12 mm bore bearings

200 models with a 12 mm (0.472 in) bore across 11 bearing types, outside diameters from 15 to 48 mm. Tables are grouped by type; open a model for full specs and equivalents.

200 models 15–48 mm OD range 5 brands

Angular Contact Ball Bearings (19)

Model	Series	d (mm)	D (mm)	B (mm)	Brand	Seal	Clearance	C (kN)
7001	7000	12	28	8	GENERIC-ISO	open	CN	—
7001-NTN	7000	12	28	8	NTN	open	CN	5.6
7201	7200	12	32	10	SKF	open	CN	7.61
7201-BECBP	7200	12	32	10	SKF	open	CN	7.61
7201-BEP	7200	12	32	10	SKF	open	CN	7.61
7201-NTN	7200	12	32	10	NTN	open	CN	8.4
7201B	7200	12	32	10	NTN	open	CN	7.75
3201-A-2RS1	3200	12	32	15.9	SKF	2RS	CN	10.1
3201-A-2Z	3200	12	32	15.9	SKF	ZZ	CN	10.1
3201-ATN9	3200	12	32	15.9	SKF	open	CN	10.1
5201S	5200S	12	32	15.9	NTN	open	CN	10.5
5201SCLLD	5200S	12	32	15.9	NTN	2RS	CN	8.5
5201SCLLM	5200S	12	32	15.9	NTN	2RS	CN	8.5
5201SCZZ	5200S	12	32	15.9	NTN	ZZ	CN	8.5
7301	7300	12	37	12	SKF	open	CN	10.6
7301-BE-2RZP	7300	12	37	12	SKF	RSR	CN	10.6
7301-BEP	7300	12	37	12	SKF	open	CN	10.6
7301-NTN	7300	12	37	12	NTN	open	CN	12.4
7301B	7300	12	37	12	NTN	open	CN	11.7

Cam Followers (14)

Model	Series	d (mm)	D (mm)	B (mm)	Brand	Seal	Clearance	C (kN)
KR-30-B	KR	12	30	40	SKF	open	CN	6.44
KR-30-PPA	KR	12	30	40	SKF	open	CN	6.44
KR30	kr	12	30	40	FAG	open	CN	6.8
KR30-PP	kr	12	30	40	FAG	2RS	CN	6.8
KRE30-PP	kre	12	30	40	FAG	2RS	CN	6.8
KRV-30-PPA	KR	12	30	40	SKF	open	CN	8.97
KRV30-PP	krv	12	30	40	FAG	2RS	CN	9.4
KR-32-B	KR	12	32	40	SKF	open	CN	6.71
KR-32-PPA	KR	12	32	40	SKF	open	CN	6.71
KR32	kr	12	32	40	FAG	open	CN	7.1
KR32-PP	kr	12	32	40	FAG	2RS	CN	7.1
KRE32-PP	kre	12	32	40	FAG	2RS	CN	7.1
KRV-32-PPA	KR	12	32	40	SKF	open	CN	9.35
KRV32-PP	krv	12	32	40	FAG	2RS	CN	10

Cam Rollers (3)

Model	Series	d (mm)	D (mm)	B (mm)	Brand	Seal	Clearance	C (kN)
361201-R	3612	12	35	10	SKF	2RS	C3	6.24
305701-C-2Z	3057	12	35	15.9	SKF	ZZ	CN	9.04
305801-C-2Z	3058	12	35	15.9	SKF	ZZ	CN	9.04

Deep Groove Ball Bearings (99)

Model	Series	d (mm)	D (mm)	B (mm)	Brand	Seal	Clearance	C (kN)
61801	61800	12	21	5	SKF	open	CN	1.74
61801-2RS	61800	12	21	5	SKF	2RS	CN	1.74
61801-2RS-FAG	61800	12	21	5	FAG	2RS	CN	1.92
61801-2RS-NSK	61800	12	21	5	NSK	2RS	CN	2.11
61801-2RS-NTN	61800	12	21	5	NTN	2RS	CN	2.12
61801-FAG	61800	12	21	5	FAG	open	CN	1.92
61801-NSK	61800	12	21	5	NSK	open	CN	2.11
61801-NTN	61800	12	21	5	NTN	open	CN	2.12
61801-RSR	61800	12	21	5	NSK	RSR	CN	2.11
61801-RSR-NTN	61800	12	21	5	NTN	RSR	CN	2.12
61801-ZZ	61800	12	21	5	SKF	ZZ	CN	1.74
61801-ZZ-FAG	61800	12	21	5	FAG	ZZ	CN	1.92
61801-ZZ-NSK	61800	12	21	5	NSK	ZZ	CN	2.11
61801-ZZ-NTN	61800	12	21	5	NTN	ZZ	CN	2.12
W61801-2RS	61800	12	21	5	SKF	2RS	CN	1.51
W61801-ZZ	61800	12	21	5	SKF	ZZ	CN	1.51
61901	61900	12	24	6	SKF	open	CN	2.91
61901-2RS	61900	12	24	6	SKF	2RS	CN	2.91
61901-2RS-FAG	61900	12	24	6	FAG	2RS	CN	2.89
61901-2RS-NSK	61900	12	24	6	NSK	2RS	CN	3.2
61901-2RS-NTN	61900	12	24	6	NTN	2RS	CN	3.2
61901-FAG	61900	12	24	6	FAG	open	CN	2.89
61901-NSK	61900	12	24	6	NSK	open	CN	3.2
61901-NTN	61900	12	24	6	NTN	open	CN	3.2
61901-RSR	61900	12	24	6	NSK	RSR	CN	3.2
61901-RSR-NTN	61900	12	24	6	NTN	RSR	CN	3.2
61901-ZZ	61900	12	24	6	SKF	ZZ	CN	2.91
61901-ZZ-FAG	61900	12	24	6	FAG	ZZ	CN	2.89
61901-ZZ-NSK	61900	12	24	6	NSK	ZZ	CN	3.2
61901-ZZ-NTN	61900	12	24	6	NTN	ZZ	CN	3.2
W61901	61900	12	24	6	SKF	open	CN	2.51
W61901-2RS	61900	12	24	6	SKF	2RS	CN	2.51
W61901-ZZ	61900	12	24	6	SKF	ZZ	CN	2.51
16001	16000	12	28	7	NTN	open	CN	5.65
6001	6000	12	28	8	SKF	open	CN	5.4
6001-2RS	6000	12	28	8	SKF	2RS	CN	5.4
6001-2RS-FAG	6000	12	28	8	FAG	2RS	CN	5.9
6001-2RS-NSK	6000	12	28	8	NSK	2RS	CN	5.6
6001-2RS-NTN	6000	12	28	8	NTN	2RS	CN	5.65
6001-FAG	6000	12	28	8	FAG	open	CN	5.9
6001-NSK	6000	12	28	8	NSK	open	CN	5.6
6001-NTN	6000	12	28	8	NTN	open	CN	5.65
6001-RSR	6000	12	28	8	SKF	RSR	CN	5.4
6001-RSR-NSK	6000	12	28	8	NSK	RSR	CN	5.6
6001-RSR-NTN	6000	12	28	8	NTN	RSR	CN	5.65
6001-ZZ	6000	12	28	8	SKF	ZZ	CN	5.4
6001-ZZ-FAG	6000	12	28	8	FAG	ZZ	CN	5.9
6001-ZZ-NSK	6000	12	28	8	NSK	ZZ	CN	5.6
6001-ZZ-NTN	6000	12	28	8	NTN	ZZ	CN	5.65
W6001	6000	12	28	8	SKF	open	CN	4.42
W6001-2RS	6000	12	28	8	SKF	2RS	CN	4.42
W6001-ZZ	6000	12	28	8	SKF	ZZ	CN	4.42
63001-2RS	63000	12	28	12	SKF	2RS	CN	5.07
16101	16100	12	30	8	SKF	open	CN	5.07
16101-2RS	16100	12	30	8	SKF	2RS	CN	5.07
16101-ZZ	16100	12	30	8	SKF	ZZ	CN	5.07
6201	6200	12	32	10	SKF	open	CN	7.28
6201-2RS	6200	12	32	10	SKF	2RS	CN	7.28
6201-2RS-FAG	6200	12	32	10	FAG	2RS	CN	8
6201-2RS-NSK	6200	12	32	10	NSK	2RS	CN	7.5
6201-2RS-NTN	6200	12	32	10	NTN	2RS	CN	6.75
6201-FAG	6200	12	32	10	FAG	open	CN	8
6201-NSK	6200	12	32	10	NSK	open	CN	7.5
6201-NTN	6200	12	32	10	NTN	open	CN	6.75
6201-RSR	6200	12	32	10	SKF	RSR	CN	7.28
6201-RSR-NSK	6200	12	32	10	NSK	RSR	CN	7.5
6201-RSR-NTN	6200	12	32	10	NTN	RSR	CN	6.75
6201-ZZ	6200	12	32	10	SKF	ZZ	CN	7.28
6201-ZZ-FAG	6200	12	32	10	FAG	ZZ	CN	8
6201-ZZ-NSK	6200	12	32	10	NSK	ZZ	CN	7.5
6201-ZZ-NTN	6200	12	32	10	NTN	ZZ	CN	6.75
W6201	6200	12	32	10	SKF	open	CN	5.72
W6201-2RS	6200	12	32	10	SKF	2RS	CN	5.72
W6201-ZZ	6200	12	32	10	SKF	ZZ	CN	5.72
4201-ATN9	4200	12	32	14	SKF	open	CN	10.6
62201-2RS	62200	12	32	14	SKF	2RS	CN	6.89
6301	6300	12	37	12	SKF	open	CN	10.1
6301-2RS	6300	12	37	12	SKF	2RS	CN	10.1
6301-2RS-FAG	6300	12	37	12	FAG	2RS	CN	11.5
6301-2RS-NSK	6300	12	37	12	NSK	2RS	CN	10.7
6301-2RS-NTN	6300	12	37	12	NTN	2RS	CN	10.8
6301-FAG	6300	12	37	12	FAG	open	CN	11.5
6301-NSK	6300	12	37	12	NSK	open	CN	10.7
6301-NTN	6300	12	37	12	NTN	open	CN	10.8
6301-RSR	6300	12	37	12	SKF	RSR	CN	10.1
6301-RSR-NSK	6300	12	37	12	NSK	RSR	CN	10.7
6301-RSR-NTN	6300	12	37	12	NTN	RSR	CN	10.8
6301-ZZ	6300	12	37	12	SKF	ZZ	CN	10.1
6301-ZZ-FAG	6300	12	37	12	FAG	ZZ	CN	11.5
6301-ZZ-NSK	6300	12	37	12	NSK	ZZ	CN	10.7
6301-ZZ-NTN	6300	12	37	12	NTN	ZZ	CN	10.8
W6301	6300	12	37	12	SKF	open	CN	8.32
W6301-2RS	6300	12	37	12	SKF	2RS	CN	8.32
W6301-ZZ	6300	12	37	12	SKF	ZZ	CN	8.32
4301-ATN9	4300	12	37	17	SKF	open	CN	13
62301-2RS	62300	12	37	17	SKF	2RS	CN	9.75
6401	6400	12	48	14	GENERIC-ISO	open	CN	—
6401-2RS	6400	12	48	14	GENERIC-ISO	2RS	CN	—
6401-ZZ	6400	12	48	14	GENERIC-ISO	ZZ	CN	—

Insert Bearings (Y-bearings) (1)

Model	Series	d (mm)	D (mm)	B (mm)	Brand	Seal	Clearance	C (kN)
YAR-203-12-2F	YAR2	12	40	27.4	SKF	2RS	CN	9.56

Needle Roller Bearings (33)

Model	Series	d (mm)	D (mm)	B (mm)	Brand	Seal	Clearance	C (kN)
K12X15X10-TN	K	12	15	10	SKF	open	CN	4.73
K12X15X13-TN	K	12	15	13	SKF	open	CN	6.16
HK1210	HK	12	16	10	SKF	open	CN	4.84
HK1210FM	HK	12	16	10	NTN	open	—	5.05
K12X16X13-TN	K	12	16	13	SKF	open	CN	7.65
K12X17X13-TN	K	12	17	13	SKF	open	CN	9.13
HK1212	HK	12	18	12	SKF	open	CN	6.27
HK1212FM	HK	12	18	12	NTN	open	—	6.6
K12X18X12-TN	K	12	18	12	SKF	open	CN	9.52
HK1216-2RS	HK	12	18	16	SKF	2RS	CN	6.27
NK12-12	NK	12	19	12	SKF	open	CN	6.71
NK12-12-XL	nk	12	19	12	FAG	open	CN	7.2
NK12-16	NK	12	19	16	SKF	open	CN	9.13
NK12-16-XL	nk	12	19	16	FAG	open	CN	10.1
NX12	NX	12	21	18	SKF	open	CN	5.39
NX12-Z	NX	12	21	18	SKF	open	CN	5.39
NKX12	NKX	12	21	23	SKF	open	CN	9.13
NKX12-Z	NKX	12	21	23	SKF	open	CN	9.13
RNAO12X22X12-TV-XL	rnao	12	22	12	FAG	open	CN	11.3
NA4901	NA-49	12	24	13	SKF	open	CN	9.9
NA4901-XL	na49	12	24	13	FAG	open	CN	10.6
NAO12X24X13-XL	nao	12	24	13	FAG	open	CN	10.1
NA4901-2RS	NA-49	12	24	14	SKF	2RS	CN	8.09
NKI12-16	NKI	12	24	16	SKF	open	CN	11.7
NKI12-16-XL	nki	12	24	16	FAG	open	CN	12.8
NKIA5901	NKIA	12	24	16	SKF	open	CN	8.09
NKIB5901	NKIB	12	24	17.5	SKF	open	CN	8.09
NKI12-20	NKI	12	24	20	SKF	open	CN	14.5
NKI12-20-XL	nki	12	24	20	FAG	open	CN	16.3
NA6901	NA-69	12	24	22	SKF	open	CN	16.1
NA6901-XL	na69	12	24	22	FAG	open	CN	18.1
NAO12X28X12-IS1-XL	nao	12	28	12	FAG	open	CN	13
PNA12-28	PNA	12	28	12	SKF	open	CN	7.37

Needle Roller Thrust Bearings (2)

Model	Series	d (mm)	D (mm)	B (mm)	Brand	Seal	Clearance	C (kN)
AXK1226	AXK	12	26	2	SKF	open	CN	9.15
AXW12	AXW	12	29	3.2	SKF	open	CN	9.15

Pillow Block Bearings (2)

Model	Series	d (mm)	D (mm)	B (mm)	Brand	Seal	Clearance	C (kN)
UCFL201	UCFL	12	32	31	NTN	2RS	—	14.2
UCP201	UCP	12	32	31	NTN	2RS	—	14.2

Self-Aligning Ball Bearings (8)

Model	Series	d (mm)	D (mm)	B (mm)	Brand	Seal	Clearance	C (kN)
1201	1200	12	32	10	NTN	open	—	5.7
1201-ETN9	1200	12	32	10	SKF	open	CN	6.24
2201	2200	12	32	14	NTN	open	—	7.75
2201-E-2RS1TN9	2200	12	32	14	SKF	2RS	CN	6.24
2201-ETN9	2200	12	32	14	SKF	open	CN	8.52
1301	1300	12	37	12	NTN	open	—	9.65
1301-ETN9	1300	12	37	12	SKF	open	CN	9.36
2301	2300	12	37	17	NTN	open	—	12.1

Support Rollers (14)

Model	Series	d (mm)	D (mm)	B (mm)	Brand	Seal	Clearance	C (kN)
RSTO8-TV	rsto	12	24	9.8	FAG	open	CN	4.2
RNA22-8-2RSR	rna22	12	24	11.8	FAG	2RS	CN	4.8
STO12	sto	12	32	11.8	FAG	open	CN	9
STO-12	STO	12	32	12	SKF	open	CN	8.8
NA2201-2RSR	na22	12	32	13.8	FAG	2RS	CN	7.5
NA-2201-2RS	NA22	12	32	14	SKF	open	CN	7.04
NATR-12	NATR	12	32	15	SKF	open	CN	6.6
NATR-12-PPA	NATR	12	32	15	SKF	open	CN	6.6
NATR12	natr	12	32	15	FAG	open	CN	7
NATR12-PP	natr	12	32	15	FAG	2RS	CN	7
NATV-12	NATV	12	32	15	SKF	open	CN	9.35
NATV-12-PPA	NATV	12	32	15	SKF	open	CN	9.35
NATV12	natv	12	32	15	FAG	open	CN	9.7
NATV12-PP	natv	12	32	15	FAG	2RS	CN	9.7

Thrust Ball Bearings (5)

Model	Series	d (mm)	D (mm)	B (mm)	Brand	Seal	Clearance	C (kN)
51101	51100	12	26	9	NTN	open	CN	10.3
51101-SKF	51100	12	26	9	SKF	open	CN	10.4
51201	51200	12	28	11	NTN	open	CN	13.2
51201-SKF	51200	12	28	11	SKF	open	CN	13.3
53201	53200	12	28	11.4	SKF	open	CN	13.3

Exact-dimension interchange groups at 12 mm bore

These d×D×B envelopes at a 12 mm bore are shared by several series or brands — the starting point for a dimensional cross reference:

Selecting a 12 mm bore bearing

The bore fixes the shaft, not the bearing capacity. At 12 mm the catalog spans 15–48 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 j5 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 12 mm bore?

This index lists 200 verified bearing models with a 12 mm (0.472 in) bore across 11 bearing types, from 15 to 48 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.

How do I choose between the 15–48 mm OD options for a 12 mm shaft?

On a fixed 12 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 12 mm bearings?

A 12 mm bore on a rotating inner ring normally uses a j5 shaft seat with an H7 housing bore (verify against the catalogue for heavy or stationary-ring duty). Bore diameters below 20 mm follow the 10/12/15/17 mm exception table rather than code × 5.

12 mm bore bearings

Angular Contact Ball Bearings (19)

Cam Followers (14)

Cam Rollers (3)

Deep Groove Ball Bearings (99)

Insert Bearings (Y-bearings) (1)

Needle Roller Bearings (33)

Needle Roller Thrust Bearings (2)

Pillow Block Bearings (2)

Self-Aligning Ball Bearings (8)

Support Rollers (14)

Thrust Ball Bearings (5)

Exact-dimension interchange groups at 12 mm bore

12×18×12 mm →

12×21×5 mm →

12×24×6 mm →

12×24×13 mm →

12×24×16 mm →

12×28×8 mm →

12×28×12 mm →

12×30×8 mm →

12×30×40 mm →

12×32×10 mm →

12×32×14 mm →

12×32×15 mm →

12×32×15.9 mm →

12×32×40 mm →

12×37×12 mm →

12×37×17 mm →

12×48×14 mm →

Selecting a 12 mm bore bearing

Frequently asked questions