Bearings, units and housings -- Bearing units -- Y-bearing units (ball bearing units) -- Y-bearing plummer block units -- Y-bearing plummer block units SKF SY 1/2 FM

SY 1/2 FM

Material

Cast iron

Dimensions

d		12.7	mm
A		32	mm
A₁		18	mm
B₁		28.6	mm
H		57	mm
H₁		30.2	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		22.1	mm
Threaded hole
R_G		1/4-28 UNF
R₁		1	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	9.56	kN
Basic static load rating	C₀	4.75	kN
Fatigue load limit	P_u	0.2	kN
Limiting speed		9500	r/min

(with shaft tolerance h6)

Mass

Mass bearing unit

0.52

Mounting information

Hexagonal key size for grub screw	N	3.175	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 503 M
Bearing			YET 203-008

Model Number: SY 1/2 FM
Inner Diameter：12.7mm Outer Diameter：-mm Width：-mm
Reference speed:9500 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：2026-04-16
Application:Dental Drill etc,leather processing,electromyography machine,comprehensive experiment,chemical raw materials and reagents,Hairbrush device,wire industry,Switch,medical equipment,preservation equipment,Broadcasting System
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