Bearings, units and housings -- Bearing units -- Y-bearing units (ball bearing units) -- Y-bearing plummer block units -- Y-bearing plummer block units SKF SY 20 WF

SY 20 WF

Material

Cast iron

Dimensions

d		20	mm
A		32	mm
A₁		21	mm
A₅		18.5	mm
B₁		43.7	mm
H		64.5	mm
H₁		33.3	mm
H₂		14	mm
J		97	mm
J	max.	106	mm
J	min.	88	mm
L		127	mm
N		20.5	mm
N₁		11.5	mm
s₁		26.6	mm
Threaded hole
R_G		1/4-28 UNF
R₁		2	mm
R_a		45	°
Grease fitting
D_N		6.5	mm
SW_N		7	mm
G_N		1/4-28 SAE-LT
Dowel pins
J₆		118	mm
J₇		11.5	mm
N₄		2	mm

Calculation data

Basic dynamic load rating	C	12.7	kN
Basic static load rating	C₀	6.55	kN
Fatigue load limit	P_u	0.28	kN
Limiting speed		8500	r/min

(with shaft tolerance h6)

Mass

Mass bearing unit

0.6

Mounting information

Hexagonal key size for grub screw	N	3	mm
Recommended tightening torque for grub screw		4	N·m
Recommended diameter for attachment bolts, mm	G	10	mm
Recommended diameter for attachment bolts, inch	G	0.375	in

Appertaining products

Housing			SY 504 M
Bearing			YEL 204-2F

Appropriate products

End cover

ECY 204

Model Number: SY 20 WF
Inner Diameter：20mm Outer Diameter：-mm Width：-mm
Reference speed:8500 r/min Limiting speed:-
Type：Bearings, units and housings Bearing units Y-bearing units (ball bearing units) Y-bearing plummer block units
Details： Y-bearing plummer block units Y-bearing plummer block units
Update date：2025-12-09
Application:EEG,cleaning agent,dye pigments,mathematical instruments,Reflective Materials Industrial fabrics,outdoor equipment,forklift truck,Garment Accessories,reducer,education model Instruments,miscellaneous instruments
Similar models:NUP 2320 ECJ GS 81207 SSAFS 22520 x 3.3/8 C 2209 V 2200 E-2RS1TN9 NU 30/1120 ECMA 6305-2Z/VA201 SIL 20 ES 71920 CD/HCP4AL 6202-2ZNR
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Model No.	Inner Diameter	Outer Diameter	Width	Type
1900562	482.6	533.4	22.23	Seals
406103	592	-	-	Seals
407003	680	-	-	Seals
609/1000 MB	1000	1320	103	Bearings, units and housings
FSAF 22517 x 3 TLC	76.2	-	-	Bearings, units and housings
HA 2311	49.2125	55	59	Bearings, units and housings
KMT 19	32	-	95	Bearings, units and housings
KR 26 XB	-	26	36	Bearings, units and housings
NKIB 5904	20	37	25	Bearings, units and housings
RSTO 25	30	52	15.8	Bearings, units and housings
SY 2.3/4 UTF	69.85	-	-	Bearings, units and housings
YAT 207	35	72	33	Bearings, units and housings

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