FJ

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Features

・Combineation of aluminum hubs and a polyacetal slider to handle shaft diameters up to φ38.
・High-precision slider groove for light press-fitting and zero backlash, enabling servo operation.
・Sliders can also be made of chemical-resistant or heat-resistant materials.

 fj 01

Configuration and materials

 

fj zumen en

fj hinban en

・Key groove shape complies with new JIS standards.Special key grooves should be shown in separate drawings.
・For d1 and d2,ordera for hole diameters other than the standard values can be made.
・Feel free to consult us about custom orders.
・Combinations of set screw and clamp styles can also be costomized.

Dimensions of key groove shape

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Hole diameter
d1,d2		KbtNominal dimension of keys
bxh
Basic dimen
sion		Tole
rance		Basic dimen
sion		Tole
rance
14-17 5 5 ±0.0150 2.3 +0.1
0		 5x5
17-22 6 6 2.8 6x6
22-30 8 5 ±0.0180 3.3

 +0.2
0		 8x7
30-38 10 10 10x8

Dimensions

Item
No.		D

Standard hole diameters ød1,ød2 H8

d3LL1F

M 

Fastening
torque
(N⋅m)
FJ44  44   14   15   16   18   20   22                         22.5 46 15 7.5 6 7.0
FJ55 55               18   20   22   25   26                 28 57 19 9.5 8 15.0
FJ70 69                       22   25       28   30   35   38 39 77 25 12.5 10 30.0

Specifications

Item

No.

Rated torque

(N⋅m)

Maximum

Rotating speed

(rpm)

Torsional rigidity
(N⋅m/rad)

Allowable parallel

misalignment

(mm)

Allowable angular

misalignment

(°)		Moment of inertia
(kg⋅m2)		Mass
(g)
FJ44 30 12,000 1,500 0.7 1.5 4x10-5 140
FJ55 45 10,000 2,800 1 1.5 11x10-5 260
FJ70 80 8,000 4,800 1.2 1.5 40x10-5

450

・Heat resistance(ambient temperature): -25℃ to 80℃. (rated torque should be 1/2 in 80℃.)

 

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