Home / For Epirco drifter / 3201195144 DRIVER SLEEVE STRAIGNT SPLINE 3201 1951 44 Coupling Rd 18u EPIROC DRIFTER PARTS
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3201195144 DRIVER SLEEVE STRAIGNT SPLINE 3201 1951 44 Coupling Rd 18u EPIROC DRIFTER PARTS

Straight spline driver sleeve, built for RD 18U drifters

This is the Epiroc 3201195144 driver sleeve, a straight-spline coupling part that fits the RD 18U drifter series. It sits in the rotation unit and passes torque from the chuck to the drill string. Made to Epiroc's own material spec and heat-treat process, it holds up when hole after hole asks for steady power delivery. Driller crews swap it in during scheduled overhauls or when splines start showing galling and backlash creeps up. Actual fit, actual service life—no marketing fluff.

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3201195144 DRIVER SLEEVE STRAIGNT SPLINE 3201 1951 44 Coupling Rd 18u EPIROC DRIFTER PARTS
#269
Highlights
Key Advantages
  • Straight spline profile keeps torque delivery even. Less chance of uneven wear across the mating surfaces, which means fewer unplanned changeouts underground.
  • Heat-treated alloy steel. We see these sleeves come out of 800+ percussion-hour rebuild cycles with splines still measuring within tolerance, provided PM is followed.
  • OEM part number 3201195144. No guesswork on tolerances—drops into RD 18U rotation unit without fitting hassles, no need to lap or shim.
  • Machined to original factory dimensions. Runout and spline pitch match the chuck and guide components exactly, so you avoid vibration that can crack other front-end parts.
  • We stock these alongside full overhaul kits. If you're doing a full RD 18U rebuild, you can pull the sleeve, guide, stop ring, and bearings in one shipment.
Use Cases
Applications
  • Underground production drilling with Epiroc RD 18U drifters on jumbos and long-hole rigs.
  • Tunnelling and civil works where percussive drilling in hard rock is the daily reality.
  • Quarry blast-hole drilling—granite, basalt, tough abrasive formations.
  • Workshop rebuilds: drifter rotation unit teardown and reassembly by on-site mechanics or service centers.
  • Swap-out during preventive maintenance when spline backlash exceeds 0.5–0.8 mm (check your site's spec).
Specs
Technical Specifications
BrandEpiroc
Part Number3201195144
DescriptionDriver Sleeve, Straight Spline
ApplicationRD 18U Drifter Rotation Unit
Spline TypeStraight (parallel key spline)
MaterialAlloy steel, heat-treated per Epiroc standard
Details
Detailed Description
Brand :Epiroc
Part No. :3201195401
Description :Driver
Use in :Rd 18u

Ref No.Part No.Description
03201195422OVERHAUL KIT
03201195424OVERHAUL KIT
1053201195125GUIDE
1403201195265STOP RING
2523201195152ROT.CHUCK BEAR.
2540102047800PIN
2603201195144DRIVER
2613201195411ROT.CH.BUSHING
3603201195118DAMPING PISTON
4253201195099PISTON GUIDE
4303201195205PISTON
4353201195206PISTON GUIDE
FAQ
FAQ
Will 3201195144 fit any other drifter model besides RD 18U?
It's specific to the RD 18U rotation assembly. Some older COP models might share internal parts, but always cross-check against the Epiroc parts book for your machine serial number. If you're unsure, send us the drifter info, and we'll confirm.
How do you verify it's genuine Epiroc and not a copy?
Each sleeve comes in Epiroc packaging with the part number 3201195144 laser-marked on the body. We source directly from authorized channels, so you get the same heat-treatment and steel grade as what's in the factory service kits.
What's a realistic lead time right now?
Many RD 18U drivetrain components are in regular stock rotation. If we have it, it ships same day or next. If we're out, current lead times fall between 4 and 12 working days depending on warehouse location. We'll confirm within a few hours of your inquiry.
When does a driver sleeve normally fail?
Splines start to mushroom or gall, usually after 1,500–2,500 percussion hours, depending on rock conditions and greasing intervals. Watch for increased shudder when collaring a hole or visible play when you pry the chuck. If the backlash is measurable with a dial gauge, it's time to swap it.
Can I use a generic aftermarket sleeve instead?
You can, but we see aftermarket versions failing early on spline hardness—some are too soft and deform, some are too hard and crack under peak torque. If OEM price is an issue, ask us about bulk or kit pricing—often the difference gets eaten up by reduced downtime anyway.
Stock
Check Stock & Get a Quote
Drop us a line with the part numbers you need. We'll check stock, bundle pricing, and give you an honest ship date—no AI auto-replies, just real people who know rock drills.
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