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Zero backlash elastomer couplings
70-4

Zero backlash elastomer couplings

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Item description/product images

DescriptionMaterial:Coupling hub stainless steel 1.4305.
Coupling spider polyurethane Shore 98-A.
Clamping screws stainless steel A2-70.
Note:The radial clamping hub allows for a considerably shorter assembly time.
The coupling can be mounted completely assembled or in unassembled condition.
A light oil film on the insert minimizes the assembly force required.
The required torque for the screws must be adhered to.
Assembly:The fit shaft to bore should be a transition fit.
The clearance should be min. 0.01 mm and max. 0.03 mm i.e.
Shaft Ø28 j6
Bore Ø28 H7
Diameters smaller than Dmin are possible, however, a sure transfer of the coupling torque is no longer guaranteed.
On request:List required hub bore D1 and D2 with limits or fits separately.
DownloadHere is all the information as a PDF datasheet:

Are you looking for CAD data? These can be found directly in the product table.
 Datasheet 70-4 Zero backlash elastomer couplings 162 kB
 NovoNox_2013_Couplings_EN 66,1 kB

Drawings

Zero backlash elastomer couplings

Item selection/filter

Order No.

SizeD1/D2
predrilled
D1/D2
max.
LL1L2L3DAHC
(DIN 912)
Tightening
torque
max. Nm
CADAcc.PriceOrder
70-4-11101435111353010,534M42,0 103.50 €
70-4-2210206625166401545M53,7 109.50 €
70-4-33202878301810552057M66,4 142.50 €
70-4-44243590352011652470M815,3 192.00 €
70-4-553244114452413803089M1031 283.50 €
Order No.

SizeNominal
torque
Nm
Moment of inertia
(10⁻⁶ kgm²)
Static
torsion spring
torque (Nm/rad)
Max.
axial shaft
displacement ±
Max.
lateral shaft
displacement
Max.
angular shaft
displacement
Radial spring
stiffness
N/mm
max.
speed
U/min
CADAcc.PriceOrder
70-4-1112,50,017172+1/-0,50,090,9°65413.000 103.50 €
70-4-22170,104860+1,2/-0,50,060,9°2.01010.000 109.50 €
70-4-33600,4352.060+1,4/-0,50,100,9°2.5607.000 142.50 €
70-4-441600,9573.440+1,5/-0,70,110,9°3.2006.000 192.00 €
70-4-553253,0167.160+1,8/-0,70,120,9°4.4005.000 283.50 €
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