Bearings, units and housings -- Bearing units -- Y-bearing units (ball bearing units) -- Y-bearing plummer block units -- Y-bearing plummer block units SKF SY 55 WF

SY 55 WF

Material

Cast iron

Dimensions

d		55	mm
A		60	mm
A₁		40	mm
A₅		34	mm
B₁		71.4	mm
H		126	mm
H₁		63.5	mm
H₂		24	mm
J		171.5	mm
J	max.	181	mm
J	min.	162	mm
L		219	mm
N		27.5	mm
N₁		18	mm
s₁		43.6	mm
Threaded hole
R_G		1/4-28 UNF
R₁		4.5	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		201	mm
J₇		21	mm
N₄		4	mm

Calculation data

Basic dynamic load rating	C	43.6	kN
Basic static load rating	C₀	29	kN
Fatigue load limit	P_u	1.25	kN
Limiting speed		3600	r/min

(with shaft tolerance h6)

Mass

Mass bearing unit

3.55

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	16	mm
Recommended diameter for attachment bolts, inch	G	0.625	in

Appertaining products

Housing			SY 511 M
Bearing			YEL 211-2F

Appropriate products

End cover

ECY 211

Model Number: SY 55 WF
Inner Diameter：55mm Outer Diameter：-mm Width：-mm
Reference speed:3600 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：2026-08-20
Application:linear drive,comprehensive experiment,food testing,security,industrial skin care,chemical instruments,manual Tools,shoe-making machinery,ventilation fans,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,embroidery cloth
Similar models:BTW 55 CTN9/SP IR 50x55x35 BC2B 320055 A NAO 40x55x17 PBM 455580 M1G1 PBMF 9511550 M1G1 PCM 040510 E/VB055 25580/25520 PRM 505550 FY 55 TF/VA228
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Model No. Inner Diameter Outer Diameter Width Type

21121
21316 EK
408703
48x72x8 HMS5 V
PSM 354525 A51

Purchase the SKF SY 55 WF Y-bearing plummer block units Please fill in the following

Hot number： 206 36740 528272 6001-Z GEC 360 FBAS NJG 2309 VH RNA 4910 RS PFD 20 RM PRM 303440 PSM 061212 A51 S71919 ACD/HCP4A SAF 22340 SAF 22618 x 3.1/8 T SAFS 22518 TLC SY 1.15/16 TF/VA201

Model No.	Inner Diameter	Outer Diameter	Width	Type
21121
21316 EK
408703
48x72x8 HMS5 V
PSM 354525 A51