Rod-End Rebuild and Replacement
Precision steel balls can replace worn spherical elements in serviceable rod-end or flex-joint assemblies when the ball geometry and fit are matched to the housing and race.
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HMBL20MP Steel Ball HMBL
Part No.: HMBL20MP
· Thread-adjustment and fabrication hardware series
✓ ISO 9001 Certified
✓ SGS Verified
✓ 26+ Years Factory
✓ OEM / ODM Ready
D 2.250 in.
B 1.2500 in.
52100 bearing steel standard with 440C stainless option
Heat treated hard chrome plated high misalignment ball construction
Precision ground geometry for increased articulation hardware
Special production sizes available for volume demand
Material
52100 bearing steel (440c stainless optional)
Treatment
Heat treated, hard chrome plated
Precision
Precision ground
Special Sizes
Available in volume
⚡ 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
STEEL BALL HMBL Product Overview
HMBL20MP is a high-misalignment steel ball with 1.2500″ bore (B), 2.250″ ball diameter (D), 1.523″ outer diameter at equator (O), 1.875″ body width (W), and 0.020″ chamfer (K).
Made from 52100 bearing steel — precision ground, heat treated, and hard chrome plated. The HMBL series uses a larger-diameter ball relative to bore size compared to standard CBL-DP balls, allowing greater misalignment angle before the ball contacts the housing edge. Used in high-misalignment rod end housings (YPB, SLB-style) and in custom assemblies where increased angular travel is required. 440C stainless steel option available.
440C stainless steel option available. Standard bore ball replacement: CBL-DP series. Sold individually; verify housing race geometry before installation.
Size Chart
STEEL BALL HMBL Series — Full Size Range
All available sizes in the STEEL BALL HMBL series. Can’t find your size? Contact us for custom dimensions.
| Part Number | D +0.005 -0.005 | B +0.0025 -0.0025 | O +0.002 -0 | W +0 -0.005 | K +0.01 -0 |
|---|---|---|---|---|---|
| HMBL3MP | 0.437 | 0.1900 | 0.319 | 0.500 | 0.015 |
| HMBL4MP | 0.593 | 0.2500 | 0.390 | 0.593 | 0.015 |
| HMBL5MP | 0.593 | 0.3125 | 0.418 | 0.625 | 0.015 |
| HMBL5MP-1 | 0.781 | 0.3125 | 0.512 | 0.813 | 0.015 |
| HMBL6MP | 0.781 | 0.3750 | 0.512 | 0.813 | 0.015 |
| HMBL7MP | 0.875 | 0.4375 | 0.618 | 0.875 | 0.015 |
| HMBL8MP | 1.000 | 0.5000 | 0.730 | 0.937 | 0.015 |
| HMBL10MP | 1.250 | 0.6250 | 0.856 | 1.200 | 0.015 |
| HMBL12MP | 1.375 | 0.7500 | 0.970 | 1.280 | 0.020 |
| HMBL14MP | 1.531 | 0.8750 | 1.140 | 1.400 | 0.020 |
| HMBL16MP | 1.875 | 1.0000 | 1.278 | 1.875 | 0.020 |
| HMBL20MP | 2.250 | 1.2500 | 1.523 | 1.875 | 0.020 |
| HMBL24MP | 2.672 | 1.5000 | 1.800 | 2.250 | 0.020 |
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 STEEL BALL HMBL Are Used
Related Products
All Products →More from the STEEL BALL HMBL Series
Get a Quote
Request a Quote for the STEEL BALL HMBL Series
Share your part number, required quantity, and any special material or packaging requirements. We respond within 24 hours.
Email
⚡ Reply in 24 hrs
🎁 Free samples
🔒 NDA available
📦 MOQ from 50 pcs
FAQ
STEEL BALL HMBL Frequently Asked Questions
What is the HMBL20MP steel ball used for?
The HMBL20MP is a high-misalignment replacement steel ball with a 1.2500" bore, sized to give greater angular travel than a standard-bore ball before the ball edge contacts the housing — used in high-misalignment rod-end housings (YPB, SLB-style) and custom assemblies needing extra angular travel.
What are the bore and ball diameter of the HMBL20MP?
Bore (B) is 1.2500", ball diameter (D) is 2.250", body width (W) is 1.875", outer diameter at the equator (O) is 1.523", with a 0.020" chamfer (K).
What material is the HMBL20MP made from, and is a stainless option available?
The HMBL20MP is made from 52100 bearing steel — precision ground, heat treated, and hard chrome plated. A 440C stainless steel option is available on request.
How is the HMBL20MP different from a standard CBL-DP ball?
The HMBL20MP uses a larger-diameter ball relative to its bore than the standard CBL-DP series, which is what allows the greater misalignment angle before the ball contacts the housing edge — it is not a drop-in replacement for a standard-bore CBL-DP ball.
What housings is the HMBL20MP compatible with?
The HMBL20MP is intended for high-misalignment rod-end housings such as the YPB and SLB-style series, or custom assemblies built for increased angular travel — verify your housing's race geometry before installation, since it is sold individually rather than as a pre-assembled bearing.
Can SYZ supply the HMBL20MP in volume or in special sizes?
Yes. Special sizes of the HMBL ball series, including the HMBL20MP, are available in volume — confirm quantity and, if needed, the 440C stainless option when requesting a quote.