Precision Sleeves for Gearboxes & Drive Systems
Gearboxes and drive systems operate under high loads, varying speeds, and constant vibration. The efficiency and lifespan of these assemblies depend on the precision of their internal components. SleeveMFG manufactures custom-machined sleeves, spacers, and bushings designed to meet the strict dimensional and geometric tolerances required for power transmission equipment.
We work directly from your engineering drawings, 3D models, or physical samples to produce components that fit your gearbox assembly requirements, whether for new OEM production or MRO replacement.
Made to print: rotational components for gear shafts, bearings, and sealing surfaces within drive systems.
Component Range
Custom Components for Power Transmission
We specialize in the rotational components that support gear shafts, bearings, and sealing surfaces within drive systems.
Bearing Sleeves
Precision-ground sleeves to ensure proper fit and load distribution for bearings in high-speed drive assemblies.
Spacer Sleeves
Custom-length spacers machined for precise gear positioning and axial spacing within the gearbox housing.
Shaft Protection Sleeves
Hardened and ground sleeves for seal locations, designed to prevent shaft wear and simplify maintenance.
Input & Output Shaft Sleeves
Custom components for coupling interfaces and transmission shafts requiring tight concentricity.
Bushings
Precision bushings for gear carriers and pivot points, manufactured to specific clearance requirements.
No catalog parts. Every component machined to your drawing.
Send us your specifications and receive a feasibility and lead-time review for your gearbox components.
Engineering Capabilities
Engineering Capabilities for Drive Assemblies
Gearbox components require more than just standard machining; they demand precise control over critical features to prevent premature failure.
Geometric Precision
In drive systems, radial runout and concentricity are critical to minimizing vibration and noise. We utilize CNC turning combined with OD/ID grinding to achieve:
0.01 mm
Concentricity, down to
Critical for coupling interfaces and transmission shafts.
0.005 mm
Roundness, down to
Minimizes vibration and noise in high-speed rotation.
Ra 0.2 μm
Surface finish
Optimal seal performance and bearing contact.
Material Selection
We machine a wide range of materials suited for the mechanical demands of gearboxes.
- Case-Hardened Steels
- 4140, 42CrMo, and 40Cr for high-strength requirements.
- Bearing Steels
- 52100 and GCr15 for high wear resistance.
- Stainless Steels
- 304, 316, and 17-4PH for corrosive environments or food-grade gearboxes.
- Bronze Alloys
- For bushing applications requiring low friction.
Secondary Processes
To meet specific hardness or durability requirements, we coordinate the following treatments:
- Heat Treatment
- Induction hardening, carburizing, and quenching & tempering.
- Surface Coatings
- Black oxide, hard chrome plating, and electroless nickel plating to improve corrosion resistance and surface hardness.
OEM & MRO Partnership
Why OEMs and MROs Partner with SleeveMFG
We focus on the specific needs of the industrial machinery sector, prioritizing repeatability and technical compliance.
Made-to-Print Manufacturing
We do not supply catalog parts. Every component is machined to your specific drawing, ensuring full compatibility with your existing gearbox design.
Prototype to Production
Whether you need a single replacement sleeve for a legacy gearbox or a production run for new equipment, we maintain flexible capacity to support your timeline.
Quality Assurance
All parts are inspected against your drawing specifications using CMM, profile projectors, and precision bore gauges to ensure they meet your fit and tolerance requirements before shipping.
Request a Quote for Your Gearbox Components
To receive a quote, please submit your engineering files (PDF, STEP, DWG) along with your material, quantity, and tolerance requirements.
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Email
info@sleevemfg.com
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Phone
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Address
For urgent replacement parts or custom production, our team will review your drawings and provide a rapid response regarding lead times and manufacturing feasibility.
Send Your Engineering Files
Share your drawings, 3D models, or sample details, and our engineering team will confirm manufacturability, tolerances, and lead times for your sleeves, spacers, and bushings.