Keyed Clamp Bellows Cplg, Bores 8x7mm, OD 25.4mm, L 33.3mm, Alum

  • Mfr # MBCK25-8-7-A

  • Zoro # G3423929


product price:  $114.99
/ea
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Key Features

Bore Dia.
8 mm x 7 mm
Max. RPM
10000 RPM
Outside Dia.
25.4 mm
Overall Length
33.3 mm
Torsional Stiffness (Deg./In.-Lbs.)
27 Nm/Deg
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Specifications

Product Information

MFR #
MBCK25-8-7-A
Zoro #
G3423929
UPC #
634529291368
Country of Origin
United States

Dimensions

Bore Dia.
8 mm x 7 mm
Outside Dia.
25.4 mm
Overall Length
33.3 mm
Screw Size
M3
Length
33.3 mm
Fastening Dimensions
Metric

Details

Max. RPM
10000 RPM
Torsional Stiffness (Deg./In.-Lbs.)
27 Nm/Deg
Style
Clamp with Keyway
Max. Angular Misalignment
1.5 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
Weight
0.0734 lbs
B1 Shaft Penetration
15.9 mm
Bore Tolerance
+0.03 mm / -0.00 mm
Dynamic Torque Non-Reversing
3.40 Nm
Number of Screws
2 ea
Dynamic Torque Reversing
1.70 Nm
Screw Seating Torque
2.1 Nm
Static Torque
6.8 Nm
Keyway (K2)
2 mm
Measurement Type
Metric
Screw Material
Alloy Steel
Screw Finish
Black Oxide
Keyway (K1)
2 mm
B2 Shaft Penetration
15.9 mm
Axial Motion
0.30 mm

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 clamp 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 8mm x 7mm bores, 2mm 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. This bellows coupling has a balanced design for reduced vibration at high speeds of up to 10,000 RPM. Hardware is metric and tests beyond DIN 912 12.9 standards. It is RoHS and REACH compliant.

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