This item is Discontinued.

Ruland Keyed Set Screw Bellows Cplg, Bores 11x8mm, OD 25.4mm, L 33.3mm, Alum MBSK25-11-8-A

This item is Discontinued.

Ruland

Keyed Set Screw Bellows Cplg, Bores 11x8mm, OD 25.4mm, L 33.3mm, Alum (Discontinued)

Mfr # MBSK25-11-8-A
Zoro # G3415678
UPC # 634529295977
Country of Origin United States
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Specifications

Product Information

MFR #
MBSK25-11-8-A
Zoro #
G3415678
UPC #
634529295977
Country of Origin
United States

Dimensions

Bore Dia.
11 mm x 8 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
Material
Anodized Aluminum
Max. Parallel Misalignment (In.)
0.10 mm
Max. Temp. Range (F)
-40°F to 200°F (-40°C to 93°C)
Max. Angular Misalignment
1.5 deg
Style
Set Screw with Keyway
Torsional Stiffness (Deg./In.-Lbs.)
27 Nm/Deg
Weight
0.0705 lbs
Dynamic Torque Non-Reversing
3.40 Nm
Keyway (K2)
2 mm
Screw Seating Torque
2.2 Nm
Keyway (K1)
4 mm
Number of Screws
4 ea
Static Torque
6.8 Nm
Bore Tolerance
+0.03 mm / -0.00 mm
B1 Shaft Penetration
15.9 mm
Axial Motion
0.30 mm
Dynamic Torque Reversing
1.70 Nm
B2 Shaft Penetration
15.9 mm
Measurement Type
Metric
Screw Finish
Black Oxide
Screw Material
Alloy Steel

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 keyed set screw type bellows coupling consists of two anodized aluminum hubs and a stainless steel bellows creating a lightweight low inertia coupling. The addition of keyways allows for increased torque capacity and prevents the coupling from slipping on the shaft when over torqued. It has 11mm x 8mm bores, 4mm x 2mm keyways, 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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