTN open CN 14.7
6010 6000 50 80 16 SKF open CN 22.9
6010-2RS 6000 50 80 16 SKF 2RS CN 22.9
6010-2RS-NSK 6000 50 80 16 NSK 2RS CN 24
6010-2RS-NTN 6000 50 80 16 NTN 2RS CN 24.2
6010-NSK 6000 50 80 16 NSK open CN 24
6010-NTN 6000 50 80 16 NTN open CN 24.2
6010-RSR 6000 50 80 16 SKF RSR CN 22.9
6010-RSR-NSK 6000 50 80 16 NSK RSR CN 24
6010-RSR-NTN 6000 50 80 16 NTN RSR CN 24.2
6010-ZZ 6000 50 80 16 SKF ZZ CN 22.9
6010-ZZ-NSK 6000 50 80 16 NSK ZZ CN 24
6010-ZZ-NTN 6000 50 80 16 NTN ZZ CN 24.2
W6010-2RS 6000 50 80 16 SKF 2RS CN 19
W6010-ZZ 6000 50 80 16 SKF ZZ CN 19
63010-2RS 63000 50 80 23 SKF 2RS CN 21.6
210 200 50 90 20 SKF open CN 39.1
210-ZZ 200 50 90 20 SKF ZZ CN 39.1
6210 6200 50 90 20 SKF open CN 37.1
6210-2RS 6200 50 90 20 SKF 2RS CN 37.1
6210-2RS-NSK 6200 50 90 20 NSK 2RS CN 38.5
6210-2RS-NTN 6200 50 90 20 NTN 2RS CN 39
6210-M 6200 50 90 20 SKF open CN 37.1
6210-NSK 6200 50 90 20 NSK open CN 38.5
6210-NTN 6200 50 90 20 NTN open CN 39
6210-RSR 6200 50 90 20 NSK RSR CN 38.5
6210-RSR-NTN 6200 50 90 20 NTN RSR CN 39
6210-ZZ 6200 50 90 20 SKF ZZ CN 37.1
6210-ZZ-NSK 6200 50 90 20 NSK ZZ CN 38.5
6210-ZZ-NTN 6200 50 90 20 NTN ZZ CN 39
W6210-2RS 6200 50 90 20 SKF 2RS CN 30.2
W6210-ZZ 6200 50 90 20 SKF ZZ CN 30.2
4210-ATN9 4200 50 90 23 SKF open CN 41
62210-2RS 62200 50 90 23 SKF 2RS CN 35.1
310 300 50 110 27 SKF open CN 64.4
310-ZZ 300 50 110 27 SKF ZZ CN 64.4
6310 6300 50 110 27 SKF open CN 65
6310-2RS 6300 50 110 27 SKF 2RS CN 65
6310-2RS-NSK 6300 50 110 27 NSK 2RS CN 68
6310-2RS-NTN 6300 50 110 27 NTN 2RS CN 68.5
6310-M 6300 50 110 27 SKF open CN 65
6310-NSK 6300 50 110 27 NSK open CN 68
6310-NTN 6300 50 110 27 NTN open CN 68.5
6310-RSR 6300 50 110 27 NSK RSR CN 68
6310-RSR-NTN 6300 50 110 27 NTN RSR CN 68.5
6310-ZZ 6300 50 110 27 SKF ZZ CN 65
6310-ZZ-NSK 6300 50 110 27 NSK ZZ CN 68
6310-ZZ-NTN 6300 50 110 27 NTN ZZ CN 68.5
4310-ATN9 4300 50 110 40 SKF open CN 81.9
62310-2RS 62300 50 110 40 SKF 2RS CN 61.8
6410 6400 50 130 31 SKF open CN 87.1
6410-2RS 6400 50 130 31 GENERIC-ISO 2RS CN 87.1
6410-NTN 6400 50 130 31 NTN open CN 92
6410-ZZ 6400 50 130 31 NTN ZZ CN 92

Insert Bearings (Y-bearings) (16)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
1726210-2RS1 17262 50 90 20 SKF 2RS CN 35.1
YET-210 YEL2 50 90 30.2 SKF open CN 35.1
YAT-210 YAR2 50 90 38.8 SKF open CN 35.1
YSP-210-SB-2F YSP2 50 90 46.2 SKF 2RS CN 35.1
YSPAG-210 YSP2 50 90 46.2 SKF 2RS CN 35.1
YEL-210-2F YEL2 50 90 49.2 SKF 2RS CN 35.1
YELAG-210 YEL2 50 90 49.2 SKF 2RS CN 35.1
YAR-210-2F YAR2 50 90 51.6 SKF 2RS CN 35.1
YAR-210-2RF YAR2 50 90 51.6 SKF 2RS CN 35.1
YAR-210-2RF-HV YAR2 50 90 51.6 SKF 2RS CN 29.6
YAR-210-2RF-VE495 YAR2 50 90 51.6 SKF 2RS CN 35.1
YAR-210-2RFGR-HV YAR2 50 90 51.6 SKF 2RS CN 29.6
YARAG-210 YAR2 50 90 51.6 SKF 2RS CN 35.1
YSA-211-2FK-H-2311 YSA2 50 100 40 SKF 2RS CN 43.6
1726310-2RS1 17263 50 110 27 SKF 2RS CN 61.8
1726310-B-2RS1-VP274 17263 50 110 27 SKF 2RS CN 61.8

Needle Roller Bearings (34)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
K50X55X20 K 50 55 20 SKF open CN 25.5
K50X55X30 K 50 55 30 SKF open CN 37.4
K50X57X18 K 50 57 18 SKF open CN 31.9
HK5020 HK 50 58 20 NTN open — 31.5
HK5024-2RS HK 50 58 24 SKF 2RS CN 29.2
HK5025 HK 50 58 25 NTN open — 38.5
K50X58X25 K 50 58 25 SKF open CN 41.8
RNAO50X62X20-XL rnao 50 62 20 FAG open CN 30
NK50-25-TN NK 50 62 25 SKF open CN 42.9
NK50-25-TV-XL nk 50 62 25 FAG open CN 48.5
NK50-35-TN NK 50 62 35 SKF open CN 58.3
NK50-35-TV-XL nk 50 62 35 FAG open CN 67
NKX50 NKX 50 62 35 SKF open CN 38
NKX50-Z NKX 50 62 35 SKF open CN 38
NKXR50 NKXR 50 62 35 SKF open CN 38
NKXR50-Z NKXR 50 62 35 SKF open CN 38
RNAO50X65X20-XL rnao 50 65 20 FAG open CN 40.5
NKS50 NKS 50 65 22 SKF open CN 42.9
NKS50-XL nks 50 65 22 FAG open CN 48
RNAO50X65X40-ZW-ASR1-XL rnao 50 65 40 FAG open CN 69
NAO50X68X20-IS1-XL nao 50 68 20 FAG open CN 32
NKI50-25 NKI 50 68 25 SKF open CN 40.2
NKI50-25-XL nki 50 68 25 FAG open CN 45.5
NKI50-35 NKI 50 68 35 SKF open CN 52.3
NKI50-35-XL nki 50 68 35 FAG open CN 60
NA4910 NA-49 50 72 22 SKF open CN 47.3
NA4910-XL na49 50 72 22 FAG open CN 53
NA4910-2RS NA-49 50 72 23 SKF 2RS CN 40.2
NKIA5910 NKIA 50 72 30 SKF open CN 47.3
NKIB5910 NKIB 50 72 34 SKF open CN 47.3
NA6910 NA-69 50 72 40 SKF open CN 73.7
NA6910-ZW-XL na69 50 72 40 FAG open CN 82
NKIS50 NKIS 50 80 28 SKF open CN 62.7
NKIS50-XL nkis 50 80 28 FAG open CN 71

Needle Roller Thrust Bearings (1)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
AXK5070 AXK 50 70 3 SKF open CN 28.5

Pillow Block Bearings (6)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
UCFL210 UCFL 50 90 51.6 NTN 2RS — 39
UCP210 UCP 50 90 51.6 NTN 2RS — 39
UCFLX10 UCFL 50 110 55.6 NTN 2RS — 48
UCPX10 UCP 50 110 55.6 NTN 2RS — 48
UCFL310 UCFL 50 110 61 NTN 2RS — 68.5
UCP310 UCP 50 110 61 NTN 2RS — 68.5

Self-Aligning Ball Bearings (20)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
11210-TN9 11200 50 90 20 SKF open CN 26.5
1210 1200 50 90 20 NTN open — 22.8
1210-EKTN9 1200 50 90 20 SKF open CN 26.5
1210-ETN9 1200 50 90 20 SKF open CN 26.5
1210K 1200 50 90 20 NTN open — 22.8
2210 2200 50 90 23 NTN open — 23.3
2210-E-2RS1KTN9 2200 50 90 23 SKF 2RS CN 22.9
2210-E-2RS1TN9 2200 50 90 23 SKF 2RS CN 22.9
2210-EKTN9 2200 50 90 23 SKF open CN 33.8
2210-ETN9 2200 50 90 23 SKF open CN 33.8
2210K 2200 50 90 23 NTN open — 23.3
1310 1300 50 110 27 NTN open — 43.5
1310-EKTN9 1300 50 110 27 SKF open CN 43.6
1310-ETN9 1300 50 110 27 SKF open CN 43.6
1310K 1300 50 110 27 NTN open — 43.5
2310 2300 50 110 40 NTN open — 65
2310-E-2RS1KTN9 2300 50 110 40 SKF 2RS CN 43.6
2310-E-2RS1TN9 2300 50 110 40 SKF 2RS CN 43.6
2310-K 2300 50 110 40 SKF open CN 63.7
2310K 2300 50 110 40 NTN open — 65

Spherical Roller Bearings (16)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
22210 22200 50 90 23 SKF open CN 107
22210-EK 22200 50 90 23 SKF open CN 107
22210EAD1 22200 50 90 23 NTN open CN 130
22210EAKD1 22200 50 90 23 NTN open CN 130
22210EMD1 22200 50 90 23 NTN open CN 125
22210EMKD1 22200 50 90 23 NTN open CN 125
21310 21300 50 110 27 SKF open CN 159
21310-EK 21300 50 110 27 SKF open CN 159
21310C 21300 50 110 27 NTN open CN 131
21310CK 21300 50 110 27 NTN open CN 131
22310 22300 50 110 40 SKF open CN 228
22310-EK 22300 50 110 40 SKF open CN 228
22310EAD1 22300 50 110 40 NTN open CN 250
22310EAKD1 22300 50 110 40 NTN open CN 250
22310EMD1 22300 50 110 40 NTN open CN 250
22310EMKD1 22300 50 110 40 NTN open CN 250

Support Rollers (16)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
RSTO40 rsto 50 80 19.8 FAG open CN 23.7
STO50 sto 50 90 19.8 FAG open CN 25.5
NA2210-2RSR na22 50 90 22.7 FAG 2RS CN 26
NA-2210-2RS NA22 50 90 23 SKF open CN 28.1
NATR-50-PPA NATR 50 90 32 SKF open CN 30.8
NATR50-PP natr 50 90 32 FAG 2RS CN 31
NATV-50-PPA NATV 50 90 32 SKF open CN 39.1
NATV50-PP natv 50 90 32 FAG 2RS CN 39
NUTR-50-A NUTR 50 90 32 SKF open CN 58.3
NUTR50 nutr 50 90 32 FAG open CN 57
PWTR-50-2RS PWTR 50 90 32 SKF open CN 42.9
PWTR50-2RS-XL pwtr 50 90 32 FAG 2RS CN 46
NUTR-50110-A NUTR 50 110 32 SKF open CN 78.1
NUTR50110 nutr 50 110 32 FAG open CN 76
PWTR-50110-2RS PWTR 50 110 32 SKF open CN 57.2
PWTR50110-2RS-XL pwtr 50 110 32 FAG 2RS CN 59

Tapered Roller Bearings (46)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
32910 32900 50 72 15 NTN open CN 35
32910XU 32900 50 72 15 NTN open CN 39.5
32010 32000 50 80 20 FAG open CN 75
32010-SKF 32000 50 80 20 SKF open CN 75.1
32010X 32000 50 80 20 NTN open CN 69.5
33010 33000 50 80 24 SKF open CN 84.8
33010-NTN 33000 50 80 24 NTN open CN 77.5
32010X-DF matched-df 50 80 40 SKF open CN 129
33010-DF matched-df 50 80 48 SKF open CN 145
32010T50X-DB matched-db 50 80 50 SKF open CN 129
JLM104948-JLM104910 4t-inch 50 82 21.5 NTN open CN 77.5
JLM704649-JLM704610 4t-inch 50 84 22 NTN open CN 77.5
33110 33100 50 85 26 SKF open CN 106
33110-NTN 33100 50 85 26 NTN open CN 96
365-362A 4t-inch 50 88.9 20.638 NTN open CN 85
366-362A 4t-inch 50 88.9 20.638 NTN open CN 85
30210 30200 50 90 21.75 SKF open CN 93.1
30210-NTN 30200 50 90 21.75 NTN open CN 85.5
32210 32200 50 90 24.75 FAG open CN 104
32210-NTN 32200 50 90 24.75 NTN open CN 97
32210-SKF 32200 50 90 24.75 SKF open CN 101
JM205149-JM205110 4t-inch 50 90 28 NTN open CN 118
33210 33200 50 90 32 SKF open CN 142
33210-NTN 33200 50 90 32 NTN open CN 127
30210-DF matched-df 50 90 43.5 SKF open CN 160
430210 4t-430 50 90 49 NTN open CN 147
32210-DF matched-df 50 90 49.5 SKF open CN 173
432210U 4t-432 50 90 55 NTN open CN 166
33210-DF matched-df 50 90 64 SKF open CN 243
32210T67-5-DB matched-db 50 90 67.5 SKF open CN 173
T2ED050 T2ED 50 100 36 NTN open CN 167
T7FC050 T7FC 50 105 32 NTN open CN 119
JHM807045-JHM807012 4t-inch 50 105 37 NTN open CN 153
T7FC050T69-DTC10 matched-dt 50 105 69 SKF open CN 229
396-394A 4t-inch 50 110 22 NTN open CN 99.5
30310 30300 50 110 29.25 SKF open CN 154
30310-NTN 30300 50 110 29.25 NTN open CN 147
30310D 30300 50 110 29.25 NTN open CN 126
31310 31300 50 110 29.25 SKF open CN 131
32310 32300 50 110 42.25 SKF open CN 211
32310C 32300 50 110 42.25 NTN open CN 178
32310U 32300 50 110 42.25 NTN open CN 204
31310-DF matched-df 50 110 58.5 SKF open CN 224
430310 4t-430 50 110 64 NTN open CN 252
430310DX 4t-430 50 110 64 NTN open CN 216
432310U 4t-432 50 110 90 NTN open CN 350

Thrust Ball Bearings (16)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
51110 51100 50 70 14 NTN open CN 28.8
51110-SKF 51100 50 70 14 SKF open CN 27
51210 51200 50 78 22 NTN open CN 48.5
51210-SKF 51200 50 78 22 SKF open CN 49.4
53210 53200 50 78 23.5 SKF open CN 49.4
51310 51300 50 95 31 NTN open CN 96.5
51310-SKF 51300 50 95 31 SKF open CN 81.9
53310 53300 50 95 34.3 SKF open CN 81.9
52212 52200 50 95 46 SKF open CN 59.2
51410 51400 50 110 43 NTN open — 159
51410-SKF 51400 50 110 43 SKF open CN 159
51410A 51400 50 110 43 NTN open CN 148
53410 53400 50 110 45.6 SKF open CN 159
52312 52300 50 110 64 SKF open CN 101
54312 54300 50 110 70.7 SKF open CN 101
52412-M 52400 50 130 93 SKF open CN 199

Exact-dimension interchange groups at 50 mm bore

These d×D×B envelopes at a 50 mm bore are shared by several series or brands — the starting point for a dimensional cross reference:

Selecting a 50 mm bore bearing

The bore fixes the shaft, not the bearing capacity. At 50 mm the catalog spans 55–130 mm outside diameter: the light sections suit compact housings and moderate duty, while the larger ODs use bigger rolling elements and carry substantially more load. Select first by the required dynamic load rating C for the calculated L10 life, then by available radial space.

For a rotating inner ring a k5 shaft seat with an H7 housing is the usual starting point; an interference fit plus thermal growth consumes internal clearance, so C3 is the common industrial default rather than CN. Sealed variants (-2RS, -ZZ) trade a small amount of speed for contamination protection and maintenance-free operation — compare the sealed and open versions of the same envelope before substituting one for the other.

Frequently asked questions

What bearings have a 50 mm bore?

This index lists 377 verified bearing models with a 50 mm (1.969 in) bore across 15 bearing types, from 55 to 130 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.

How do I choose between the 55–130 mm OD options for a 50 mm shaft?

On a fixed 50 mm bore, a smaller outside diameter means a lighter section for limited housing space and moderate load; a larger OD with a wider ring carries more radial and axial load and lasts longer at the same duty. Compare the C dynamic load rating in each model table, then match seal type, internal clearance (CN/C3/C4) and precision class to the actual mounting and operating temperature.

What shaft fit and bore code apply to 50 mm bearings?

A 50 mm bore on a rotating inner ring normally uses a k5 shaft seat with an H7 housing bore (verify against the catalogue for heavy or stationary-ring duty). In the ISO designation system 50 mm is bore code 10 (code × 5), so a 62-series bearing with this bore is the 6210.