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RULAND MANUFACTURING BCK44-1 1/4 -30MM-A 1 1/4 x 30mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 2.750 Inch, OD 3.439 Inch Lg.
Item: CT9FVVModel: BCK44-1 1/4 -30MM-ACross Ref: 805M50
7 In Stock
1 1/4" x 30 mm
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10.00% off
€605.84 /unit
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Product Specifications:
| Item | Coupling |
| Angular Misalignment | 2° |
| Application | Encoders, Stepper / Servo |
| Axial Motion | 0.03" |
| Bellows Material | Stainless Steel |
| Bellows Material Grade | Grade 321 |
| Bore Dia. 1 | 1 1/4" |
| Bore Dia. 2 | 30 mm |
| Bore Tolerance | 0" to 0.001" |
| Bore Type | Round Keyed |
| Coupling Outside Dia. | 2 3/4" |
| Coupling Outside Diameter | 2.75" |
| Different Bore Sizes | Yes |
| Dynamic Torque Non-reversing | 462.5 lbs.-in. |
| Dynamic Torque Reversing | 231.3 lbs.-in. |
| Fastener Tightening Torque | 39 N-m |
| Features | Balanced Design For High RPM, Constant Velocity, High Torque With Low Inertia, High Torsional Stiffness, Long Life With No Maintenance |
| For Misalignment Type | Angular, Axial, Parallel |
| Full Bearing Support Required | Yes |
| Hub Length | 1 1/5" |
| Hub Material | Aluminum |
| Hub Material Finish | Sulfuric Anodized |
| Hub Material Grade | 2024 |
| Included Screws | (2) Hex Cap Screw |
| Keyway Depth 1 | 1/8" |
| Keyway Depth 2 | 3.3 mm |
| Keyway Width 1 | 1/4" |
| Keyway Width 2 | 8 mm |
| Length Through Bore 1 | 1.58" |
| Length Through Bore 2 | 1.58" |
| Maximum Operating Temperature | 200°F |
| Maximum Speed | 10000 RPM |
| Minimum Operating Temperature | -40°F |
| Moment Of Inertia | 1.437 lbs.-sq. in. |
| Number Of Locking Screws | 2 |
| Overall Length | 3 11/25" |
| Parallel Misalignment | 0.012" |
| Rated Torque | 925 lbs.-in. |
| Screw Material | Alloy Steel |
| Screw Material Finish | Black Oxide |
| Screw Thread Size | M8 |
| Shaft Locking Type | Clamp On |
| Shaft Tolerance | -0.0005" to 0" |
| System Of Measurement | Inch to Metric Bore |
| Torsional Stiffness | 2100 lbs.-in./deg. |
| Zero Backlash | Yes |
Shipping Info:
| Ship weight (kg) | 0.5 |
| Ship height (cm) | 8.74 |
| Ship length (cm) | 6.99 |
| Ship width (cm) | 6.99 |
| Country of Origin | US |
Product Variants
| Model | Bore Dia. 1 | Bore Dia. 2 | Coupling Outside Dia. | Overall Length | Rated Torque | Torsional Stiffness | Moment Of Inertia | Dynamic Torque Non-reversing | Price | |
|---|---|---|---|---|---|---|---|---|---|---|
| BCK44-1 1/2 -25MM-A | 1 1/2" | 25 mm | 2 3/4" | 3 11/25" | 925 lbs.-in. | 2100 lbs.-in./deg. | 1.416 lbs.-sq. in. | 462.5 lbs.-in. | €673.16 | |
| BCK44-1 1/2 -30MM-A | 1 1/2" | 30 mm | 2 3/4" | 3 11/25" | 925 lbs.-in. | 2100 lbs.-in./deg. | 1.405 lbs.-sq. in. | 462.5 lbs.-in. | €673.16 | |
| BCK50-1 1/2 -30MM-A | 1 1/2" | 30 mm | 3.13" | 3.82" | 1350 lbs.-in. | 3500 lbs.-in./deg. | 2.767 lbs.-sq. in. | 675 lbs.-in. | €774.25 | |
| BCK44-1 1/2 -35MM-A | 1 1/2" | 35 mm | 2 3/4" | 3 11/25" | 925 lbs.-in. | 2100 lbs.-in./deg. | 1.385 lbs.-sq. in. | 462.5 lbs.-in. | €673.16 | |
| BCK50-1 1/2 -35MM-A | 1 1/2" | 35 mm | 3.13" | 3.82" | 1350 lbs.-in. | 3500 lbs.-in./deg. | 2.745 lbs.-sq. in. | 675 lbs.-in. | €774.25 | |
| BCK44-1 1/4 -25MM-A | 1 1/4" | 25 mm | 2 3/4" | 3 11/25" | 925 lbs.-in. | 2100 lbs.-in./deg. | 1.448 lbs.-sq. in. | 462.5 lbs.-in. | €673.16 | |
| BCK50-1 1/4 -25MM-A | 1 1/4" | 25 mm | 3.13" | 3.82" | 1350 lbs.-in. | 3500 lbs.-in./deg. | 2.817 lbs.-sq. in. | 675 lbs.-in. | €774.25 |
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RULAND MANUFACTURING BCK44-1 1/4 -30MM-A 1 1/4 x 30mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 2.750 Inch, OD 3.439 Inch Lg.
€673.16 /unit