Bearings, units and housings -- Bearing units -- Y-bearing units (ball bearing units) -- Y-bearing plummer block units -- Y-bearing plummer block units SKF SY 2.1/4 TF

SY 2.1/4 TF

Material

Cast iron

Dimensions

d		57.15	mm
A		60	mm
A₁		42	mm
A₅		39	mm
B		65.1	mm
H		137.5	mm
H₁		69.9	mm
H₂		26.5	mm
J		190.5	mm
J	max.	202	mm
J	min.	179	mm
L		240	mm
N		29.5	mm
N₁		18	mm
s₁		39.7	mm
Threaded hole
R_G		1/4-28 UNF
R₁		5.5	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		222	mm
J₇		21	mm
N₄		4	mm

Calculation data

Basic dynamic load rating	C	52.7	kN
Basic static load rating	C₀	36	kN
Fatigue load limit	P_u	1.53	kN
Limiting speed		3400	r/min

(with shaft tolerance h6)

Mass

Mass bearing unit

4.55

Mounting information

Hexagonal key size for grub screw	N	4.763	mm
Recommended tightening torque for grub screw		16.5	N·m
Recommended diameter for attachment bolts, mm	G	16	mm
Recommended diameter for attachment bolts, inch	G	0.625	in

Appertaining products

Housing			SY 512 M
Bearing			YAR 212-204-2F

Appropriate products

End cover

ECY 212

Model Number: SY 2.1/4 TF
Inner Diameter：57.15mm Outer Diameter：-mm Width：-mm
Reference speed:3400 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：2024-12-13
Application:milling head plug,forming machine,marine analysis,plastic molding,fabric products,medical equipment,baler,aerial work platform,leather processing,tire industry,chemical instruments
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