Bearings, units and housings -- Bearing units -- Y-bearing units (ball bearing units) -- Y-bearing plummer block units -- Y-bearing plummer block units SKF SYJ 25 KF

SYJ 25 KF

Material

Cast iron

Order adapter sleeve separately

Dimensions

d		20	mm
A		38	mm
A₁		24	mm
B₁		35	mm
H		70	mm
H₁		36.5	mm
H₂		16	mm
J		102.5	mm
J	max.	111	mm
J	min.	94	mm
L		140	mm
N		21.5	mm
N₁		13	mm
s₁		20.5	mm
Values for s1 before the sleeve is driven into the bearing bore (sleeve and inner ring bore at starting position).
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		130	mm
J₇		14	mm
N₄		4	mm

Calculation data

Basic dynamic load rating	C	14	kN
Basic static load rating	C₀	7.8	kN
Fatigue load limit	P_u	0.335	kN
Limiting speed		7000	r/min

Mass

Mass bearing unit

0.89

Mounting information

Appropriate spanner		HN 5-6
Recommended lock nut tightening angle	a	90	°
Recommended diameter for attachment bolts, mm	G	10	mm
Recommended diameter for attachment bolts, inch	G	0.375	in

Appertaining products

Housing			SYJ 505
Bearing			YSA 205-2FK
Adapter sleeve			H 2305

Model Number: SYJ 25 KF
Inner Diameter：20mm Outer Diameter：-mm Width：-mm
Reference speed:7000 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
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Model No. Inner Diameter Outer Diameter Width Type

7010 CD/P4AH
7309 BEGAM
99275
BD-C 2228 K-AHX 3128
NUP 2309 ECP

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Model No.	Inner Diameter	Outer Diameter	Width	Type
7010 CD/P4AH
7309 BEGAM
99275
BD-C 2228 K-AHX 3128
NUP 2309 ECP