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Product Specifications:
| Item | Jaw Coupling Hub |
| Bore Dia. | 0.312" |
| Bore Diameter | 5/16" |
| Bore Tolerance | 0" to 0.002" |
| Bore Type | Round Bore |
| Coupling Overall Length | 1 3/4" |
| Coupling Size | Jc21 |
| Fail Safe | Yes |
| For Shaft Type | Round |
| Full Bearing Support Required | Yes |
| Hub Diameter | 1 5/16" |
| Hub Material | Aluminum |
| Hub Material Finish | Bright |
| Hub Material Grade | Grade 2024 |
| Hub Projection | 19/32" |
| Included Screws | Hex Socket Cap Screw |
| Jaw Profile | Curved |
| Keyway | No |
| Keyway Size | None |
| Length Through Bore | 3/5" |
| Maximum Operating Temperature | 180°F |
| Maximum Speed | 8000 RPM |
| Minimum Operating Temperature | -10°F |
| Number Of Locking Screws | 1 |
| Outside Dia. | 0.312" |
| Outside Diameter | 1 5/16" |
| Overall Length | 15 mm |
| Screw Material | Alloy Steel |
| Screw Material Finish | Black Oxide |
| Screw Thread Size | M3 |
| Shaft Locking Type | Clamp On |
| Shaft Tolerance | -0.0005" to 0" |
| Size | JC21 |
| System Of Measurement | Imperial |
| Zero Backlash | Yes |
Shipping Info:
| Ship weight (kg) | 0.04 |
| Ship height (cm) | 3.56 |
| Ship length (cm) | 4.45 |
| Ship width (cm) | 10.16 |
| HS code | 8483608000 |
| Country of Origin | US |
Product Variants
| Model | Coupling Size | Outside Dia. | Bore Dia. | Overall Coupling Length | Hub Material Grade | Length Through Bore | Bore Tolerance | Hub Projection | Price | |
|---|---|---|---|---|---|---|---|---|---|---|
| JC10-2-A | JC10 | 0.59" | 1/8" | - | Grade 2024 T351 | 0.3" | 0" to 0.002" | 19/64" | €45.58 | |
| JC10-3-A | JC10 | 0.59" | 0.188" | - | Grade 2024 T351 | 0.3" | 0" to 0.002" | 19/64" | €45.11 | |
| JC10-4-A | JC10 | 0.59" | - | - | Grade 2024 T351 | 0.3" | 0" to 0.002" | 19/64" | €43.32 | |
| JC12-3-A | Jc12 | - | 0.188" | - | Grade 2024 T351 | 2/5" | 0" to 0.002" | 25/64" | €46.67 | |
| JC12-4-A | Jc12 | - | - | - | Grade 2024 T351 | 2/5" | 0" to 0.002" | 25/64" | €46.67 | |
| JC12-5-A | Jc12 | - | - | - | Grade 2024 T351 | 2/5" | 0" to 0.002" | 25/64" | €46.67 | |
| JC16-4-A | Jc16 | 1" | - | - | Grade 2024 T351 | 1/2" | 0" to 0.002" | 15/32" | €60.43 |
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RULAND MANUFACTURING JC21-5-A 5/16 Inch Jaw Coupling Hub, Aluminum, Clamp Style, 1.313 Inch OD, 0.590 Inch Lg.
€86.20 /unit
