Bellow couplings / grub screw clamping / bellows: stainless steel, TOMBAK / body: aluminium / MK1 / R+W ANTRIEBSELEMENTE

Bellow couplings / grub screw clamping / bellows: stainless steel, TOMBAK / body: aluminium / MK1 / R+W ANTRIEBSELEMENTE

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Design
· Two hubs with radial set screws concentrically mounted to flexible bellows
· Speeds up to 20,000 rpm; over 20,000 with finely balanced version

Material
· Bellows:
from series 0,5 – tombac
from series 1 – high grade stainless steel
· Hubs: aluminum

Temperature range
· -30 °C to +100 °C (-22 °F to +212 °F)

Features
· Integrated dismounting groove
· Low-cost design
· Low moment of inertia

Part Number

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the corresponding part number is displayed here.

MK1 with Radial Set Screws 0.05 - 10 Nm

Product Properties

 

Features

• integral dismounting groove eliminates the need for flats on shafts
• economical design
• larger bore diameters in a small size possible

Material

Bellows: size 0.5 tombac; sizes 1 and up high grade stainless steel
Hubs: aluminium

Design

Two hubs with radial set screws concentrically mounted to flexible bellows. Speeds up to 20,000 rpm; over 20,000 with finely balanced version.

Advantage


Bore diameters above 4mm have an integral dismounting groove, which provides clearance over any burr which may be kicked up by the set screw, eliminating the need for flats on shafts.

Drawing

Drawing

SIZE  0.51510152045100
Rated torque(Nm)TKN0.050.10.51.01.52.04.510
Overall length(mm)A-11420202326222528242926313537454353
Outside diameter(mm)B6.510151519253240
Fit length(mm)C456.56.57.5111315
Inside diameter possible
from Ø to Ø H7
(mm)D1/21-31-53-93-93-123-166-226-28
Clamping screw ISO 4029 E1xM21xM2.51xM31xM32xM32xM42xM52xM6
Tightening torque of the fastening screw(Nm)0.350.751.31.31.32.546
Distance(mm)G1.51.82222.53.54
Moment of inertia(gcm2)Jges.0.10.41.11.21.31.31.824.75.51518206570180220
Approximate weight(g) 1566667812142224265458106114
Torsional stiffness(Nm/rad)CT50702802101705103803207507001200130012007000500090508800
Axial(mm)Max. values0.40.40.40.50.60.40.50.60.50.70.50.60.70.7111.2
Lateral(mm)0.10.150.150.20.250.150.20.250.150.20.150.20.250.20.250.20.3
Angular(degree)1111.5211.521.51.51.51.521.521.52
 

Ordering Example

Ordering ExampleMK15264.765XX
Model    Special designation only
(e.g. high speed balancing).
Size    
Overall length mm    
Bore D1 H7    
Bore D2 H7    
For custom features place an XX at the end of the part number and describe the special requirements (e.g. MK1 / 5 / 26 / 4.76 / 5 / XX; XX=finely balanced for 25,000 rpm)
Part Number
MK1/15/24/[3-12/1]/[3-12/1]
MK1/15/29/[3-12/1]/[3-12/1]
MK1/20/26/[3-16/1]/[3-16/1]
MK1/20/31/[3-16/1]/[3-16/1]
MK1/20/35/[3-16/1]/[3-16/1]
Part NumberMinimum order quantityVolume Discount
Standard
Shipping Days
?
Allowable Torque Range
(N•m)
Shaft Bore Dia. (machined) D1
(mm)
Shaft Bore Dia. (machined) D2
(mm)
Outer Dia. A
(mm)
Overall Length W
(mm)
Allowable Torque
(Nm)
Allowable Lateral Misalignment
(mm)
Allowable Angular Misalignment
(deg)
Bellows Part Material Allowable Axial Clearance (±)
(mm)
Moment of Inertia
(kg・m2)
1 17 Days 1.01 to 3.003 ~ 123 ~ 1219241.30.151.5Stainless Steel0.50.0047
1 17 Days 1.01 to 3.003 ~ 123 ~ 1219291.30.21.5Stainless Steel0.70.0055
1 17 Days 1.01 to 3.003 ~ 163 ~ 1625262.50.151.5Stainless Steel0.50.015
1 17 Days 1.01 to 3.003 ~ 163 ~ 1625312.50.21.5Stainless Steel0.60.018
1 17 Days 1.01 to 3.003 ~ 163 ~ 1625352.50.252Stainless Steel0.70.02

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Basic information

Type Bellows Type Body Material Aluminum

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