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Keyed Clamp Bellows Cplg, Bores 18mmx0.375", OD 1.625", L 2.000", Alum

  • Mfr # BCK26-18MM-3/8"-A

  • Zoro # G3424656


product price: 
$
138.99
/ea
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Key Features

Bore Dia.
18 mm x 0.375 in
Max. RPM
10000 RPM
Outside Dia.
1.625 in (41.3 mm)
Overall Length
2.000 in (50.8 mm)
Torsional Stiffness (Deg./In.-Lbs.)
550 lb-in/Deg (63 Nm/Deg)
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Specifications

Product Information

MFR #
BCK26-18MM-3/8"-A
Zoro #
G3424656
UPC #
634529292594
Country of Origin
United States

Dimensions

Bore Dia.
18 mm x 0.375 in
Outside Dia.
1.625 in (41.3 mm)
Overall Length
2.000 in (50.8 mm)
Screw Size
M4
Length
2.000 in (50.8 mm)
Fastening Dimensions
Metric

Details

Max. RPM
10000 RPM
Torsional Stiffness (Deg./In.-Lbs.)
550 lb-in/Deg (63 Nm/Deg)
Max. Temp. Range (F)
-40°F to 200°F (-40°C to 93°C)
Max. Angular Misalignment
2.0 deg
Max. Parallel Misalignment (In.)
0.010 in (0.25 mm)
Style
Clamp with Keyway
Material
Anodized Aluminum
Weight
0.2815 lbs
Static Torque
250 lb-in (28.0 Nm)
Keyway (K2)
3/32 in
B2 Shaft Penetration
0.946 in
B1 Shaft Penetration
24 mm
Screw Material
Alloy Steel
Screw Seating Torque
4.6 Nm
Dynamic Torque Reversing
62.5 lb-in (7.00 Nm)
Keyway (K1)
6 mm
Dynamic Torque Non-Reversing
125 lb-in (14.00 Nm)
Axial Motion
0.020 in (0.50 mm)
Screw Finish
Black Oxide
Measurement Type
Inch/Metric
Bore Tolerance
+0.001 in / -0.000 in (+0.03 mm / -0.00 mm)
Number of Screws
2 ea

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 18mm x 0.375" bores, 6mm x 3/32" keyways, 1.625" (41.3mm) OD, and 2.000" (50.8mm) 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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