W2SS-2Z-227

Dual V guide wheels, size 2, stainless steel, shielded, high temperature lower 500 °F ( 260 °C )

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Display : Metric Inch

WHEEL APPLICATION AND SIZE

	High Temp (SS227)	Wheel application
	2	Size

DIMENSIONS

d	9.525 mm	Bore diameter
D	30.73 mm	Ouside diameter
B	11.11 mm	Width
A₁	12.7 mm	V radius inside
A₂	18.26 mm	V radius outside
A	33.071 mm	Gage wire distance
d_S	3.175 mm	Gage wire diameter
r	0.6 mm	Minimum chamfer
R	0.7 mm	Ref. Radius

LOADD RATINGS

F_r	2200 N	Working radial load capacity
F_a	519 N	Working axial load capacity
C_r	3560 N	Basic dynamic load rating
C₀	2200 N	Basic static load rating

MASS

0.039 kg

Weight

FEATURES AND PERFORMACE

	440C (1.4125)	Ring and ball material
	304 stainless steel	Cage material
	Shielded	Sealing solution
	304 stainless steel	Shield material
	N/A	Seal material
	Krytox GPL227	Grease
	-30ºC to +260ºC	Temperature range ºC
	-22ºF to +500ºF	Temperature range ºF

TOLERANCE AND CLEARANCE

	ABEC-3	Tolerance
	0.010 - 0.022	Radial clearance
	0.02 mm	Radial runout

BWC	MISUMI
W2SS227	BVGHT2

TOLERANCES AND CLEARANCES

Bearing tolerances and clearances

Tolerances: Normal, P6, P5,
Tolerances(inch): Radial normal, Instrument ball bearings
Internal clearance: Single row track rollers, Double row track rollers

ISO CERTIFICATE

ABOUT US

SOCIAL MEDIAS

MOBILE APPS

Inner ring
d		tΔdmp		tVdsp¹⁾			tVdmp¹⁾	tΔBs			tVBs	tKia
				Diameter series				All	Normal	Modified³⁾
>	≤	U	L	7, 8, 9²⁾	0, 1	2, 3, 4		U	L	L
mm		μm		μm			μm	μm			μm	μm

–	2.5	0	–8	10	8	6	6	0	–40	–	12	10
2.5	10	0	–8	10	8	6	6	0	–120	–250	15	10
10	18	0	–8	10	8	6	6	0	–120	–250	20	10

18	30	0	–10	13	10	8	8	0	–120	–250	20	13
30	50	0	–12	15	12	9	9	0	–120	–250	20	15
50	80	0	–15	19	19	11	11	0	–150	–380	25	20

80	120	0	–20	25	25	15	15	0	–200	–380	25	25
120	180	0	–25	31	31	19	19	0	–250	–500	30	30
180	250	0	–30	38	38	23	23	0	–300	–500	30	40

250	315	0	–35	44	44	26	26	0	–350	–500	35	50
315	400	0	–40	50	50	30	30	0	–400	–630	40	60
400	500	0	–45	56	56	34	34	0	–450	–	50	65

500	630	0	–50	63	63	38	38	0	–500	–	60	70
630	800	0	–75	–	–	–	–	0	–750	–	70	80
800	1 000	0	–100	–	–	–	–	0	–1 000	–	80	90

1 000	1 250	0	–125	–	–	–	–	0	–1 250	–	100	100
1 250	1 600	0	–160	–	–	–	–	0	–1 600	–	120	120
1 600	2 000	0	–200	–	–	–	–	0	–2 000	–	140	140

Outer ring

D		tΔDmp		tVDsp⁴⁾				tVDmp⁴⁾	tΔCs, tVCs			tKea
				Open bearings			Capped bearings⁵⁾
				Diameter series			Capped bearings⁵⁾
>	≤	U	L	7, 8, 9²⁾	0, 1	2, 3, 4	2, 3, 4
mm		μm		μm				μm	μm			μm

2.5	18	0	–8	10	8	6	10	6	Identical to tΔBs and tVBs of an inner ring of the same bearing as the outer ring			15
18	30	0	–9	12	9	7	12	7				15
30	50	0	–11	14	11	8	16	8				20

50	80	0	–13	16	13	10	20	10				25
80	120	0	–15	19	19	11	26	11				35
120	150	0	–18	23	23	14	30	14				40

150	180	0	–25	31	31	19	38	19				45
180	250	0	–30	38	38	23	–	23				50
250	315	0	–35	44	44	26	–	26				60

315	400	0	–40	50	50	30	–	30				70
400	500	0	–45	56	56	34	–	34				80
500	630	0	–50	63	63	38	–	38				100

630	800	0	–75	94	94	55	–	55				120
800	1 000	0	–100	125	125	75	–	75				140
1 000	1 250	0	–125	–	–	–	–	–				160

1 250	1 600	0	–160	–	–	–	–	–				190
1 600	2 000	0	–200	–	–	–	–	–				220
2 000	2 500	0	–250	–	–	–	–	–				250

1) Except tapered bore. 2) Diameter series 7 and 8 not covered by ISO 492. 3) Applies to inner rings and outer rings of bearings of matched bearing sets consisting of two or more bearings. Does not apply to universally matchable angular contact ball bearings. 4) Applies to bearings prior to mounting and after removal of internal or external snap ring. 5) Capped bearings are sealed or shielded bearings.

Inner ring
d		tΔdmp¹⁾		tVdsp¹⁾			tVdmp	tΔBs			tVBs	tKia
				Diameter series				All	Normal	Modified³⁾
>	≤	U	L	7, 8, 9²⁾	0, 1	2, 3, 4		U	L	L
mm		μm		μm			μm	μm			μm	μm

–	2.5	0	–7	9	7	5	5	0	–40	–	12	5
2.5	10	0	–7	9	7	5	5	0	–120	–250	15	6
10	18	0	–7	9	7	5	5	0	–120	–250	20	7

18	30	0	–8	10	8	6	6	0	–120	–250	20	8
30	50	0	–10	13	10	8	8	0	–120	–250	20	10
50	80	0	–12	15	15	9	9	0	–150	–380	25	10

80	120	0	–15	19	19	11	11	0	–200	–380	25	13
120	180	0	–18	23	23	14	14	0	–250	–500	30	18
180	250	0	–22	28	28	17	17	0	–300	–500	30	20

250	315	0	–25	31	31	19	19	0	–350	–500	35	25
315	400	0	–30	38	38	23	23	0	–400	–630	40	30
400	500	0	–35	44	44	26	26	0	–450	–	45	35

500	630	0	–40	50	50	30	30	0	–500	–	50	40
630	800	0	–50	–	–	–	–	0	–750	–	60	45
800	1 000	0	–60	–	–	–	–	0	–1 000	–	60	50

1 000	1 250	0	–75	–	–	–	–	0	–1 250	–	70	60
1 250	1 600	0	–90	–	–	–	–	0	–1 600	–	70	70
1 600	2 000	0	–115	–	–	–	–	0	–2 000	–	80	80

Outer ring
D		tΔDmp		tVDsp⁴⁾				VDmp⁴⁾	tΔCs, tVCs			tKea
				Open bearings			Capped bearings⁵⁾
				Diameter series			Capped bearings⁵⁾
>	≤	U	L	7, 8, 9²⁾	0, 1	2, 3, 4	0, 1, 2, 3, 4
mm		μm		μm				μm	μm			μm

2.5	18	0	–7	9	7	5	9	5	Identical to tΔBs and tVBs of an inner ring of the same bearing as the outer ring			8
18	30	0	–8	10	8	6	10	6				9
30	50	0	–9	11	9	7	13	7				10

50	80	0	–11	14	11	8	16	8				13
80	120	0	–13	16	16	10	20	10				18
120	150	0	–15	19	19	11	25	11				20

150	180	0	–18	23	23	14	30	14				23
180	250	0	–20	25	25	15	–	15				25
250	315	0	–25	31	31	19	–	19				30

315	400	0	–28	35	35	21	–	21				35
400	500	0	–33	41	41	25	–	25				40
500	630	0	–38	48	48	29	–	29				50

630	800	0	–45	56	56	34	–	34				60
800	1 000	0	–60	75	75	45	–	45				75
1 000	1 250	0	–75	–	–	–	–	–				85

1 250	1 600	0	–90	–	–	–	–	–				100
1 600	2 000	0	–115	–	–	–	–	–				100
2 000	2 500	0	–135	–	–	–	–	–				120

1) Tolerances for tapered bores (except taper 1:12) 2) Diameter series 7 and 8 not covered by ISO 492. 3) Applies to inner rings and outer rings of bearings of matched bearing sets consisting of two or more bearings. Does not apply to universally matchable angular contact ball bearings. 4) Applies to bearings prior to mounting and after removal of internal or external snap ring. 5) Capped bearings are sealed or shielded bearings.

Inner ring
d		tΔdmp¹⁾		tVdsp¹⁾		tVdmp	tΔBs			tVBs	tKia	tSd	tSia³⁾
				Diameter series			All	Normal	Modified⁴⁾
>	≤	U	L	7, 8, 9²⁾	0, 1, 2, 3, 4		U	L	L
mm		μm		μm		μm	μm			μm	μm	μm	μm

–	2.5	0	–5	5	4	3	0	–40	–250	5	4	7	7
2.5	10	0	–5	5	4	3	0	–40	–250	5	4	7	7
10	18	0	–5	5	4	3	0	–80	–250	5	4	7	7

18	30	0	–6	6	5	3	0	–120	–250	5	4	8	8
30	50	0	–8	8	6	4	0	–120	–250	5	5	8	8
50	80	0	–9	9	7	5	0	–150	–250	6	5	8	8

80	120	0	–10	10	8	5	0	–200	–380	7	6	9	9
120	180	0	–13	13	10	7	0	–250	–380	8	8	10	10
180	250	0	–15	15	12	8	0	–300	–500	10	10	11	13

250	315	0	–18	18	14	9	0	–350	–500	13	13	13	15
315	400	0	–23	23	18	12	0	–400	–630	15	15	15	20
400	500	0	–28	28	21	14	0	–450	–	18	17	18	23

500	630	0	–35	35	26	18	0	–500	–	20	19	20	25
630	800	0	–45	–	–	–	0	–750	–	26	22	26	30
800	1 000	0	–60	–	–	–	0	–1 000	–	32	26	32	30

1 000	1 250	0	–75	–	–	–	0	–1 250	–	38	30	38	30
1 250	1 600	0	–90	–	–	–	0	–1 600	–	45	35	45	30
1 600	2 000	0	–115	–	–	–	0	–2 000	–	55	40	55	30

Outer ring
D		tΔDmp		tVDsp⁵⁾		tVDmp	tΔCs			tVCs	tKea	tSD⁶⁾	tSea³⁾
				Diameter series
>	≤	U	L	7, 8, 9²⁾	0, 1, 2, 3, 4
mm		μm		μm		μm	μm			μm	μm	μm	μm

2.5	18	0	–5	5	4	3	Identical to ΔBs and VBs of an inner ring of the same bearing as the outer ring			5	5	4	8
18	30	0	–6	6	5	3				5	6	4	8
30	50	0	–7	7	5	4				5	7	4	8

50	80	0	–9	9	7	5				6	8	4	10
80	120	0	–10	10	8	5				8	10	4,5	11
120	150	0	–11	11	8	6				8	11	5	13

150	180	0	–13	13	10	7				8	13	5	14
180	250	0	–15	15	11	8				10	15	5,5	15
250	315	0	–18	18	14	9				11	18	6,5	18

315	400	0	–20	20	15	10				13	20	6,5	20
400	500	0	–23	23	17	12				15	23	7,5	23
500	630	0	–28	28	21	14				18	25	9	25

630	800	0	–35	35	26	18				20	30	10	30
800	1 000	0	–50	50	29	25				25	35	12,5	–
1 000	1 250	0	–63	–	–	–				30	40	15	–

1 250	1 600	0	–80	–	–	–				35	45	17,5	–
1 600	2 000	0	–100	–	–	–				38	55	20	–
2 000	2 500	0	–125	–	–	–				45	65	25	–

	1) Tolerances for tapered bores (except taper 1:12 and 1：30). 2) Diameter series 7 and 8 not covered by ISO 492. 3) Applies to inner rings and outer rings of bearings of matched bearing sets consisting of two or more bearings. Does not apply to universally matchable angular contact ball bearings. 4) Applies to bearings prior to mounting and after removal of internal or external snap ring. 5) Capped bearings are sealed or shielded bearings.

Inner ring

d		tΔdmp		tVdsp	tΔBs		tVBs	tKia	tSia
>	≤	U	L		U	L
mm		μm		μm	μm		μm	μm	μm

–	25,4	5	–5	10	0	–127	13	10	15
25,4	50,8	5	–8	10	0	–127	13	10	20
50,8	76,2	5	–8	13	0	–127	13	15	30

76,2	152,4	5	–8	18	0	–127	15	20	38
152,4	203,2	5	–13	33	0	–127	15	25	51
203,2	304,8	5	–13	33	0	–254	20	30	51
304,8	381	5	–20	51	0	–406	25	38	64

Outer ring

D		tΔDmp		tVDsp	tΔCs		tVCs	tKea	tSea
>	≤	U	L
mm		μm		μm	μm		μm	μm	μm

–	25,4	–8	–18	10	Identical to tΔBs of an inner ring of the same bearing as the outer ring		13	10	15
25,4	50,8	–8	–20	10			13	13	15
50,8	76,2	–13	–25	13			13	15	20

76,2	127	–20	–33	18			15	18	30
127	203,2	–33	–46	33			15	20	38
203,2	304,8	–33	–46	33			20	25	51

304,8	381	–33	–58	51			25	30	51
381	508	–33	–58	51			30	38	64

Inner ring and outer ring width

Nominal bore dia.		Single plane mean bore diameter deviation				Single bore diameter deviation				Single plane bore diameter variation		Mean bore diameter variation		Radial runout of assembled bearing inner ring			Axial runout of assembled bearing inner ring			Perpendicularity of inner ring face with respect to the bore			Single inner or outer ring width deviation		Inner or outer ring width variation
d		Δdmp				Δds				Vdsp		Vdmp		Kia			Sia			Sd			ΔBs , ΔCs		VBs ,VCs
		5P, 7P		9P		5P, 7P		9P		5P, 7P	9P	5P, 7P	9P	5P	7P	9P	5P	7P	9P	5P	7P	9P	5P, 7P, 9P		5P	7P	9P
>	≤	U	L	U	L	U	L	U	L	max.		max.		max.			max.			max.			U	L	max.
m		μm
-	10	0	-5.1	0	-2.5	0	-5.1	0	-2.5	2.5	1.3	2.5	1.3	3.8	2.5	1.3	7.6	2.5	1.3	7.6	2.5	1.3	0	-25.4	5.1	2.5	1.3
10	18	0	-5.1	0	-2.5	0	-5.1	0	-2.5	2.5	1.3	2.5	1.3	3.8	2.5	1.3	7.6	2.5	1.3	7.6	2.5	1.3	0	-25.4	5.1	2.5	1.3
18	30	0	-5.1	0	-2.5	0	-5.1	0	-2.5	2.5	1.3	2.5	1.3	3.8	3.8	2.5	7.6	3.8	1.3	7.6	3.8	1.3	0	-25.4	5.1	2.5	1.3

Outer ring

Nominal outside dia.		Single plane mean outside diameter deviation				Single outside diameter deviation						Single plane outside diameter variation			Mean outside diameter variation			Radial runout of assembled bearing outer ring			Axial runout of assembled bearing outer ring			Perpendicularity of outer ring outside surface with respect to the face			Single outer ring flange outside diameter deviation		Single outer ring flange width deviation
D		ΔDmp				ΔDs						VDsp			VDmp			Kea			Sea			SD			ΔD1s		ΔC1s
		5P, 7P		9P		5P, 7P				9P		5P, 7P		9P	5P, 7P		9P	5P	7P	9P	5P	7P	9P	5P	7P	9P	5P, 7P		5P, 7P
						Open type		Shield Seal type		Open type		Open type	Shield Seal type	Open type	Open type	Shield Seal type	Open type
>	≤	U	L	U	L	U	L	U	L	U	L	max.			max.			max.			max.			max.			U	L	U	L
mm		μm
-	18	0	-5.1	0	-2.5	0	-5.1	1	-6.1	0	-2.5	2.5	5.1	1.3	2.5	5.1	1.3	5.1	3.8	1.3	7.6	5.1	1.3	7.6	3.8	1.3	0	-25.4	0	-50.8
18	30	0	-5.1	0	-3.8	0	-5.1	1	-6.1	0	-3.8	2.5	5.1	2	2.5	5.1	2	5.1	3.8	2.5	7.6	5.1	2.5	7.6	3.8	1.3	0	-25.4	0	-50.8
30	50	0	-5.1	0	-3.8	0	-5.1	1	-6.1	0	-3.8	2.5	5.1	2	2.5	5.1	2	5.1	5.1	2.5	7.6	5.1	2.5	7.6	3.8	1.3	0	-25.4	0	-50.8

W2SS-2Z-227

TECHNICAL INFORMATION

INTERCHANGE CODE TABLE

TOLERANCES AND CLEARANCES

C&H BEARING WEBSITE

Bore diameter		Radial internal clearance
d		C2		Normal		C3		C4		C5
>	≤	min.	max.	min.	max.	min.	max.	min.	max.	min.	max.
mm		µm

Stainless steel deep groove ball bearings with a bore diameter < 10 mm

-	9.525	3	8	5	10	8	13	13	20	20	28

All other deep groove ball bearings

2.5	6	0	7	2	13	8	23	–	–	–	–
6	10	0	7	2	13	8	23	14	29	20	37
10	18	0	9	3	18	11	25	18	33	25	45

18	24	0	10	5	20	13	28	20	36	28	48
24	30	1	11	5	20	13	28	23	41	30	53
30	40	1	11	6	20	15	33	28	46	40	64

40	50	1	11	6	23	18	36	30	51	45	73
50	65	1	15	8	28	23	43	38	61	55	90
65	80	1	15	10	30	25	51	46	71	65	105

80	100	1	18	12	36	30	58	53	84	75	120
100	120	2	20	15	41	36	66	61	97	90	140
120	140	2	23	18	48	41	81	71	114	105	160

140	160	2	23	18	53	46	91	81	130	120	180
160	180	2	25	20	61	53	102	91	147	135	200
180	200	2	30	25	71	63	117	107	163	150	230

200	225	2	35	25	85	75	140	125	195	175	265
225	250	2	40	30	95	85	160	145	225	205	300
250	280	2	45	35	105	90	170	155	245	225	340

280	315	2	55	40	115	100	190	175	270	245	370
315	355	3	60	45	125	110	210	195	300	275	410
355	400	3	70	55	145	130	240	225	340	315	460

400	450	3	80	60	170	150	270	250	380	350	520
450	500	3	90	70	190	170	300	280	420	390	570
500	560	10	100	80	210	190	330	310	470	440	630

560	630	10	110	90	230	210	360	340	520	490	700
630	710	20	130	110	260	240	400	380	570	540	780
710	800	20	140	120	290	270	450	430	630	600	860

800	900	20	160	140	320	300	500	480	700	670	960
900	1 000	20	170	150	350	330	550	530	770	740	1 040
1 000	1 120	20	180	160	380	360	600	580	850	820	1 150

1 120	1 250	20	190	170	410	390	650	630	920	890	1 260
1 250	1 400	30	200	190	440	420	700	680	1 000	–	–
1 400	1 600	30	210	210	470	450	750	730	1 060	–	–

Nominal		Axial internal clearance
bore diameter
d		C2		CN		C3		C4
		(Group 2)		(Group N)		(Group 3)		(Group 4)
mm		μm		μm		μm		μm
＞	≤	min.	max.	min.	max.	min.	max.	min.	max.
‒	10	1	11	5	21	12	28	25	45
10	18	1	12	6	23	13	31	27	47
18	24	2	14	7	25	16	34	27	47
24	30	2	15	8	27	18	37	30	50

30	40	2	16	9	29	21	40	33	54
40	50	2	18	11	33	23	44	36	58
50	65	3	22	13	36	26	48	40	63

65	80	3	24	15	40	30	54	46	71
80	100	3	26	18	46	35	63	55	83
100	120	4	30	22	53	42	73	65	96

120	140	4	34	25	59	48	82	74	108