Bearings, units and housings -- Bearing units -- Y-bearing units (ball bearing units) -- Y-bearing flanged units -- Y-bearing square flanged units SKF FYJ 45 KF

FYJ 45 KF

Order adapter sleeve separately
Housing material			Cast iron

Dimensions

d		40	mm
A		38	mm
A₁		16	mm
A₃	H14	3.2	mm
B₁		50	mm
D_a	H11	119.1	mm
D_b1		107	mm
D_b2		108	mm
J		105	mm
L		137	mm
N		16	mm
s₁	≈	29	mm
T		50	mm
Value 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		22	mm
Grease fitting
D_N		6.5	mm
SW_N		7	mm
G_N		1/4-28 SAE-LT
Dowel pins
J₆		123	mm
J₇		33.5	mm
N₄		4	mm

Calculation data

Basic dynamic load rating	C	33.2	kN
Basic static load rating	C₀	21.6	kN
Fatigue load limit	P_u	0.915	kN
Limiting speed		4300	r/min

Mass

Mass bearing unit

2.2

Mounting information

Appropriate spanner		HN 8-9
Recommended lock nut tightening angle	a	110	°
Recommended diameter for attachment bolts, mm	G	14	mm
Recommended diameter for attachment bolts, inch	G	0.5625	in

Appertaining products

Housing			FYJ 509
Bearing			YSA 209-2FK
Adapter sleeve			H 2309

Model Number: FYJ 45 KF
Inner Diameter：40mm Outer Diameter：-mm Width：-mm
Reference speed:4300 r/min Limiting speed:-
Type：Bearings, units and housings Bearing units Y-bearing units (ball bearing units) Y-bearing flanged units
Details： Y-bearing flanged units Y-bearing square flanged units
Update date：2026-06-25
Application:diving equipment,small appliances,roller lathe,welding equipment,Hydraulic Rama,electromyography machine,orthodontic material,Insect Count,Storage Tool,Industrial,transistor fittings
Similar models:LR 40x45x20.5 JL 69345/310 PF 45 WF PBM 455545 M1G1 HM 518445/410 IR 60x68x45 NAO 30x45x26 JLM 104945/910 IR 65x72x45 FY 45 LDW
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Model No. Inner Diameter Outer Diameter Width Type

400450
81284 M
H 3130
HA 316
LL 575349/310

Purchase the SKF FYJ 45 KF Y-bearing square flanged units Please fill in the following

Hot number： 402004 81138 M AOH 24180 TQO design C 4028 K30V NNCL 4968 CV NUP 211 ECML OKC 740 P 85 R-40 RM PBM 170190100 M1G1 PCZ 0612 E SAF 22515 x 2.1/2 TLC SALKB 18 F SYK 25 WD SYNT 45 LW

Model No.	Inner Diameter	Outer Diameter	Width	Type
400450
81284 M
H 3130
HA 316
LL 575349/310