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RULAND MANUFACTURING PSR20-8-8-A 1/2 x 1/2 Inch Four Beam Coupling, Aluminum, Set Screw Style, 1.250 Inch OD, 1.500 Inch Lg.
Item: AF9WEFModel: PSR20-8-8-ACross Ref: 30VE81
7 In Stock
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€118.74 /unit
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Product Specifications:
| Item | Motion Control Coupling |
| Angular Misalignment | 3° |
| Application | Light-Duty Power Transmission, Servo Motors to Lead Screws |
| Axial Motion | 0.01" |
| Bore Dia. | 1/2" x 1/2" |
| Bore Diameter 1 | 1/2" |
| Bore Diameter 2 | 1/2" |
| Bore Tolerance | 0" to 0.001" |
| Bore Type | Round |
| Clearance Dia. | 31.8 mm |
| Coupling Material | Aluminum |
| Coupling Material Finish | Bright |
| Coupling Material Grade | Grade 7075 |
| Coupling Outside Diameter | 1 1/4" |
| Different Bore Sizes | No |
| Dynamic Torque Non-reversing | 26 lbs.-in. |
| Dynamic Torque Reversing | 13 lbs.-in. |
| Fastener Tightening Torque | 7.2 N-m |
| Features | Balanced Design For Reduced Vibration, Higher Torque Capacity, Larger Body Sizes Than Single Beam Couplings, Lower Windup, Machined From A Single Piece Of Material, Two Sets Of Two Spiral Cuts, Zero Backlash |
| Finish | Bright |
| For Environment | Angular Misalignment, Axial Motion, Parallel Misalignment |
| For Misalignment Type | Angular, Axial, Parallel |
| Full Bearing Support Required | Yes |
| Included Screws | (4) Set Screw |
| Length Through Bore | 17.02 mm |
| Length Through Bore 1 | 0.7" |
| Length Through Bore 2 | 0.7" |
| Material | Aluminum |
| Max. Angular Misalignment | 3° |
| Max. Bore Dia. | 1/2" |
| Max. Parallel Misalignment | 0.015" |
| Max. Speed | 6000 RPM |
| Max. Temp. Range | 225°F |
| Maximum Operating Temperature | 225°F |
| Min. Bore | 1/2" |
| Minimum Operating Temperature | -40°F |
| Moment Of Inertia | 0.034 lbs.-sq. in. |
| Number Of Beams | 4 |
| Number Of Locking Screws | 4 |
| Outside Dia. | 31.8 mm |
| Overall Length | 1 1/2" |
| Parallel Misalignment | 0.015" |
| Rated Torque | 52 lbs.-in. |
| Screw Material | Alloy Steel |
| Screw Material Finish | Black Oxide |
| Screw Thread Size | M6 |
| Screw Type | Set Screw |
| Setscrew Location | 2 |
| Shaft Locking Type | Set Screw |
| Shaft Tolerance | -0.0005" to 0" |
| Style | 4-Beam Set Screw |
| System Of Measurement | Imperial |
| Torque | 52 lbs.-in. |
| Torsional Stiffness | 8.33 lbs.-in./deg. |
| Zero Backlash | Yes |
Shipping Info:
| Ship weight (kg) | 0.27 |
| Ship height (cm) | 3.3 |
| Ship length (cm) | 15.24 |
| Ship width (cm) | 10.16 |
| HS code | 8483608000 |
| Country of Origin | US |
Product Variants
| Model | Different Bore Sizes | Overall Length | Coupling Material | Rated Torque | Torsional Stiffness | Axial Motion | Parallel Misalignment | Clearance Dia. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|
| PSR10-3-2-A | Yes | 51/64" | Aluminum | 12 lbs.-in. | 1.85 lbs.-in./deg. | 0.005" | 0.008" | 5/8" | €81.80 | |
| PSR10-3-3-A | No | 51/64" | Aluminum | 12 lbs.-in. | 1.85 lbs.-in./deg. | 0.005" | 0.008" | 5/8" | €70.70 | |
| PSR12-3-2.5-A | Yes | 29/32" | Aluminum | 17 lbs.-in. | 3.85 lbs.-in./deg. | 0.005" | 0.008" | 3/4" | €76.16 | |
| PSR12-3-2-A | Yes | 29/32" | Aluminum | 17 lbs.-in. | 3.85 lbs.-in./deg. | 0.005" | 0.008" | 3/4" | €76.16 | |
| PSR12-3-3-A | No | 29/32" | Aluminum | 17 lbs.-in. | 3.85 lbs.-in./deg. | 0.005" | 0.008" | 3/4" | €85.66 | |
| PSR12-4-2.5-A | Yes | 29/32" | Aluminum | 14 lbs.-in. | 3.03 lbs.-in./deg. | 0.005" | 0.008" | 3/4" | €76.16 | |
| PSR12-4-2-A | Yes | 29/32" | Aluminum | 14 lbs.-in. | 3.03 lbs.-in./deg. | 0.005" | 0.008" | 3/4" | €76.16 |
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RULAND MANUFACTURING PSR20-8-8-A 1/2 x 1/2 Inch Four Beam Coupling, Aluminum, Set Screw Style, 1.250 Inch OD, 1.500 Inch Lg.
€131.94 /unit