Search by part number, series, material, application, or specification.
Press Enter to view all results Esc to close
related-product-inchSYZ-F004 is a rebuildable flex joint with 2-5/16″ mounting width, 9/16″ bolt diameter, and 7/8″-14 × 3.15″ thread length. Housing OD = 2.36″. Bushing material: Polyurethane. Offset angle: 9°.
The SYZ flex joint uses a 4130 heat-treated chromoly steel housing, a chromoly hard-chrome-plated ball, and a Polyurethane bushing. The rebuildable design allows the bushing to be replaced when worn, extending service life in heavy-pivot applications such as 4-link suspension, panhard bars, and chassis-to-axle connections. Both right-hand and left-hand thread configurations are available.
Replacement bushings available separately. Custom housing sizes available on request. Polyurethane bushing provides good vibration damping; Delrin (acetal) bushing offers lower friction and tighter tolerance. Weldable sleeve configuration also available.
All available sizes in the REBUILDABLE FLEX JOINT series. Can’t find your size? Contact us for custom dimensions.
| Part Number | Mounting Width W | Bolt Dia. B | Thread UNF | Thread Length C | Housing O.D. D | Bushing Material | Offset Angle |
|---|---|---|---|---|---|---|---|
| SYZ-F001 | 2-5/8" | 9/16" | 1 1/4"-12 | 5" | 3" | Polyurethane | 0 |
| SYZ-F002 | 2-5/8" | 9/16" | 1 1/4"-12 | 5" | 3" | Polyurethane | 10 |
| SYZ-F003 | 2" | 7/16" | 7/8"-14 | 3.15" | 2.36" | Polyurethane | 0 |
| SYZ-F004 | 2-5/16" | 9/16" | 7/8"-14 | 3.15" | 2.36" | Polyurethane | 9 |
| SYZ-F005 | 2-5/8" | 9/16" | 1 1/4"-12 | 3.5" | 2.68" | Delrin | - |
| SYZ-F006 | 2-5/8" | 9/16" | 1"-14 | 3.5" | 2.68" | Delrin | - |
| SYZ-F007 | 2-5/8" | 9/16" | 7/8"-14 | 3.5" | 2.68" | Delrin | - |
| SYZ-F008 | 1.6" | 9/16" | 1"-14 | 2.6" | 2.1" | Delrin | - |
| SYZ-F009 | 1.6" | 9/16" | 7/8"-14 | 2.6" | 2.1" | Delrin | - |
| SYZ-F010 | 1.6" | 9/16" | 3/4"-16 | 2.6" | 2.1" | Delrin | - |
| SYZ-F011 | 1.6" | 7/16" | 1"-14 | 2.6" | 2.1" | Delrin | - |
| SYZ-F012 | 1.6" | 7/16" | 7/8"-14 | 2.6" | 2.1" | Delrin | - |
| SYZ-F013 | 1.6" | 7/16" | 3/4"-16 | 2.6" | 2.1" | Delrin | - |
| SYZ-F014 | 7/8" | 3/4" | 3/4"-16 | 2.6" | 2.1" | Delrin | - |
| SYZ-F015 | 2-5/8" | 9/16" | 1 1/4"-12 | 3.5" | 2.68" | Polyurethane | - |
| SYZ-F016 | 2-5/8" | 9/16" | 1"-14 | 3.5" | 2.68" | Polyurethane | - |
| SYZ-F017 | 2-5/8" | 9/16" | 7/8"-14 | 3.5" | 2.68" | Polyurethane | - |
| SYZ-F018 | 2-5/8" | 5/8" | 1 1/4"-12 | 3.5" | 2.68" | Polyurethane | - |
| SYZ-F019 | 2-5/8" | 5/8" | 1"-14 | 3.5" | 2.68" | Polyurethane | - |
| SYZ-F020 | 2-5/8" | 5/8" | 7/8"-14 | 3.5" | 2.68" | Polyurethane | - |
Material certifications verified. Composition confirmed by spectrometer before machining begins.
100% go/no-go gauge check on all threaded sections. Zero tolerance on dimensional non-conformance.
Static and dynamic load tests run on representative samples from each production batch.
CMM verification of critical dimensions — ball diameter, bore, thread pitch, and body length.
Visual and tactile inspection for burrs, scratches, surface cracks, and plating defects.
Misalignment angle and torque measured to confirm liner performance meets specification.
Hardness tests confirm proper heat treatment on chromoly steel bodies and bearing balls.
Full traceability from raw material heat number to finished part. COC and inspection reports available.
Share your part number, required quantity, and any special material or packaging requirements. We respond within 24 hours.
The SYZ-F004 is a rebuildable flex joint for heavy-pivot applications such as 4-link suspension, panhard bars, and chassis-to-axle connections. Its rebuildable design lets the bushing be replaced when worn instead of replacing the whole joint.
Mounting width is 2-5/16", bolt diameter is 9/16", and the threaded end is 7/8"-14 with a thread length of 3.15".
Housing OD is 2.36" — check this against your mounting bracket clearance before ordering.
The housing is 4130 heat-treated chromoly steel, zinc plated, the ball is 4130 chromoly steel, hard chrome plated, and this SKU uses a Polyurethane bushing.
This SYZ-F004 ships with a Polyurethane bushing. Polyurethane provides good vibration damping; Delrin (acetal) offers lower friction and tighter tolerance. Replacement bushings are available separately if you want to swap to Delrin for its different friction/damping characteristics.
The SYZ-F004 has a 9° offset angle between the threaded shank and the housing centerline — confirm this matches your linkage geometry before ordering.
