This item is Discontinued.

Ruland Set Screw Bellows Cplg, Bores 8x7mm, OD 25.4mm, L 33.3mm, Aluminum MBS25-8-7-A

Set Screw Bellows Cplg, Bores 8x7mm, OD 25.4mm, L 33.3mm, Aluminum (Discontinued)

  • Mfr # MBS25-8-7-A
  • Zoro # G3422626
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Specifications

Product Information

MFR #
MBS25-8-7-A
Zoro #
G3422626
UPC #
634529235485
Country of Origin
United States

Dimensions

Bore Dia.
8 mm x 7 mm
Outside Dia.
25.4 mm
Overall Length
33.3 mm
Length
33.3 mm
Fastening Dimensions
Metric
Set Screw Size
M4

Details

Max. RPM
10000 RPM
Style
Set Screw
Torsional Stiffness (Deg./In.-Lbs.)
27 Nm/Deg
Material
Anodized Aluminum
Max. Temp. Range (F)
-40°F to 200°F (-40°C to 93°C)
Max. Parallel Misalignment (In.)
0.10 mm
Max. Angular Misalignment
1.5 deg
Weight
0.0751 lbs
Screw Material
Alloy Steel
Static Torque
6.8 Nm
Dynamic Torque Non-Reversing
3.40 Nm
Number of Screws
4 ea
Dynamic Torque Reversing
1.70 Nm
Bore Tolerance
+0.03 mm / -0.00 mm
Axial Motion
0.30 mm
Screw Seating Torque
2.2 Nm
Screw Finish
Black Oxide
B1 Shaft Penetration
15.9 mm
B2 Shaft Penetration
15.9 mm
Measurement Type
Metric

Description

Ruland standard length bellows couplings are a high torque zero-backlash coupling commonly found in responsive systems on semiconductor, solar, test and measurement, and printing equipment. This set screw type bellows coupling consists of two anodized aluminum hubs and a stainless steel bellows creating a lightweight low inertia coupling. It has 8mm x 7mm bores, 25.4mm OD, and 33.3mm length. This coupling has a four convolution bellows for higher torque and torsional stiffness capabilities than equivalent couplings with more convolutions. The bellows are able to flex while remaining rigid under torsional loads allowing for all types of misalignment to be accommodated. Hardware is metric and tests beyond DIN 912 12.9 standards. This bellows coupling has a balanced design for reduced vibration at high speeds of up to 10,000 RPM. It is RoHS and REACH compliant.

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