Home / Rock Drill Rig Accessories / 3128256166 Plain Bearing Epiroc rock drilling rigs part Atlas Copco Bronze Bushing 3128 2561 66
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3128256166 Plain Bearing Epiroc rock drilling rigs part Atlas Copco Bronze Bushing 3128 2561 66

Solid bronze bushing that actually holds up in Epiroc rigs

When a plain bearing wears out on a Boomer K41 or Simba S7d, the whole feed or rotation can get sloppy. The 3128256166 is a straight swap for the Atlas Copco/Epiroc factory part — same dimensions, same bronze alloy spec. It's machined to fit without shimming or rework, and the material handles the constant pounding and fine dust common in underground headings. If you're running Simba H1257 long-hole drills, this bushing takes the brunt so your shaft and pulley keep turning true. Less play, fewer unplanned stops.

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3128256166 Plain Bearing Epiroc rock drilling rigs part Atlas Copco Bronze Bushing 3128 2561 66
#305
Highlights
Key Advantages
  • Same bronze grade as the factory bushing — no mystery alloys that gall or seize after 200 hours
  • Fits Boomer K41, Simba H1257, and Simba S7d without any modifications or extra parts
  • Machined to OEM dimensions, so you won’t waste time fighting it into the bore
  • Holds up to the shock loads and dust that eat cheap bushings in weeks
Use Cases
Applications
  • Boomer K41 face drilling jumbo — front feed slide and rotation unit pivot points
  • Simba S7d long-hole rig — replace worn bushings in the feed beam assembly
  • Simba H1257 production drill — keeps the drill string aligned under high thrust
  • Underground decline and tunnel development — where dust and water accelerate wear
  • Any rebuild of Epiroc drill feeds that calls for 3128256166
Specs
Technical Specifications
BrandEpiroc (Atlas Copco)
Part Number3128256166
DescriptionPlain Bearing (Bronze Bushing)
MaterialBronze alloy — same spec as the original
ModelsBoomer K41, Simba H1257, Simba S7d
Details
Detailed Description
Brand :Epiroc
Part No. :3128256166
Description :Plain Bearing
Use in :Boomer K41 , Simba H1257 , Simba S7d

3128256166 Plain Bearing Epiroc rock drilling rigs parts Atlas Copco Bronze Bushing bearing 3128 2561 66


EPIROC - SIMBA S7D
Ref No.Part No.Description
03128314104PULLEY WHEEL
10324155065BACK UP RING
23128256167PULLEY WHEEL
33128256166PLAIN BEARING
43128256165SHAFT
50147140303SCREW. HEX HEAD
60544216200GREASE NIPPLE
70661101500SEAL WASHER
80686644103PLUG
90686925227PROTECTION CAP


FAQ
FAQ
Is this a genuine Epiroc part?
No, these are aftermarket bushings built to the original drawing and material spec. If your site requires genuine tagging, let us know — we can quote OEM stock when available.
What other part numbers relate to this bushing?
3128256166 is often ordered alongside the shaft (3128256165), pulley wheels (3128314104, 3128256167), and back-up ring (0324155065) when rebuilding a Simba S7d feed.
How do I check if my existing bushing is shot?
Grab the shaft and check for radial play. If you feel knocking or see bronze flakes in the grease, the bushing is done. Also measure the ID with calipers — anything past 0.1mm oversize means it’s time to swap it.
Will I need any special tools to fit it?
Standard bushing drift and a press, or a threaded rod with stepped plates. Freeze it before fitting if your housing bore is tight — it makes the job quicker.
Are these bushings kept in stock?
Yes, we keep a buffer of 3128256166 on the shelf. Typically dispatch within 1-2 days. Express freight can be arranged if your rig is down.
Stock
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Tell us your rig model and how many you need — we'll confirm compatibility and ship them fast.
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