Bearings, units and housings -- Bearing units -- Y-bearing units (ball bearing units) -- Y-bearing plummer block units -- Y-bearing plummer block units SKF SY 40 WF

SY 40 WF

Material

Cast iron

Dimensions

d		40	mm
A		48	mm
A₁		30	mm
A₅		23.5	mm
B₁		56.3	mm
H		99	mm
H₁		49.2	mm
H₂		19	mm
J		135.5	mm
J	max.	146	mm
J	min.	125	mm
L		175	mm
N		24.5	mm
N₁		14	mm
s₁		34.9	mm
Threaded hole
R_G		1/4-28 UNF
R₁		3.5	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		161	mm
J₇		17	mm
N₄		4	mm

Calculation data

Basic dynamic load rating	C	30.7	kN
Basic static load rating	C₀	19	kN
Fatigue load limit	P_u	0.8	kN
Limiting speed		4800	r/min

(with shaft tolerance h6)

Mass

Mass bearing unit

1.85

Mounting information

Hexagonal key size for grub screw	N	5	mm
Recommended tightening torque for grub screw		16.5	N·m
Recommended diameter for attachment bolts, mm	G	12	mm
Recommended diameter for attachment bolts, inch	G	0.5	in

Appertaining products

Housing			SY 508 M
Bearing			YEL 208-2F

Appropriate products

End cover

ECY 208

Model Number: SY 40 WF
Inner Diameter：40mm Outer Diameter：-mm Width：-mm
Reference speed:4800 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：2025-11-28
Application:chamfering machine etc,agrochemical,security equipment,expectoration machine,small appliances,Plastic Equipment,Low-voltage electrical equipment,joint protection,power protection,Machine Tool Accessories,circulating pump
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