| Shaft Locking Type - Couplings | 1 Piece Clamp |
| Item | Motion Control Coupling |
| System of Measurement | Inch |
| Bore Dia. | 5/16 in x 5/16 in |
| Material - Couplings | Aluminum |
| Outside Dia. | 1.313 in |
| Overall Length | 1.7 in |
| Finish | Black Anodized |
| Outside Dia. (In.) | 1.313 |
| Rated Torque | 120 in-lb |
| Max. Angular Misalignment | 1.5 Degrees |
| Length through Bore | 0.811 in |
| Max. Axial Misalignment (In.) | +/-0.016 |
| Item - Motion Control Couplings | Motion Control Coupling |
| Torque (In.-Lbs.) | 120 |
| Screw Type | Cap Screw |
| Screw Size | M3 |
| Max. Temp. Range (F) | 200 Degrees |
| Style | Bellows Clamp |
| Max. Parallel Misalignment (In.) | 0.006 in |
| Min. Bore (In.) | 0.313 in |
| Max. Temp. | 200 Degrees F |
| Clearance Dia. (mm) | 33.3 |
| Overall Length (mm) | 41.00 |
| Max. Bore (In.) | 0.313 in |
| Overall Length (In.) | 1.623 |
| Torsional Stiffness (Deg./In.-Lbs.) | 400 |
| Size | BC21 |
| Clearance Dia. (In.) | 1.313 in |
| Max. RPM | 10,000 RPM |
| Length through Bore (In.) | 0.811 |
| Material | Aluminum |
| Length through Bore (mm) | 20.5 |
| Outside Dia. (mm) | 33.3 |
| Screw Size (mm) | M3 |
| Standards | Conflict Minerals Compliant, DIN 912 12.9 Screws, ISO 9001:2015, REACH Compliant, RoHS3 Compliant |
| Application | Encoders, Stepper / Servo |
| Bore Tolerance | +0.001 in / -0.000 in |
| Screw Material | Alloy Steel |
| Length Through Bore 2 | 0.8 in |
| Shaft Locking Type | Clamp On |
| Included Screws | (2) Hex Socket Cap Screw |
| Torsional Stiffness | 400 in-lb/Deg |
| Zero Backlash | Yes |
| Bore Type | Round |
| Hub Material | Aluminum |
| Minimum Operating Temperature | -40 Degrees F |
| Bellows Material Finish | None |
| Bore Diameter 2 | 5/16 in |
| Shaft Tolerance | +0.0000 in / -0.0005 in |
| Parallel Misalignment | 0.006 in |
| Full Bearing Support Required | Yes |
| Coupling Outside Diameter | 1.31 in |
| Dynamic Torque Non-Reversing | 60 lb-in |
| Bellows Material Grade | MIL-A-8625 Type II, Class 2 and ASTM B580 Type B |
| Maximum Bore Diameter | 5/16 in |
| Screw Material Finish | Black Oxide |
| Bellows Material | Stainless Steel |
| Maximum Torque | 120 in-lb |
| Hub Material Finish | Sulfuric Anodized MIL-A-8625 Type II, Class 2 and ASTM B580 Type B Black Anodize |
| Maximum Speed | 10,000 RPM |
| Different Bore Sizes | No |
| Minimum Bore Diameter | 5/16 in |
| Clearance Diameter | 1.31 in |
| Maximum Operating Temperature | 200 Degrees F |
| Screw Thread Size | M3 |
| Hub Length | 0.59 in |
| Features | Balanced Design for Reduced Vibration, Lightweight and has Low Inertia, Zero Backlash |
| Moment of Inertia | 0.03744 lb-in sq |
| Axial Motion | 0.016 in |
| Angular Misalignment | 1.5 Degrees |
| Hub Material Grade | 2024 |
| For Misalignment Type | Angular, Axial, Parallel |
| Fastener Tightening Torque | 18.6 in-lb |
| Length Through Bore 1 | 0.8 in |
| Dynamic Torque Reversing | 30 lb-in |
| Bore Diameter 1 | 5/16 in |
| Number of Locking Screws | 2 |
| Country of Origin (subject to change) | United States |
| Package Quantity | 1 |
Coupling, Bellows Clamp, 5/16in.x 5/16in., RULAND, Mfr# BC21-5-5-A
-3% / ea
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Motion Control Coupling, Bore Diameter 1 5/16 in, Bore Diameter 2 5/16 in, Coupling Outside Diameter 1.31 in, Maximum Speed 10,000 RPM, Maximum Torque 120 in-lb, Hub Material Aluminum, Overall Length 1.7 in, Shaft Locking Type Clamp On, System of Measurement Inch, Clearance Diameter 1.31 in, Bellows Material Stainless Steel, Different Bore Sizes No, Length Through Bore 1 0.8 in, Length Through Bore 2 0.8 in, Parallel Misalignment 0.006 in, Bore Type Round, Dynamic Torque Non-Reversing 60 lb-in
9999 in stock
Must order in multiples of 1
Subtotal:
$109.99
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