MBC25-9-8-A RUL

Product Details

Manufacturer part number:
MBC25-9-8-A
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Availability:
1-2 weeks.
Estimated dates are contingent upon manufacturer stock.

Description

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 clamp type bellows coupling consists of two anodized aluminum hubs and a stainless steel bellows creating a lightweight low inertia coupling. It has 9mm x 8mm 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. 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. This bellows coupling is made from bar stock sourced exclusively from North American mills and manufactured in Ruland's Marlborough, Massachusetts factory under strict controls using proprietary processes.

Note

Stainless steel hubs are available upon request.

Specifications

Angular Misalignment:1.5 deg
Axial Motion:0.30 mm
B1 Shaft Penetration:15.9 mm
B2 Shaft Penetration:15.9 mm
Bore (B1):9 mm
Bore (B2):8 mm
Bore Tolerance:+0.03 mm / -0.00 mm
Conflict Minerals:Compliant
Country of Origin:US
Dynamic Torque Non-Reversing:3.40 Nm
Dynamic Torque Reversing:1.70 Nm
Finish Specification:Sulfuric Anodized MIL-A-8625 Type II, Class 2 and ASTM B580 Type B Black Anodize
Forged Clamp Screw:M3
Hub Width (LH):11.85 mm
ISO 9001:2015:ISO 9001:2015 Certified
Length (L):33.3 mm
Manufacturer:Ruland Manufacturing
Material:Anodized Aluminum
Material Specification:Hubs: 2024-T351 Aluminum Bar / Bellows: Type 321 Stainless Steel
Maximum Speed:10000 RPM
Note 2:Torque ratings are at maximum misalignment.
Note 3:Performance ratings are for guidance only. The user must determine suitability for a particular application.
Note 4:Torque ratings for the couplings are based on the physical limitations/failure point of the metal bellows. Under normal/typical conditions the hubs are capable of holding up to the rated torque of the metal bellows. In some cases, especially when the smallest standard bores are used or where shafts are undersized, slippage on the shaft is possible below the rated torque of the metal bellows. Keyways are available to provide additional torque capacity in the shaft/hub connection when required. Please consult technical support for more assistance.
Number of Screws:2 ea
Outer Diameter (OD):25.4 mm
Parallel Misalignment:0.10 mm
Prop 65:<img src="https://www.ruland.com/media/wysiwyg/prop-65.png"><b>WARNING</b> This product can expose you to chemicals including Ethylene Thiourea and Nickel (metallic), known to the State of California to cause cancer, and Bisphenol A and Ethylene Thiourea, known to the State of California to cause birth defects or other reproductive harm. For more information go to <a href="https://www.p65warnings.ca.gov/">www.P65Warnings.ca.gov</a>.
REACH:Compliant
Recommended Shaft Tolerance:+0.000 mm / -0.013 mm
RoHS3:Compliant
Screw Finish:Black Oxide
Screw Material:Alloy Steel
Screw Seating Torque:2.1 Nm
Static Torque:6.8 Nm
Style:Clamp
Tariff Code:8483.60.8000
Temperature:-40°F to 200°F (-40°C to 93°C)
Torsional Stiffness:27 Nm/Deg
Unit of Measurement:Metric