This item is Discontinued.

Ruland Keyed Set Bellows Cplg, Bores 0.750"x0.500", OD 1.625", L 2.000", Alum BSK26-12-8-A

Keyed Set Bellows Cplg, Bores 0.750"x0.500", OD 1.625", L 2.000", Alum (Discontinued)

  • Mfr # BSK26-12-8-A
  • Zoro # G3424288
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Specifications

Product Information

MFR #
BSK26-12-8-A
Zoro #
G3424288
UPC #
634529297599
Country of Origin
United States

Dimensions

Bore Dia.
0.750 in x 0.500 in
Outside Dia.
1.625 in
Overall Length
2.000 in
Length
2.000 in
Fastening Dimensions
Metric
Set Screw Size
M5

Details

Max. RPM
10000 RPM
Max. Temp. Range (F)
-40°F to 200°F (-40°C to 93°C)
Max. Parallel Misalignment (In.)
0.010 in
Max. Angular Misalignment
2.0 deg
Material
Anodized Aluminum
Torsional Stiffness (Deg./In.-Lbs.)
550 lb-in/Deg
Style
Set Screw with Keyway
Weight
0.2821 lbs
Keyway (K2)
1/8 in
Measurement Type
Inch
B2 Shaft Penetration
0.946 in
Screw Finish
Black Oxide
Static Torque
250 lb-in
Bore Tolerance
+0.001 in / -0.000 in
Keyway (K1)
3/16 in
Screw Material
Alloy Steel
Dynamic Torque Non-Reversing
125 lb-in
Dynamic Torque Reversing
62.5 lb-in
Number of Screws
4 ea
Screw Seating Torque
4 Nm
Axial Motion
0.020 in
B1 Shaft Penetration
0.946 in

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 0.750" x 0.500" bores, 3/16" x 1/8" keyways, 1.625" OD, and 2.000" 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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