Ruland Stainless Steel 33.3mm OD Bellows Coupling with Set Screw Fastening

  • RS Stock No. 174-7214
  • Mfr. Part No. MBS33-8-8-A
  • Manufacturer Ruland
Product overview and Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): US
Product Details

Stainless Steel Bellows Couplings

High torque
Balanced for high rpm
Low inertia
High torsional stiffness
Constant velocity
Long life
Zero backlash
Capable of accommodating angular, parallel and axial misalignment
Maintenance free
Applications include: encoders, tachometers, small servos and high speed applications

Dimensions
Size Code OD (mm) L (mm) L1 (mm)
1 15 25 8.65
2 19 30 10.4
3 25 33 11.85
4 33 40 15.00
5 41 51 18.05
6 51 59 20.55
Size Code Max. Static Torque (Nm) Torsional Stiffness (Nm /Deg ) Max. Axial Offset (mm) Max. Angular Offset (°) Max. Parallel Misalignment (mm)
1 2.50 8 0.20 1.50 0.10
2 4.50 14 0.25 1.50 0.10
3 6.80 27 0.30 1.50 0.10
4 13.60 45 0.40 1.50 0.15
5 28.00 63 0.50 2.00 0.25
6 45.20 108 0.50 2.00 0.25

Ruland MBS33-8-8-A is a bellows coupling with 8mm x 8mm bores, 33.3mm OD, and 42.9mm length. It is zero-backlash and has a balanced design for reduced vibration at high speeds. MBS33-8-8-A is comprised of two anodized aluminum hubs and a stainless steel bellows. The bellows are able to flex while remaining rigid under torsional loads allowing for all types of misalignment to be accommodated. This bellows coupling is lightweight and has low inertia making it suitable for applications with speeds up to 10,000 RPM. Hardware is metric and tests beyond DIN 912 12.9 standards for maximum torque capabilities. Ruland manufactures MBS33-8-8-A to be torsionally rigid and an excellent fit for precise positioning stepper servo applications as well as encoders. It is machined from solid bar stock that is sourced exclusively from North American mills. MBS33-8-8-A is carefully manufactured in our Marlborough, MA factory under strict controls using proprietary processes.

Specifications
Attribute Value
Bore 8mm
Outside Diameter 33.3mm
Length 42.9mm
Fastening Type Set Screw
Torque Rating 13.6Nm
Torsional Stiffness 45°/Nm
Misalignment - Angular 1.5°
Misalignment - Parallel 0.15mm
Misalignment - Axial 0.4mm
Bellows Material Stainless Steel
5 In stock for delivery within 3 working days
Price Each
HK$ 993.00
(exc. GST)
units
Per unit
1 - 4
HK$993.00
5 - 9
HK$963.19
10 +
HK$933.37