MPNbase

55 mm bore bearings

348 models with a 55 mm (2.165 in) bore across 15 bearing types, outside diameters from 60 to 250 mm. Tables are grouped by type; open a model for full specs and equivalents.

348 models 60–250 mm OD range 5 brands

Adapter Sleeves (3)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
H-211 H2 55 75 37 SKF — — —
H-311 H3 55 75 45 SKF — — —
H-311-E H3 55 75 45 SKF — — —

Angular Contact Ball Bearings (43)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
71811 71800 55 72 9 GENERIC-ISO open CN —
71911 71900 55 80 13 GENERIC-ISO open CN —
7911 7900 55 80 13 NTN open CN 19.2
7011 7000 55 90 18 GENERIC-ISO open CN —
7011-NTN 7000 55 90 18 NTN open CN 34.5
7211 7200 55 100 21 SKF open CN 46.2
7211-ACCBM 7200 55 100 21 SKF open CN 57
7211-BE-2RZP 7200 55 100 21 SKF RSR CN 46.2
7211-BECBM 7200 55 100 21 SKF open CN 49
7211-BECBP 7200 55 100 21 SKF open CN 49
7211-BECBPH 7200 55 100 21 SKF open CN 49
7211-BECBY 7200 55 100 21 SKF open CN 51
7211-BEP 7200 55 100 21 SKF open CN 46.2
7211-NTN 7200 55 100 21 NTN open CN 56.5
7211B 7200 55 100 21 NTN open CN 51.5
QJ-211-MA QJ200 55 100 21 SKF open CN 85
QJ-211-N2MA QJ200 55 100 21 SKF open CN 85
QJ211 QJ200 55 100 21 NTN open CN 71
3211-A 3200 55 100 33.3 SKF open CN 60
3211-A-2RS1 3200 55 100 33.3 SKF 2RS CN 60
3211-A-2Z 3200 55 100 33.3 SKF ZZ CN 60
3211-ATN9 3200 55 100 33.3 SKF open CN 60
5211S 5200S 55 100 33.3 NTN open CN 56
7311 7300 55 120 29 SKF open CN 79.3
7311-ACCBM 7300 55 120 29 SKF open CN 96.5
7311-BECBM 7300 55 120 29 SKF open CN 85
7311-BECBP 7300 55 120 29 SKF open CN 85
7311-BECBPH 7300 55 120 29 SKF open CN 85
7311-BECBY 7300 55 120 29 SKF open CN 90
7311-BEP 7300 55 120 29 SKF open CN 79.3
7311-NTN 7300 55 120 29 NTN open CN 95
7311B 7300 55 120 29 NTN open CN 87
QJ-311-MA QJ300 55 120 29 SKF open CN 137
QJ-311-N2MA QJ300 55 120 29 SKF open CN 137
QJ311 QJ300 55 120 29 NTN open CN 118
3311-A 3300 55 120 49.2 SKF open CN 112
3311-A-2RS1 3300 55 120 49.2 SKF 2RS CN 112
3311-A-2Z 3300 55 120 49.2 SKF ZZ CN 112
3311-ATN9 3300 55 120 49.2 SKF open CN 112
3311-DMA 3300 55 120 49.2 SKF open CN 111
3311-DNRCBM 3300 55 120 49.2 SKF open CN 95.6
5311S 5300S 55 120 49.2 NTN open CN 95
7411 7400 55 140 33 GENERIC-ISO open CN —

CARB Toroidal Roller Bearings (7)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
C6911-V C6900 55 80 45 SKF open CN 180
C2211-KTN9 C2200 55 100 25 SKF open CN 116
C2211-KV C2200 55 100 25 SKF open CN 132
C2211-TN9 C2200 55 100 25 SKF open CN 116
C2211-V C2200 55 100 25 SKF open CN 132
C2212-KTN9-AHX312 carb-withdrawal-sleeve 55 110 28 SKF open CN 143
C2212-KTN9-H312-E carb-adapter-sleeve 55 110 28 SKF open CN 143

Cylindrical Roller Bearings (75)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
N1011 N1000 55 90 18 NTN open CN 42
NJ1011 NJ1000 55 90 18 NTN open CN 42
NJ1011-ECP NJ1000 55 90 18 SKF open CN 57.2
NU1011 NU1000 55 90 18 NTN open CN 42
NU1011-ECP NU1000 55 90 18 SKF open CN 57.2
NUP1011 NUP1000 55 90 18 NTN open CN 42
NCF3011-CV NCF3000 55 90 26 SKF open CN 105
NN3011 NN3000 55 90 26 NTN open CN 77
NN3011K NN3000 55 90 26 NTN open CN 77
SL183011-XL sl1830 55 90 26 FAG open CN 120
NNCF5011-CV NNCF5000 55 90 46 SKF open CN 190
NNF5011-ADB-2LSV NNF5000 55 90 46 SKF 2RS CN 128
SL185011-XL sl1850 55 90 46 FAG open CN 206
N211 N200 55 100 21 NTN open CN 64.5
N211-ECP N200 55 100 21 SKF open CN 96.5
N211EA N200 55 100 21 NTN open CN 102
NF211 NF200 55 100 21 NTN open CN 64.5
NF211EA NF200 55 100 21 NTN open CN 102
NJ211 NJ200 55 100 21 NTN open CN 64.5
NJ211-ECP NJ200 55 100 21 SKF open CN 96.5
NJ211EA NJ200 55 100 21 NTN open CN 102
NU211 NU200 55 100 21 SKF open CN 96.5
NU211-NTN NU200 55 100 21 NTN open CN 64.5
NU211EA NU200 55 100 21 NTN open CN 102
NUP211 NUP200 55 100 21 NTN open CN 64.5
NUP211-ECP NUP200 55 100 21 SKF open CN 96.5
NUP211EA NUP200 55 100 21 NTN open CN 102
N2211 N2200 55 100 25 NTN open CN 83.5
N2211EA N2200 55 100 25 NTN open CN 120
NF2211EA NF2200 55 100 25 NTN open CN 120
NJ2211 NJ2200 55 100 25 NTN open CN 83.5
NJ2211-ECP NJ2200 55 100 25 SKF open CN 114
NJ2211EA NJ2200 55 100 25 NTN open CN 120
NU2211 NU2200 55 100 25 SKF open CN 114
NU2211-NTN NU2200 55 100 25 NTN open CN 83.5
NU2211EA NU2200 55 100 25 NTN open CN 120
NUP2211 NUP2200 55 100 25 NTN open CN 83.5
NUP2211-ECP NUP2200 55 100 25 SKF open CN 114
NUP2211EA NUP2200 55 100 25 NTN open CN 120
SL182211-XL sl1822 55 100 25 FAG open CN 140
N311 N300 55 120 29 NTN open CN 123
N311-ECP N300 55 120 29 SKF open CN 156
N311EA N300 55 120 29 NTN open CN 162
NF311 NF300 55 120 29 NTN open CN 123
NF311EA NF300 55 120 29 NTN open CN 162
NJ311 NJ300 55 120 29 NTN open CN 123
NJ311-ECP NJ300 55 120 29 SKF open CN 156
NJ311EA NJ300 55 120 29 NTN open CN 162
NU311 NU300 55 120 29 SKF open CN 156
NU311-NTN NU300 55 120 29 NTN open CN 123
NU311EA NU300 55 120 29 NTN open CN 162
NUP311 NUP300 55 120 29 NTN open CN 123
NUP311-ECP NUP300 55 120 29 SKF open CN 156
NUP311EA NUP300 55 120 29 NTN open CN 162
N2311 N2300 55 120 43 NTN open CN 164
N2311EA N2300 55 120 43 NTN open CN 238
NF2311EA NF2300 55 120 43 NTN open CN 238
NJ2311 NJ2300 55 120 43 NTN open CN 164
NJ2311-ECP NJ2300 55 120 43 SKF open CN 232
NJ2311EA NJ2300 55 120 43 NTN open CN 238
NJG2311-VH NJG2300 55 120 43 SKF open CN 233
NU2311 NU2300 55 120 43 SKF open CN 232
NU2311-NTN NU2300 55 120 43 NTN open CN 164
NU2311EA NU2300 55 120 43 NTN open CN 238
NUP2311 NUP2300 55 120 43 NTN open CN 164
NUP2311-ECP NUP2300 55 120 43 SKF open CN 232
NUP2311EA NUP2300 55 120 43 NTN open CN 238
SL192311-XL sl1923 55 120 43 FAG open CN 270
N411 N400 55 140 33 NTN open CN 154
NF411 NF400 55 140 33 NTN open CN 154
NJ411 NJ400 55 140 33 SKF open CN 142
NJ411-NTN NJ400 55 140 33 NTN open CN 154
NU411 NU400 55 140 33 SKF open CN 142
NU411-NTN NU400 55 140 33 NTN open CN 154
NUP411 NUP400 55 140 33 NTN open CN 154

Cylindrical Roller Thrust Bearings (2)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
81111-TN 81100 55 78 16 SKF open CN 69.5
81211-TN 81200 55 90 25 SKF open CN 122

Deep Groove Ball Bearings (85)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
61811 61800 55 72 9 SKF open CN 9.04
61811-2RS 61800 55 72 9 SKF 2RS CN 9.04
61811-2RS-NSK 61800 55 72 9 NSK 2RS CN 9.7
61811-2RS-NTN 61800 55 72 9 NTN 2RS CN 9.75
61811-NSK 61800 55 72 9 NSK open CN 9.7
61811-NTN 61800 55 72 9 NTN open CN 9.75
61811-RSR 61800 55 72 9 SKF RSR CN 9.04
61811-RSR-NSK 61800 55 72 9 NSK RSR CN 9.7
61811-RSR-NTN 61800 55 72 9 NTN RSR CN 9.75
61811-ZZ 61800 55 72 9 NSK ZZ CN 9.7
61811-ZZ-NTN 61800 55 72 9 NTN ZZ CN 9.75
61911 61900 55 80 13 SKF open CN 16.5
61911-2RS 61900 55 80 13 SKF 2RS CN 16.5
61911-2RS-FAG 61900 55 80 13 FAG 2RS CN 17.7
61911-2RS-NSK 61900 55 80 13 NSK 2RS CN 17.6
61911-2RS-NTN 61900 55 80 13 NTN 2RS CN 17.7
61911-FAG 61900 55 80 13 FAG open CN 17.7
61911-NSK 61900 55 80 13 NSK open CN 17.6
61911-NTN 61900 55 80 13 NTN open CN 17.7
61911-RSR 61900 55 80 13 SKF RSR CN 16.5
61911-RSR-FAG 61900 55 80 13 FAG RSR CN 17.7
61911-RSR-NSK 61900 55 80 13 NSK RSR CN 17.6
61911-RSR-NTN 61900 55 80 13 NTN RSR CN 17.7
61911-ZZ 61900 55 80 13 NSK ZZ CN 17.6
61911-ZZ-NTN 61900 55 80 13 NTN ZZ CN 17.7
16011 16000 55 90 11 FAG open CN 19.3
16011-NTN 16000 55 90 11 NTN open CN 20.6
6011 6000 55 90 18 SKF open CN 29.6
6011-2RS 6000 55 90 18 SKF 2RS CN 29.6
6011-2RS-FAG 6000 55 90 18 FAG 2RS CN 30
6011-2RS-NSK 6000 55 90 18 NSK 2RS CN 31
6011-2RS-NTN 6000 55 90 18 NTN 2RS CN 31.5
6011-FAG 6000 55 90 18 FAG open CN 30
6011-M 6000 55 90 18 SKF open CN 29.6
6011-NSK 6000 55 90 18 NSK open CN 31
6011-NTN 6000 55 90 18 NTN open CN 31.5
6011-RSR 6000 55 90 18 NSK RSR CN 31
6011-RSR-NTN 6000 55 90 18 NTN RSR CN 31.5
6011-ZZ 6000 55 90 18 SKF ZZ CN 29.6
6011-ZZ-FAG 6000 55 90 18 FAG ZZ CN 30
6011-ZZ-NSK 6000 55 90 18 NSK ZZ CN 31
6011-ZZ-NTN 6000 55 90 18 NTN ZZ CN 31.5
211 200 55 100 21 SKF open CN 48.4
211-ZZ 200 55 100 21 SKF ZZ CN 48.4
6211 6200 55 100 21 SKF open CN 46.2
6211-2RS 6200 55 100 21 SKF 2RS CN 46.2
6211-2RS-FAG 6200 55 100 21 FAG 2RS CN 46.5
6211-2RS-NSK 6200 55 100 21 NSK 2RS CN 47.5
6211-2RS-NTN 6200 55 100 21 NTN 2RS CN 48
6211-FAG 6200 55 100 21 FAG open CN 46.5
6211-M 6200 55 100 21 SKF open CN 46.2
6211-NSK 6200 55 100 21 NSK open CN 47.5
6211-NTN 6200 55 100 21 NTN open CN 48
6211-RSR 6200 55 100 21 NSK RSR CN 47.5
6211-RSR-NTN 6200 55 100 21 NTN RSR CN 48
6211-ZZ 6200 55 100 21 SKF ZZ CN 46.2
6211-ZZ-FAG 6200 55 100 21 FAG ZZ CN 46.5
6211-ZZ-NSK 6200 55 100 21 NSK ZZ CN 47.5
6211-ZZ-NTN 6200 55 100 21 NTN ZZ CN 48
4211-ATN9 4200 55 100 25 SKF open CN 44.9
62211-2RS 62200 55 100 25 SKF 2RS CN 43.6
311 300 55 120 29 SKF open CN 79.2
311-ZZ 300 55 120 29 SKF ZZ CN 79.2
6311 6300 55 120 29 SKF open CN 74.1
6311-2RS 6300 55 120 29 SKF 2RS CN 74.1
6311-2RS-FAG 6300 55 120 29 FAG 2RS CN 83
6311-2RS-NSK 6300 55 120 29 NSK 2RS CN 78.5
6311-2RS-NTN 6300 55 120 29 NTN 2RS CN 79.5
6311-FAG 6300 55 120 29 FAG open CN 83
6311-M 6300 55 120 29 SKF open CN 74.1
6311-NSK 6300 55 120 29 NSK open CN 78.5
6311-NTN 6300 55 120 29 NTN open CN 79.5
6311-RSR 6300 55 120 29 NSK RSR CN 78.5
6311-RSR-NTN 6300 55 120 29 NTN RSR CN 79.5
6311-ZZ 6300 55 120 29 SKF ZZ CN 74.1
6311-ZZ-FAG 6300 55 120 29 FAG ZZ CN 83
6311-ZZ-NSK 6300 55 120 29 NSK ZZ CN 78.5
6311-ZZ-NTN 6300 55 120 29 NTN ZZ CN 79.5
4311-ATN9 4300 55 120 43 SKF open CN 97.5
62311-2RS 62300 55 120 43 SKF 2RS CN 71.5
6411 6400 55 140 33 SKF open CN 99.5
6411-2RS 6400 55 140 33 GENERIC-ISO 2RS CN 99.5
6411-FAG 6400 55 140 33 FAG open CN 101
6411-NTN 6400 55 140 33 NTN open CN 98.5
6411-ZZ 6400 55 140 33 NTN ZZ CN 98.5

Insert Bearings (Y-bearings) (7)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
1726211-2RS1 17262 55 100 21 SKF 2RS CN 43.6
YET-211 YEL2 55 100 32.6 SKF open CN 43.6
YSP-211-SB-2F YSP2 55 100 49.2 SKF 2RS CN 43.6
YAR-211-2F YAR2 55 100 55.6 SKF 2RS CN 43.6
YAR-211-2RF YAR2 55 100 55.6 SKF 2RS CN 43.6
YEL-211-2F YEL2 55 100 55.6 SKF 2RS CN 43.6
YSA-212-2FK-H-2312 YSA2 55 110 42.5 SKF 2RS CN 52.7

Needle Roller Bearings (27)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
K55X60X20 K 55 60 20 SKF open CN 27
K55X60X30 K 55 60 30 SKF open CN 39.6
K55X62X18 K 55 62 18 SKF open CN 34.1
HK5520 HK 55 63 20 SKF open CN 30.3
HK5528 HK 55 63 28 SKF open CN 41.8
K55X63X32 K 55 63 32 SKF open CN 59.4
RNAO55X68X20-XL rnao 55 68 20 FAG open CN 32
NK55-25 NK 55 68 25 SKF open CN 40.2
NK55-25-D-XL nk 55 68 25 FAG open CN 57
NK55-25-XL nk 55 68 25 FAG open CN 45.5
NK55-35 NK 55 68 35 SKF open CN 52.3
NK55-35-XL nk 55 68 35 FAG open CN 60
NKS55 NKS 55 72 22 SKF open CN 44.6
NKS55-XL nks 55 72 22 FAG open CN 51
NKI55-25-TN NKI 55 72 25 SKF open CN 46.8
NKI55-25-TV-XL nki 55 72 25 FAG open CN 53
NKI55-25-TW-XL nki 55 72 25 FAG open CN 52
NKI55-35 NKI 55 72 35 SKF open CN 55
NKI55-35-XL nki 55 72 35 FAG open CN 63
NA4911 NA-49 55 80 25 SKF open CN 57.2
NA4911-XL na49 55 80 25 FAG open CN 65
NKIA5911 NKIA 55 80 34 SKF open CN 57.2
NKIB5911 NKIB 55 80 38 SKF open CN 57.2
NA6911 NA-69 55 80 45 SKF open CN 89.7
NA6911-ZW-XL na69 55 80 45 FAG open CN 102
NKIS55 NKIS 55 85 28 SKF open CN 66
NKIS55-XL nkis 55 85 28 FAG open CN 75

Needle Roller Thrust Bearings (1)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
AXK5578 AXK 55 78 3 SKF open CN 34.5

Pillow Block Bearings (5)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
UCFL211 UCFL 55 100 55.6 NTN 2RS — 48
UCP211 UCP 55 100 55.6 NTN 2RS — 48
UCPX11 UCP 55 120 65.1 NTN 2RS — 58
UCFL311 UCFL 55 120 66 NTN 2RS — 79.5
UCP311 UCP 55 120 66 NTN 2RS — 79.5

Self-Aligning Ball Bearings (17)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
1211 1200 55 100 21 NTN open — 26.9
1211-EKTN9 1200 55 100 21 SKF open CN 27.6
1211-ETN9 1200 55 100 21 SKF open CN 27.6
1211K 1200 55 100 21 NTN open — 26.9
2211 2200 55 100 25 NTN open — 26.7
2211-E-2RS1KTN9 2200 55 100 25 SKF 2RS CN 27.6
2211-E-2RS1TN9 2200 55 100 25 SKF 2RS CN 27.6
2211-EKTN9 2200 55 100 25 SKF open CN 39
2211-ETN9 2200 55 100 25 SKF open CN 39
2211K 2200 55 100 25 NTN open — 26.7
1311 1300 55 120 29 NTN open — 51.5
1311-EKTN9 1300 55 120 29 SKF open CN 50.7
1311-ETN9 1300 55 120 29 SKF open CN 50.7
1311K 1300 55 120 29 NTN open — 51.5
2311 2300 55 120 43 NTN open — 76.5
2311-K 2300 55 120 43 SKF open CN 76.1
2311K 2300 55 120 43 NTN open — 76.5

Spherical Roller Bearings (16)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
22211 22200 55 100 25 SKF open CN 129
22211-EK 22200 55 100 25 SKF open CN 129
22211EAD1 22200 55 100 25 NTN open CN 155
22211EAKD1 22200 55 100 25 NTN open CN 155
22211EMD1 22200 55 100 25 NTN open CN 148
22211EMKD1 22200 55 100 25 NTN open CN 148
21311 21300 55 120 29 SKF open CN 159
21311-EK 21300 55 120 29 SKF open CN 159
21311-NTN 21300 55 120 29 NTN open CN 161
21311K 21300 55 120 29 NTN open CN 161
22311 22300 55 120 43 SKF open CN 280
22311-EK 22300 55 120 43 SKF open CN 280
22311EAD1 22300 55 120 43 NTN open CN 296
22311EAKD1 22300 55 120 43 NTN open CN 296
22311EMD1 22300 55 120 43 NTN open CN 296
22311EMKD1 22300 55 120 43 NTN open CN 296

Support Rollers (1)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
RSTO45 rsto 55 85 19.8 FAG open CN 25

Tapered Roller Bearings (43)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
32911 32900 55 80 17 SKF open CN 51.7
32911XU 32900 55 80 17 NTN open CN 49.5
32011 32000 55 90 23 FAG open CN 96
32011-SKF 32000 55 90 23 SKF open CN 99.4
32011X 32000 55 90 23 NTN open CN 89
JLM506849-JLM506810 4t-inch 55 90 23 NTN open CN 86
33011 33000 55 90 27 SKF open CN 111
33011-NTN 33000 55 90 27 NTN open CN 102
32011X-DF matched-df 55 90 46 SKF open CN 170
33011-DF matched-df 55 90 54 SKF open CN 191
33011T59-DB matched-db 55 90 59 SKF open CN 191
JM207049-JM207010 4t-inch 55 95 29 NTN open CN 119
33111 33100 55 95 30 SKF open CN 136
33111-NTN 33100 55 95 30 NTN open CN 123
33111T88-DB matched-db 55 95 88 SKF open CN 232
385-382A 4t-inch 55 96.838 21 NTN open CN 86.5
30211 30200 55 100 22.75 SKF open CN 111
30211-NTN 30200 55 100 22.75 NTN open CN 103
32211 32200 55 100 26.75 FAG open CN 130
32211-NTN 32200 55 100 26.75 NTN open CN 120
32211-SKF 32200 55 100 26.75 SKF open CN 130
33211 33200 55 100 35 SKF open CN 170
33211-NTN 33200 55 100 35 NTN open CN 153
30211-DF matched-df 55 100 45.5 SKF open CN 190
430211X 4t-430 55 100 51 NTN open CN 177
32211-DF matched-df 55 100 53.5 SKF open CN 222
432211U 4t-432 55 100 60 NTN open CN 206
JH307749-JH307710 4t-inch 55 110 39 NTN open CN 192
T7FC055 T7FC 55 115 34 NTN open CN 137
T7FC055T73-DTC10 matched-dt 55 115 73 SKF open CN 266
30311 30300 55 120 31.5 SKF open CN 176
30311-NTN 30300 55 120 31.5 NTN open CN 172
30311D 30300 55 120 31.5 NTN open CN 146
31311 31300 55 120 31.5 SKF open CN 149
32311 32300 55 120 45.5 SKF open CN 245
32311BR flanged 55 120 45.5 SKF open CN 233
32311CU 32300 55 120 45.5 NTN open CN 204
32311U 32300 55 120 45.5 NTN open CN 238
30311-DF matched-df 55 120 63 SKF open CN 302
31311-DF matched-df 55 120 63 SKF open CN 256
430311DX 4t-430 55 120 70 NTN open CN 251
430311XU 4t-430 55 120 70 NTN open CN 295
432311U 4t-432 55 120 97 NTN open CN 410

Thrust Ball Bearings (16)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
51111 51100 55 78 16 NTN open CN 35
51111-SKF 51100 55 78 16 SKF open CN 30.2
51211 51200 55 90 25 NTN open CN 69.5
51211-SKF 51200 55 90 25 SKF open CN 58.5
53211 53200 55 90 27.3 SKF open CN 58.5
52213 52200 55 100 47 SKF open CN 60.5
51311 51300 55 105 35 NTN open CN 119
51311-SKF 51300 55 105 35 SKF open CN 101
53311 53300 55 105 39.3 SKF open CN 101
52214 52200 55 105 47 SKF open CN 62.4
52313 52300 55 115 64 SKF open CN 106
51411 51400 55 120 48 NTN open CN 178
51411-SKF 51400 55 120 48 SKF open CN 195
53411 53400 55 120 50.5 SKF open CN 195
52314 52300 55 125 72 SKF open CN 135
52414-M 52400 55 250 107 SKF open CN 234

Exact-dimension interchange groups at 55 mm bore

These d×D×B envelopes at a 55 mm bore are shared by several series or brands — the starting point for a dimensional cross reference:

Selecting a 55 mm bore bearing

The bore fixes the shaft, not the bearing capacity. At 55 mm the catalog spans 60–250 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 55 mm bore?

This index lists 348 verified bearing models with a 55 mm (2.165 in) bore across 15 bearing types, from 60 to 250 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.

How do I choose between the 60–250 mm OD options for a 55 mm shaft?

On a fixed 55 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 55 mm bearings?

A 55 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 55 mm is bore code 11 (code × 5), so a 62-series bearing with this bore is the 6211.