MPNbase

20 mm bore bearings

337 models with a 20 mm (0.787 in) bore across 16 bearing types, outside diameters from 26 to 72 mm. Tables are grouped by type; open a model for full specs and equivalents.

337 models 26–72 mm OD range 5 brands

Adapter Sleeves (3)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
H-204 H2 20 32 24 SKF — — —
H-304 H3 20 32 28 SKF — — —
H-304-E H3 20 38 28 SKF — — —

Angular Contact Ball Bearings (41)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
71804 71800 20 32 7 GENERIC-ISO open CN —
71904 71900 20 37 9 GENERIC-ISO open CN —
7004 7000 20 42 12 GENERIC-ISO open CN —
7004-NTN 7000 20 42 12 NTN open CN 10.7
7204 7200 20 47 14 SKF open CN 13.3
7204-ACCBM 7200 20 47 14 SKF open CN 16
7204-BE-2RZP 7200 20 47 14 SKF RSR CN 13.3
7204-BECBM 7200 20 47 14 SKF open CN 14.3
7204-BECBP 7200 20 47 14 SKF open CN 14.3
7204-BECBPH 7200 20 47 14 SKF open CN 14.3
7204-BECBY 7200 20 47 14 SKF open CN 14.3
7204-BEP 7200 20 47 14 SKF open CN 13.3
7204-NTN 7200 20 47 14 NTN open CN 16.1
7204B 7200 20 47 14 NTN open CN 14.7
3204-A 3200 20 47 20.6 SKF open CN 20.4
3204-A-2RS1 3200 20 47 20.6 SKF 2RS CN 20.4
3204-A-2Z 3200 20 47 20.6 SKF ZZ CN 20.4
3204-ATN9 3200 20 47 20.6 SKF open CN 20.4
5204S 5200S 20 47 20.6 NTN open CN 19.6
5204SCLLD 5200S 20 47 20.6 NTN 2RS CN 15.9
5204SCLLM 5200S 20 47 20.6 NTN 2RS CN 15.9
5204SCZZ 5200S 20 47 20.6 NTN ZZ CN 15.9
7304 7300 20 52 15 SKF open CN 17.4
7304-ACCBM 7300 20 52 15 SKF open CN 20.8
7304-BE-2RZP 7300 20 52 15 SKF RSR CN 17.4
7304-BECBM 7300 20 52 15 SKF open CN 19
7304-BECBP 7300 20 52 15 SKF open CN 19
7304-BECBPH 7300 20 52 15 SKF open CN 19
7304-BECBY 7300 20 52 15 SKF open CN 20.4
7304-BEP 7300 20 52 15 SKF open CN 17.4
7304-NTN 7300 20 52 15 NTN open CN 20.7
7304B 7300 20 52 15 NTN open CN 19.2
QJ-304-MA QJ300 20 52 15 SKF open CN 32
QJ-304-N2MA QJ300 20 52 15 SKF open CN 32
QJ-304-N2PHAS QJ300 20 52 15 SKF open CN 32
3304-A 3300 20 52 22.2 SKF open CN 23.6
3304-A-2RS1 3300 20 52 22.2 SKF 2RS CN 23.6
3304-A-2Z 3300 20 52 22.2 SKF ZZ CN 23.6
3304-ATN9 3300 20 52 22.2 SKF open CN 23.6
5304S 5300S 20 52 22.2 NTN open CN 24.6
7404 7400 20 72 19 GENERIC-ISO open CN —

Cam Followers (16)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
KRE-35-PPA KR 20 35 52 SKF open CN 9.52
NUKRE-35-A NUKR 20 35 52 SKF open CN 16.8
KR-47-PPA KR 20 47 66 SKF open CN 14.7
KR47-PP kr 20 47 66 FAG 2RS CN 15.4
KRE47-PP kre 20 47 66 FAG 2RS CN 15.4
KRV-47-PPA KR 20 47 66 SKF open CN 19.4
KRV47-PP krv 20 47 66 FAG 2RS CN 20.3
NUKR-47-A NUKR 20 47 66 SKF open CN 28.6
PWKR-47-2RS PWKR 20 47 66 SKF open CN 22.9
KR-52-PPA KR 20 52 66 SKF open CN 15.7
KR52-PP kr 20 52 66 FAG 2RS CN 16.6
KRE52-PP kre 20 52 66 FAG 2RS CN 16.6
KRV-52-PPA KR 20 52 66 SKF open CN 20.9
KRV52-PP krv 20 52 66 FAG 2RS CN 22.3
NUKR-52-A NUKR 20 52 66 SKF open CN 29.7
PWKR-52-2RS PWKR 20 52 66 SKF open CN 23.8

Cam Rollers (3)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
361204-R 3612 20 52 14 SKF 2RS C3 11.4
305704-C-2Z 3057 20 52 20.6 SKF ZZ CN 16.5
305804-C-2Z 3058 20 52 20.6 SKF ZZ CN 16.5

Cylindrical Roller Bearings (39)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
NCF3004-CV NCF3000 20 42 16 SKF open CN 28.1
SL183004-XL sl1830 20 42 16 FAG open CN 30.5
NNCF5004-CV NNCF5000 20 42 30 SKF open CN 52.3
NNF5004-ADB-2LSV NNF5000 20 42 30 SKF 2RS CN 45.7
SL185004-XL sl1850 20 42 30 FAG open CN 53
N204-ECP N200 20 47 14 SKF open CN 28.5
N204EA N200 20 47 14 NTN open CN 32.5
NF204EA NF200 20 47 14 NTN open CN 32.5
NJ204-ECP NJ200 20 47 14 SKF open CN 28.5
NJ204EA NJ200 20 47 14 NTN open CN 32.5
NU204 NU200 20 47 14 SKF open CN 28.5
NU204EA NU200 20 47 14 NTN open CN 32.5
NUP204-ECP NUP200 20 47 14 SKF open CN 28.5
NUP204EA NUP200 20 47 14 NTN open CN 32.5
N2204EA N2200 20 47 18 NTN open CN 38.5
NF2204EA NF2200 20 47 18 NTN open CN 38.5
NJ2204-ECP NJ2200 20 47 18 SKF open CN 34.5
NJ2204EA NJ2200 20 47 18 NTN open CN 38.5
NU2204-ECP NU2200 20 47 18 SKF open CN 34.5
NU2204EA NU2200 20 47 18 NTN open CN 38.5
NUP2204EA NUP2200 20 47 18 NTN open CN 38.5
SL182204-XL sl1822 20 47 18 FAG open CN 45.5
N304-ECP N300 20 52 15 SKF open CN 35.5
N304EA N300 20 52 15 NTN open CN 37.5
NF304EA NF300 20 52 15 NTN open CN 37.5
NJ304-ECP NJ300 20 52 15 SKF open CN 35.5
NJ304EA NJ300 20 52 15 NTN open CN 37.5
NU304 NU300 20 52 15 SKF open CN 35.5
NU304EA NU300 20 52 15 NTN open CN 37.5
NUP304-ECP NUP300 20 52 15 SKF open CN 35.5
NUP304EA NUP300 20 52 15 NTN open CN 37.5
N2304EA N2300 20 52 21 NTN open CN 49.5
NF2304EA NF2300 20 52 21 NTN open CN 49.5
NJ2304-ECP NJ2300 20 52 21 SKF open CN 47.5
NJ2304EA NJ2300 20 52 21 NTN open CN 49.5
NU2304-ECP NU2300 20 52 21 SKF open CN 47.5
NU2304EA NU2300 20 52 21 NTN open CN 49.5
NUP2304-ECP NUP2300 20 52 21 SKF open CN 47.5
NUP2304EA NUP2300 20 52 21 NTN open CN 49.5

Cylindrical Roller Thrust Bearings (1)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
81104-TN 81100 20 35 10 SKF open CN 18.6

Deep Groove Ball Bearings (98)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
61804 61800 20 32 7 SKF open CN 4.03
61804-2RS 61800 20 32 7 SKF 2RS CN 4.03
61804-2RS-FAG 61800 20 32 7 FAG 2RS CN 4.02
61804-2RS-NSK 61800 20 32 7 NSK 2RS CN 4.4
61804-2RS-NTN 61800 20 32 7 NTN 2RS CN 4.45
61804-FAG 61800 20 32 7 FAG open CN 4.02
61804-NSK 61800 20 32 7 NSK open CN 4.4
61804-NTN 61800 20 32 7 NTN open CN 4.45
61804-RSR 61800 20 32 7 SKF RSR CN 4.03
61804-RSR-NSK 61800 20 32 7 NSK RSR CN 4.4
61804-RSR-NTN 61800 20 32 7 NTN RSR CN 4.45
61804-ZZ 61800 20 32 7 NSK ZZ CN 4.4
61804-ZZ-FAG 61800 20 32 7 FAG ZZ CN 4.02
61804-ZZ-NTN 61800 20 32 7 NTN ZZ CN 4.45
W61804-2RS 61800 20 32 7 SKF 2RS CN 3.12
W61804-ZZ 61800 20 32 7 SKF ZZ CN 3.12
61904 61900 20 37 9 SKF open CN 6.37
61904-2RS 61900 20 37 9 SKF 2RS CN 6.37
61904-2RS-FAG 61900 20 37 9 FAG 2RS CN 6.38
61904-2RS-NSK 61900 20 37 9 NSK 2RS CN 7
61904-2RS-NTN 61900 20 37 9 NTN 2RS CN 7.05
61904-FAG 61900 20 37 9 FAG open CN 6.38
61904-NSK 61900 20 37 9 NSK open CN 7
61904-NTN 61900 20 37 9 NTN open CN 7.05
61904-RSR 61900 20 37 9 SKF RSR CN 6.37
61904-RSR-NSK 61900 20 37 9 NSK RSR CN 7
61904-RSR-NTN 61900 20 37 9 NTN RSR CN 7.05
61904-ZZ 61900 20 37 9 NSK ZZ CN 7
61904-ZZ-FAG 61900 20 37 9 FAG ZZ CN 6.38
61904-ZZ-NTN 61900 20 37 9 NTN ZZ CN 7.05
W61904 61900 20 37 9 SKF open CN 5.53
W61904-2RS 61900 20 37 9 SKF 2RS CN 5.53
16004 16000 20 42 8 FAG open CN 7.91
16004-NTN 16000 20 42 8 NTN open CN 8.75
6004 6000 20 42 12 SKF open CN 9.95
6004-2RS 6000 20 42 12 SKF 2RS CN 9.95
6004-2RS-FAG 6000 20 42 12 FAG 2RS CN 10.6
6004-2RS-NSK 6000 20 42 12 NSK 2RS CN 10.3
6004-2RS-NTN 6000 20 42 12 NTN 2RS CN 10.4
6004-FAG 6000 20 42 12 FAG open CN 10.6
6004-NSK 6000 20 42 12 NSK open CN 10.3
6004-NTN 6000 20 42 12 NTN open CN 10.4
6004-RSR 6000 20 42 12 SKF RSR CN 9.95
6004-RSR-NSK 6000 20 42 12 NSK RSR CN 10.3
6004-RSR-NTN 6000 20 42 12 NTN RSR CN 10.4
6004-ZZ 6000 20 42 12 SKF ZZ CN 9.95
6004-ZZ-FAG 6000 20 42 12 FAG ZZ CN 10.6
6004-ZZ-NSK 6000 20 42 12 NSK ZZ CN 10.3
6004-ZZ-NTN 6000 20 42 12 NTN ZZ CN 10.4
W6004 6000 20 42 12 SKF open CN 8.06
W6004-2RS 6000 20 42 12 SKF 2RS CN 8.06
W6004-ZZ 6000 20 42 12 SKF ZZ CN 8.06
63004-2RS 63000 20 42 16 SKF 2RS CN 9.36
6204 6200 20 47 14 SKF open CN 13.5
6204-2RS 6200 20 47 14 SKF 2RS CN 13.5
6204-2RS-FAG 6200 20 47 14 FAG 2RS CN 14.7
6204-2RS-NSK 6200 20 47 14 NSK 2RS CN 14.1
6204-2RS-NTN 6200 20 47 14 NTN 2RS CN 14.2
6204-FAG 6200 20 47 14 FAG open CN 14.7
6204-NSK 6200 20 47 14 NSK open CN 14.1
6204-NTN 6200 20 47 14 NTN open CN 14.2
6204-RSR 6200 20 47 14 SKF RSR CN 13.5
6204-RSR-NSK 6200 20 47 14 NSK RSR CN 14.1
6204-RSR-NTN 6200 20 47 14 NTN RSR CN 14.2
6204-ZZ 6200 20 47 14 SKF ZZ CN 13.5
6204-ZZ-FAG 6200 20 47 14 FAG ZZ CN 14.7
6204-ZZ-NSK 6200 20 47 14 NSK ZZ CN 14.1
6204-ZZ-NTN 6200 20 47 14 NTN ZZ CN 14.2
W6204 6200 20 47 14 SKF open CN 10.8
W6204-2RS 6200 20 47 14 SKF 2RS CN 10.8
W6204-ZZ 6200 20 47 14 SKF ZZ CN 10.8
4204-ATN9 4200 20 47 18 SKF open CN 17.8
62204-2RS 62200 20 47 18 SKF 2RS CN 12.7
6304 6300 20 52 15 SKF open CN 16.8
6304-2RS 6300 20 52 15 SKF 2RS CN 16.8
6304-2RS-FAG 6300 20 52 15 FAG 2RS CN 16.9
6304-2RS-NSK 6300 20 52 15 NSK 2RS CN 17.5
6304-2RS-NTN 6300 20 52 15 NTN 2RS CN 17.6
6304-FAG 6300 20 52 15 FAG open CN 16.9
6304-NSK 6300 20 52 15 NSK open CN 17.5
6304-NTN 6300 20 52 15 NTN open CN 17.6
6304-RSR 6300 20 52 15 SKF RSR CN 15.9
6304-RSR-NSK 6300 20 52 15 NSK RSR CN 17.5
6304-RSR-NTN 6300 20 52 15 NTN RSR CN 17.6
6304-ZZ 6300 20 52 15 SKF ZZ CN 16.8
6304-ZZ-FAG 6300 20 52 15 FAG ZZ CN 16.9
6304-ZZ-NSK 6300 20 52 15 NSK ZZ CN 17.5
6304-ZZ-NTN 6300 20 52 15 NTN ZZ CN 17.6
W6304 6300 20 52 15 SKF open CN 13.8
W6304-2RS 6300 20 52 15 SKF 2RS CN 13.8
W6304-ZZ 6300 20 52 15 SKF ZZ CN 13.8
4304-ATN9 4300 20 52 21 SKF open CN 23.4
62304-2RS 62300 20 52 21 SKF 2RS CN 15.9
6404 6400 20 72 19 SKF open CN 30.7
6404-2RS 6400 20 72 19 GENERIC-ISO 2RS CN 30.7
6404-FAG 6400 20 72 19 FAG open CN 30.5
6404-NTN 6400 20 72 19 NTN open CN 31.5
6404-ZZ 6400 20 72 19 NTN ZZ CN 31.5

Insert Bearings (Y-bearings) (14)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
1726204-2RS1 17262 20 47 14 SKF 2RS CN 12.7
YET-204 YEL2 20 47 21 SKF open CN 12.7
YET-204-VL065 YEL2 20 47 21 SKF 2RS CN 12.7
YAT-204 YAR2 20 47 25.5 SKF open CN 12.7
YAR-204-2F YAR2 20 47 31 SKF 2RS CN 12.7
YAR-204-2RF YAR2 20 47 31 SKF 2RS CN 12.7
YAR-204-2RF-HV YAR2 20 47 31 SKF 2RS CN 10.8
YAR-204-2RF-VE495 YAR2 20 47 31 SKF 2RS CN 12.7
YAR-204-2RFGR-HV YAR2 20 47 31 SKF 2RS CN 10.8
YARAG-204 YAR2 20 47 31 SKF 2RS CN 12.7
YEL-204-2F YEL2 20 47 34.2 SKF 2RS CN 12.7
YEL-204-2RF-VL065 YEL2 20 47 34.2 SKF 2RS CN 12.7
YELAG-204 YEL2 20 47 34.2 SKF 2RS CN 12.7
YSA-205-2FK-H-2305 YSA2 20 52 24 SKF 2RS CN 14

Needle Roller Bearings (49)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
HK2010 HK 20 26 10 SKF open CN 6.16
HK2012 HK 20 26 12 SKF open CN 8.42
HK2012FM HK 20 26 12 NTN open — 8.75
HK2016 HK 20 26 16 SKF open CN 12.3
HK2016-2RS HK 20 26 16 SKF 2RS CN 8.42
HK2016F HK 20 26 16 NTN open — 12.5
HK2020 HK 20 26 20 SKF open CN 15.1
HK2020-2RS HK 20 26 20 SKF 2RS CN 12.3
HK2020F HK 20 26 20 NTN open — 16
HK2030 HK 20 26 30 SKF open CN 20.9
HK2030ZWFD HK 20 26 30 NTN open — 21.5
RNA4902 RNA-49 20 28 13 SKF open CN 11.2
RNA4902-2RS RNA-49 20 28 13 SKF 2RS CN 9.13
RNA4902-XL rna49 20 28 13 FAG open CN 12
RNAO20X28X13-XL rnao 20 28 13 FAG open CN 11.1
NK20-16 NK 20 28 16 SKF open CN 13.2
NK20-16-D-XL nk 20 28 16 FAG open CN 18.5
NK20-16-XL nk 20 28 16 FAG open CN 14.6
NK20-20 NK 20 28 20 SKF open CN 16.5
NK20-20-XL nk 20 28 20 FAG open CN 18.6
RNA6902 RNA-69 20 28 23 SKF open CN 17.2
RNA6902-XL rna69 20 28 23 FAG open CN 19.5
RNAO20X28X26-ZW-ASR1-XL rnao 20 28 26 FAG open CN 19
NX20 NX 20 30 28 SKF open CN 13.2
NX20-Z NX 20 30 28 SKF open CN 13.2
NKX20 NKX 20 30 30 SKF open CN 16.5
NKX20-Z NKX 20 30 30 SKF open CN 16.5
NKXR20 NKXR 20 30 30 SKF open CN 16.5
NKXR20-Z NKXR 20 30 30 SKF open CN 16.5
RNAO20X32X12-XL rnao 20 32 12 FAG open CN 15.1
NKI20-16 NKI 20 32 16 SKF open CN 15.4
NKI20-16-XL nki 20 32 16 FAG open CN 16.9
NKI20-20 NKI 20 32 20 SKF open CN 19
NKI20-20-XL nki 20 32 20 FAG open CN 21.4
NKS20 NKS 20 32 20 SKF open CN 23.3
NKS20-XL nks 20 32 20 FAG open CN 26
RPNA20-35 RPNA 20 35 16 SKF open CN 13.2
NAO20X35X17-XL nao 20 35 17 FAG open CN 16.8
NAO20X37X16-XL nao 20 37 16 FAG open CN 23.5
NA4904 NA-49 20 37 17 SKF open CN 21.6
NA4904-XL na49 20 37 17 FAG open CN 23.7
NA4904-2RS NA-49 20 37 18 SKF 2RS CN 19.4
NKIA5904 NKIA 20 37 23 SKF open CN 21.6
NKIB5904 NKIB 20 37 25 SKF open CN 21.6
NA6904 NA-69 20 37 30 SKF open CN 35.2
NA6904-XL na69 20 37 30 FAG open CN 40.5
NKIS20 NKIS 20 42 20 SKF open CN 28.6
NKIS20-XL nkis 20 42 20 FAG open CN 32.5
PNA20-42 PNA 20 42 20 SKF open CN 19

Needle Roller Thrust Bearings (2)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
AXK2035 AXK 20 35 2 SKF open CN 12
AXW20 AXW 20 38 3.2 SKF open CN 12

Pillow Block Bearings (2)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
UCFL204 UCFL 20 47 31 NTN 2RS — 14.2
UCP204 UCP 20 47 31 NTN 2RS — 14.2

Self-Aligning Ball Bearings (16)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
11204-ETN9 11200 20 47 14 SKF open CN 12.7
1204 1200 20 47 14 NTN open — 10
1204-EKTN9 1200 20 47 14 SKF open CN 12.7
1204-ETN9 1200 20 47 14 SKF open CN 12.7
1204K 1200 20 47 14 NTN open — 10
2204 2200 20 47 18 NTN open — 12.8
2204-E-2RS1TN9 2200 20 47 18 SKF 2RS CN 12.7
2204-ETN9 2200 20 47 18 SKF open CN 16.8
2204K 2200 20 47 18 NTN open — 12.8
1304 1300 20 52 15 NTN open — 12.6
1304-ETN9 1300 20 52 15 SKF open CN 14.3
1304K 1300 20 52 15 NTN open — 12.6
2304 2300 20 52 21 NTN open — 18.5
2304-E-2RS1TN9 2300 20 52 21 SKF 2RS CN 14.3
2304-TN9 2300 20 52 21 SKF open CN 18.2
2304K 2300 20 52 21 NTN open — 18.5

Sensor Bearing Units (2)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
BMO-6204-048S2-UA008A BMO 20 47 14 SKF — — 12.7
BMO-6204-048S2-UA108A BMO 20 47 14 SKF — — 12.7

Support Rollers (30)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
RSTO15 rsto 20 35 11.8 FAG open CN 9.1
RNA2202-2RSR rna22 20 35 13.8 FAG 2RS CN 7.6
STO20 sto 20 47 15.8 FAG open CN 16.1
STO-20 STO 20 47 16 SKF open CN 16.1
NA2204-2RSR na22 20 47 17.8 FAG 2RS CN 14
NA-2204-2RS NA22 20 47 18 SKF open CN 16.1
NATR-20 NATR 20 47 25 SKF open CN 14.7
NATR-20-PPA NATR 20 47 25 SKF open CN 14.7
NATR20 natr 20 47 25 FAG open CN 15.4
NATR20-PP natr 20 47 25 FAG 2RS CN 15.4
NATV-20 NATV 20 47 25 SKF open CN 19.4
NATV-20-PPA NATV 20 47 25 SKF open CN 19.4
NATV20 natv 20 47 25 FAG open CN 20.3
NATV20-PP natv 20 47 25 FAG 2RS CN 20.3
NUTR-20-A NUTR 20 47 25 SKF open CN 28.6
NUTR20 nutr 20 47 25 FAG open CN 28.5
PWTR-20-2RS PWTR 20 47 25 SKF open CN 22.9
PWTR20-2RS-XL pwtr 20 47 25 FAG 2RS CN 24.6
NUKR47 nukr 20 47 66 FAG open CN 28.5
NUKRE47 nukre 20 47 66 FAG open CN 28.5
PWKR47-2RS-XL pwkr 20 47 66 FAG 2RS CN 24.6
PWKRE47-2RS-XL pwkre 20 47 66 FAG 2RS CN 24.6
NUTR-2052-A NUTR 20 52 25 SKF open CN 31.9
NUTR2052 nutr 20 52 25 FAG open CN 31.5
PWTR-2052-2RS PWTR 20 52 25 SKF open CN 25.5
PWTR2052-2RS-XL pwtr 20 52 25 FAG 2RS CN 27
NUKR52 nukr 20 52 66 FAG open CN 29.5
NUKRE52 nukre 20 52 66 FAG open CN 29.5
PWKR52-2RS-XL pwkr 20 52 66 FAG 2RS CN 25.5
PWKRE52-2RS-XL pwkre 20 52 66 FAG 2RS CN 25.5

Tapered Roller Bearings (13)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
32004 32000 20 42 15 FAG open CN 28.5
32004-SKF 32000 20 42 15 SKF open CN 29.7
32004X 32000 20 42 15 NTN open CN 27.6
30204 30200 20 47 15.25 SKF open CN 34.1
30204-NTN 30200 20 47 15.25 NTN open CN 31
32204 32200 20 47 19.25 FAG open CN 40.5
32204-NTN 32200 20 47 19.25 NTN open CN 40.5
07079-07196 4t-inch 20 50.005 13.495 NTN open CN 28.8
30304 30300 20 52 16.25 SKF open CN 41.9
30304A 30300 20 52 16.25 NTN open CN 39
30304CA 30300 20 52 16.25 NTN open CN 34.5
32304 32300 20 52 22.25 SKF open CN 54.3
32304-NTN 32300 20 52 22.25 NTN open CN 51.5

Thrust Ball Bearings (8)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
51104 51100 20 35 10 NTN open CN 14.2
51104-SKF 51100 20 35 10 SKF open CN 15.1
51204 51200 20 40 14 NTN open CN 22.3
51204-SKF 51200 20 40 14 SKF open CN 21.2
53204 53200 20 40 14.7 SKF open CN 21.2
52205 52200 20 47 28 SKF open CN 26.5
52305 52300 20 52 34 SKF open CN 34.5
52406 52400 20 70 52 SKF open CN 70.2

Exact-dimension interchange groups at 20 mm bore

These d×D×B envelopes at a 20 mm bore are shared by several series or brands — the starting point for a dimensional cross reference:

Selecting a 20 mm bore bearing

The bore fixes the shaft, not the bearing capacity. At 20 mm the catalog spans 26–72 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 20 mm bore?

This index lists 337 verified bearing models with a 20 mm (0.787 in) bore across 16 bearing types, from 26 to 72 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.

How do I choose between the 26–72 mm OD options for a 20 mm shaft?

On a fixed 20 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 20 mm bearings?

A 20 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 20 mm is bore code 04 (code × 5), so a 62-series bearing with this bore is the 6204.