Rod-End Misalignment and Clearance
Spacers position a rod end between mounting tabs while adding clearance around the spherical ball and fastener. Select the spacer width, bore, and shoulder geometry to preserve the required angular travel.
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SG12-816W HMS12-816W Rod End Spacer
Part No.: HMS12-816W
· Thread-adjustment and fabrication hardware series
✓ ISO 9001 Certified
✓ SGS Verified
✓ 26+ Years Factory
✓ OEM / ODM Ready
D 0.749 in.
B 0.500 in.
High misalignment spacer geometry for rod end articulation
Carbon steel zinc plated and stainless options
Spacer profile tuned for installed width control
Wide range of misalignment angle options by size
HMS Material
Zinc plated carbon steel
SG Material
Stainless steel (optional)
⚡ Typically responds within 24 hours
MOQ:50 pcs / model
Lead Time:7–15 days
Sample:Free (excl. freight)
Payment:T/T · PayPal · L/C
Overview
ROD END SPACER SG / HMS Product Overview
SG12-816W / HMS12-816W is a high-misalignment spacer with 0.749″ bore (D), 0.875″ housing OD (D2), spacer width (B) = 0.500″, outer flange width (W) = 1.000″, inner flange width (W2) = 0.423″. Misalignment angle: ±54°. Total installed width: 2.875″.
SG (stainless steel) and HMS (carbon steel, zinc plated) high-misalignment spacers are used with rod ends and spherical bearings to increase angular articulation range beyond the standard body-to-housing clearance. A pair of spacers allows the rod end to misalign further without the housing contacting the mounting bracket — suited to suspension links, steering arms, and other assemblies where high angular travel is required.
Stainless version: SG12-816W. Carbon steel: HMS12-816W. Used in pairs (one each side of the rod end or bearing). Compatible with COM series spherical bearings and standard rod ends with matching bore.
Size Chart
ROD END SPACER SG / HMS Series — Full Size Range
All available sizes in the ROD END SPACER SG / HMS series. Can’t find your size? Contact us for custom dimensions.
| Part Number (Stainless) | Part Number (Carbon) | D +.000 -.001 | D2 +.005 -.005 | B +.003 -.000 | W +.005 -.005 | W2 +.005 -.005 | MIS. ANGLE a | Total Installed Width Ref. |
|---|---|---|---|---|---|---|---|---|
| SG10-84 | HMS10-84 | 0.624 | 0.825 | 0.500 | 0.250 | 0.360 | 54 | 1.250 |
| SG10-813 | HMS10-813 | 0.624 | 0.875 | 0.500 | 0.837 | 0.363 | 44 | 2.425 |
| SG12-84 | HMS12-84 | 0.749 | 0.850 | 0.500 | 0.250 | 0.423 | 56 | 1.375 |
| SG12-88 | HMS12-88 | 0.749 | 0.850 | 0.500 | 0.500 | 0.423 | 58 | 1.875 |
| SG12-108 | HMS12-108 | 0.749 | 0.950 | 0.625 | 0.500 | 0.423 | 52 | 1.875 |
| SG12-812 | HMS12-812 | 0.749 | 0.950 | 0.500 | 0.775 | 0.423 | 54 | 2.425 |
| SG12-816W | HMS12-816W | 0.749 | 0.875 | 0.500 | 1.000 | 0.423 | 54 | 2.875 |
| SG14-813 | HMS14-813 | 0.874 | 1.000 | 0.500 | 0.813 | 0.423 | 52 | 2.500 |
| SG14-1010 | HMS14-1010 | 0.874 | 1.062 | 0.625 | 0.625 | 0.423 | 44 | 2.125 |
| SG14-1012 | HMS14-1012 | 0.874 | 1.000 | 0.625 | 0.775 | 0.423 | 46 | 2.425 |
| SG16-910 | HMS16-910 | 0.999 | 1.250 | 0.563 | 0.625 | 0.673 | 66 | 2.625 |
| SG16-1010 | HMS16-1010 | 0.999 | 1.250 | 0.625 | 0.625 | 0.673 | 64 | 2.625 |
| SG16-1012 | HMS16-1012 | 0.999 | 1.250 | 0.625 | 0.750 | 0.673 | 60 | 2.875 |
| SG16-1013 | HMS16-1013 | 0.999 | 1.250 | 0.750 | 0.813 | 0.673 | 60 | 3.000 |
| SG16-1210 | HMS16-1210 | 0.999 | 1.250 | 0.750 | 0.625 | 0.673 | 60 | 2.625 |
| SG16-1212 | HMS16-1212 | 0.999 | 1.250 | 0.750 | 0.750 | 0.673 | 57 | 2.875 |
Quality Control
Every Unit Inspected Before Shipment
Raw Material Inspection
Material certifications verified. Composition confirmed by spectrometer before machining begins.
Thread Gauge Inspection
100% go/no-go gauge check on all threaded sections. Zero tolerance on dimensional non-conformance.
Load Capacity Test
Static and dynamic load tests run on representative samples from each production batch.
Dimensional Measurement
CMM verification of critical dimensions — ball diameter, bore, thread pitch, and body length.
Surface Inspection
Visual and tactile inspection for burrs, scratches, surface cracks, and plating defects.
Articulation Test
Misalignment angle and torque measured to confirm liner performance meets specification.
Heat Treatment Verify
Hardness tests confirm proper heat treatment on chromoly steel bodies and bearing balls.
Batch Documentation
Full traceability from raw material heat number to finished part. COC and inspection reports available.
Applications
Where ROD END SPACER SG / HMS Are Used
Related Products
All Products →More from the ROD END SPACER SG / HMS Series
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FAQ
ROD END SPACER SG / HMS Frequently Asked Questions
What is the SG12-816W/HMS12-816W rod end spacer used for?
It's a high-misalignment spacer with a 0.749" bore (D) used with rod ends and spherical bearings to increase angular articulation range beyond the standard body-to-housing clearance. Fitted as a pair (one on each side of the rod end or bearing), it lets the rod end misalign further without the housing contacting the mounting bracket — suited to suspension links, steering arms, and other assemblies where high angular travel is required.
What is the difference between the SG12-816W and HMS12-816W versions of this spacer?
SG12-816W is the stainless steel version and HMS12-816W is the zinc-plated carbon steel version of the same spacer — same dimensions, different material for corrosion resistance versus standard cost.
What are the bore and housing OD of the HMS12-816W/SG12-816W?
Bore (D) is 0.749" and housing OD (D2) is 0.875", with a spacer width (B) of 0.500" — confirm these against your rod end or spherical bearing's housing bore before ordering.
What misalignment angle does the HMS12-816W/SG12-816W support?
This spacer is rated for approximately ±54° of angular misalignment, with a total installed width of 2.875" when the pair is fitted.
What do the outer and inner flange widths mean for the HMS12-816W/SG12-816W?
Outer flange width (W) is 1.000" and inner flange width (W2) is 0.423" — these control how the spacer seats against the mounting bracket face and the rod-end/bearing body, so check orientation when installing the pair.
What is the HMS12-816W/SG12-816W compatible with?
It's compatible with COM series spherical bearings and standard rod ends with a matching bore, and is used in pairs — one spacer fitted on each side of the rod end or bearing.