3115374400 BUSHING ATLAS COPCO

(Also searched as: 3115 3744 00 BUSHING ATLAS COPCO, 3115-3744-00, 3115374400)

The 3115374400 BUSHING ATLAS COPCO is one of those parts that rarely gets attention until it’s worn—then everything around it suddenly feels louder, hotter, and less precise. In rock drilling, bushings don’t just “sit there.” They protect high-value components by taking the friction, absorbing micro-movement, and keeping critical fits stable while the machine works in dust, vibration, and shock.

From the images you shared, this is a steel-backed, bronze-lined ring bushing with internal lubrication grooves—a design commonly used in drifter and rotation-related assemblies where controlled sliding contact must remain reliable under punishing conditions. That bronze-lined surface is not decoration; it’s a wear-optimized interface built to reduce scoring and help the lubricant stay where it needs to be during long shifts.

As 3GEN Export, we supply the 3115374400 BUSHING ATLAS COPCO as an OEM-quality spare part and deliver worldwide in 5 working days, so maintenance planning stays predictable even when operations are not.

What the 3115374400 BUSHING ATLAS COPCO does

At its core, the 3115374400 BUSHING ATLAS COPCO is a precision wear liner. Its job is to create a controlled bearing surface between moving or rotating parts—usually a shaft-to-housing or sleeve-to-body interface—so that:

. Friction is reduced and heat is controlled
. Alignment remains stable under load
. Metal-to-metal contact is prevented (or minimized)
. The parent assembly stays protected from rapid wear
. Lubrication is distributed consistently via internal grooves

In drilling equipment, small tolerance changes can turn into large mechanical symptoms. That’s why the 3115374400 BUSHING ATLAS COPCO matters: it helps keep motion “clean” when the work environment is anything but clean.

Why this bushing is critical in rock drill systems

Rock drills and drifters operate in a reality that most industrial machines never face:

. Constant percussion shock waves
. Abrasive fines that invade every gap
. High torque changes during rotation load spikes
. Heat cycling across long drilling sessions
. Vibration that tries to loosen every fit

The 3115374400 BUSHING ATLAS COPCO is designed to be the sacrificial interface that wears in a controlled way—so more expensive parts do not.

When the bushing is healthy, the machine typically feels:

. More stable under load
. Less noisy during engagement
. More consistent in performance
. Less prone to “cascading wear” across neighboring components

When the bushing is worn, the symptoms can spread fast, because looseness and misalignment amplify vibration, and vibration accelerates wear.

What the images reveal about the 3115374400 BUSHING ATLAS COPCO

Your photos show a classic heavy-duty bushing construction:

. A steel outer shell for strength and press-fit stability
. A bronze-colored inner lining acting as the bearing surface
. Multiple internal grooves to retain lubricant and distribute it evenly
. A wide, thick ring profile suggesting high-load service

That groove pattern matters. In drilling applications, lubricant does not behave politely—it gets pushed, diluted, contaminated, and displaced. Grooves help the 3115374400 BUSHING ATLAS COPCO maintain a usable film longer and reduce the risk of dry contact.

Where the 3115374400 BUSHING ATLAS COPCO is commonly used

The exact position depends on the machine configuration, but online catalogs and listings commonly associate 3115374400 / 3115 3744 00 with Atlas Copco/Epiroc rock drill and drifter families.

Commonly listed drifter and rock drill families

Several parts listings connect this bushing to COP-series drifters and related rock drill assemblies, including:

. COP1640, COP1838, COP1840, COP2160EX, COP2540EX, COP2560EX (as listed on model-fit product pages) 
. COP1838HD (shown as the category/fit context on a product listing) 
. COP1838HD / COP1838ME / COP1838MUX and COP1840, plus COP1638 variants and COP1640 (shown as compatible drifter models on a parts page)

Commonly listed carrier / rig families

Some catalogs and product pages list broader machine families where the part number appears in machine-and-drifter spare parts contexts, such as:

. Boomer 281, Boomer S1D, Boltec variants, and Roc/FlexiRoc/SmartRoc/PowerRoc families (listed on a machine-and-drifter spare parts page)

Use this list as practical guidance for discovery and SEO. For purchasing accuracy, the part number match is the priority—3115374400 and 3115 3744 00—and you should confirm against the equipment manual or your removed part.

Key advantages of the 3115374400 BUSHING ATLAS COPCO

Stable fit where vibration is always trying to loosen everything

The 3115374400 BUSHING ATLAS COPCO is built to maintain a stable press-fit and controlled internal clearance. That stability reduces chatter, protects housings, and supports consistent motion.

Bronze-lined wear surface for controlled friction

A bronze-lined interface typically offers strong anti-scuff behavior compared with pure steel-on-steel contact. In practice, the 3115374400 BUSHING ATLAS COPCO helps reduce:

. Scoring
. Heat spikes
. Surface tearing under contaminated lubrication
. Rapid clearance growth

Lubrication groove design for longer service intervals

The internal grooves visible in the images are purposeful. The 3115374400 BUSHING ATLAS COPCO uses groove volume to hold lubricant where the load is highest, improving film stability during heavy cycles.

Better protection for high-value assemblies

A bushing is often cheaper and faster to replace than the assemblies it protects. Replacing the 3115374400 BUSHING ATLAS COPCO at the right time can prevent accelerated wear on mating components.

Technical details and practical specifications (buyer-focused)

Exact dimensions can vary by application and are best confirmed by manual or measurement. But you can publish practical, procurement-ready information that helps customers buy with confidence.

Part numbers used in search and procurement

. Primary: 3115374400
. Alternate format: 3115 3744 00
. Hyphen format: 3115-3744-00

Part type

. Ring bushing / liner bushing (steel-backed, bronze-lined style based on images)

Typical application environment

. High vibration
. Dust and abrasive fines
. Intermittent shock load
. Temperature cycling
. Grease or oil film lubrication (depending on assembly)

Weight (KG)

Published weights can differ across listings. One product page lists the 3115374400 BUSHING ATLAS COPCO at approximately 1.20 kg. 3GEN Export
Some catalogs list substantially lower values (for example, 0.15 kg on a model-specific listing).

For your product page, a safe and commonly published value to display is:

. Approx. weight: 1.20 kg 3GEN Export

If you want, I can also format this as “Net weight (approx.)” vs “Shipping weight (approx.)” once you confirm which weight your warehouse uses for listings.

How the 3115374400 BUSHING ATLAS COPCO fails (and how to spot it early)

Most bushing failures are not dramatic at first—they are subtle. The problem is that subtle bushing wear changes alignment, and alignment changes everything.

Early-stage symptoms

. Slight increase in vibration during rotation or load changes
. Grease becoming darker faster than usual
. Minor noise increase during engagement
. Heat rise around the housing area after long cycles
. Increased clearance detectable during inspection

Mid-stage symptoms

. Noticeable play at the interface
. Metal particles present in lubrication points
. Uneven wear marks on mating surfaces
. Faster wear on seals or nearby bearing elements

Late-stage symptoms

. Loud mechanical noise
. Unstable operation under load
. Risk of housing damage due to movement and impact
. Downtime becomes unavoidable

Replacing the 3115374400 BUSHING ATLAS COPCO proactively is usually the most cost-efficient decision—because the bushing is designed to be replaced before the parent assembly pays the price.

Installation guidelines for the 3115374400 BUSHING ATLAS COPCO

A precision bushing does not like shortcuts. Small mistakes can cause early wear, especially in drilling conditions.

Before installation

. Clean the housing bore thoroughly (remove rust, old grease, debris)
. Inspect the bore for scoring or out-of-round conditions
. Check the shaft or mating part for wear ridges
. Confirm lubrication passages are open
. Verify the correct orientation if grooves must align with a feed hole

During installation

. Use correct press tools to avoid distortion
. Do not strike the bushing directly on the bronze surface
. Keep the bushing square to the bore during pressing
. Apply assembly lubricant as required by your service method
. Confirm seating depth is correct and uniform

After installation

. Confirm smooth movement with manual rotation where applicable
. Lubricate immediately per service standard
. Monitor the first work cycle for abnormal heat or noise
. Re-check lubrication flow and contamination entry points

If the previous 3115374400 BUSHING ATLAS COPCO failed due to contamination, installing a new one without fixing seals, wipers, or lubrication practices can shorten service life dramatically.

Maintenance tips to maximize service life

The 3115374400 BUSHING ATLAS COPCO will last longest when friction remains controlled and contamination stays out.

Recommended maintenance habits

. Use the correct lubricant grade for your environment
. Avoid mixing grease types without flushing
. Keep lubrication intervals consistent under heavy duty cycles
. Inspect seals and wipers—these often decide bushing lifespan
. Watch for early vibration changes and investigate immediately
. Track wear rates if you operate multiple rigs (fleet learning saves money)

In rock drilling, lubrication is not only about slipperiness—it is about protecting surfaces from abrasive particles that want to act like grinding compound.

Compatibility guide for website listing (SEO + buyer clarity)

Below is a clean, buyer-friendly compatibility format you can publish. It is based on model associations shown across multiple parts listings and model-fit pages.

Commonly listed compatible drifter / rock drill models

. COP1640 
. COP1838 (including COP1838HD / COP1838ME / COP1838MUX) 
. COP1840 (including COP1840HE on some listings) 
. COP2160EX
. COP2540EX
. COP2560EX

Commonly listed compatible rig families (where shown in machine spare parts contexts)

. Boomer 281, Boomer S1D 
. Boltec variants 
. Roc and FlexiRoc families, SmartRoc and PowerRoc families

For customer confidence, you can add a simple note on your page:

. “Match by part number 3115374400 / 3115 3744 00. Confirm fit by manual or serial range.”

That keeps the listing accurate and reduces returns.

Why buy the 3115374400 BUSHING ATLAS COPCO from 3GEN Export

Uptime is a logistics problem as much as it is a mechanical one. 3GEN Export supports drilling operations by providing:

. OEM-quality supply standards suitable for heavy-duty drilling conditions
. Consistent part-number matching for procurement teams
. Export-ready packaging and documentation support
. Worldwide delivery in 5 working days

When a rig is waiting, every day feels expensive. The 3115374400 BUSHING ATLAS COPCO is a small part with a big influence on operational continuity—so fast, dependable supply matters.

Quick FAQ (helps Search GPT and improves conversions)

Is 3115374400 the same part as 3115 3744 00?

Yes, these are common alternate formats used in listings for the same bushing part number.

Which models commonly list this bushing?

Listings commonly associate it with COP-series drifters such as COP1640, COP1838, COP1840, and additional families like COP2160EX, COP2540EX, COP2560EX depending on catalog structure.

What is the approximate weight?

A commonly published value is approximately 1.20 kg (some catalogs may show different values). 3GEN Export+1

Manufactured in Turkey, these products are made using the latest technologies and built to meet the highest international standards. Each machine is a high-quality copy of the original, ensuring durability, precision, and performance that you can rely on for modern construction and metalworking projects.