Husqvarna X-Tough RSN Chainsaw Bar 3/8" Pitch Replaceable Sprocket Nose
The Husqvarna X-Tough RSN (Replaceable Sprocket Nose) Chainsaw Bar is Husqvarna’s toughest sprocket nose bar, built for demanding professional felling and bucking applications. The solid steel body features increased rail hardness and an optimized oil hole to reduce maintenance effort while maintaining high productivity. The load is transferred to a high-quality roller bearing with supporting shields, reducing friction and extending service life. The robust, patented RSN shape and triple-rivet mount deliver exceptional durability and resistance to abuse. Replacement tip available as a spare part.
Available Configurations
- 20" — .050" gauge, 3/8" pitch
- 20" — .058" gauge, 3/8" pitch
- 24" — .050" gauge, 3/8" pitch
- 24" — .058" gauge, 3/8" pitch
- 28" — .058" gauge, 3/8" pitch
Key Features
- Solid Steel Body — Maximum rigidity for demanding professional use
- Increased Rail Hardness — Extended bar life under heavy use and abrasive conditions
- Replaceable Sprocket Nose (RSN) — Replace the tip when worn without replacing the full bar, reducing long-term cost
- High-Quality Roller Bearing with Supporting Shields — Less friction, smoother chain rotation, and prolonged service life
- Triple-Rivet Mount — Robust, patented design for superior durability and abuse resistance
- Optimized Oil Hole — Consistent lubrication reduces maintenance and wear
- 3/8" Pitch — Professional pitch for high-output chainsaw applications
Compatible Chainsaws
The Husqvarna X-Tough RSN bar is compatible with the following Husqvarna chainsaw models (verify pitch, gauge, and drive link count for your specific model before ordering):
- 365 X-Torq
- 372 XP®
- 372 XP® X-TORQ
- 390 XP®
- 395 XP®
- 565
- 572 XP®
- 572 XP® G
- 592 XP®
Specifications
- Brand: Husqvarna
- Bar Type: X-Tough RSN (Replaceable Sprocket Nose)
- Body Material: Solid Steel
- Pitch: 3/8"
- Gauge Options: .050" or .058"
- Available Lengths: 20", 24", 28"
- Mount: Triple-Rivet
- Nose: Replaceable Sprocket Nose (RSN) with roller bearing
- Country of Origin: Sweden
Frequently Asked Questions
What does RSN (Replaceable Sprocket Nose) mean?
RSN stands for Replaceable Sprocket Nose — the bar tip assembly including the sprocket and roller bearing can be replaced separately when worn, without replacing the entire bar. This significantly reduces the cost of ownership on a premium solid steel bar, as the nose typically wears before the body in professional use.
What is the difference between .050" and .058" gauge?
Gauge refers to the thickness of the drive links on the chain and the corresponding groove width in the bar. .058" gauge bars require .058" gauge chains and are generally used on higher-displacement, more powerful saws where greater chain stability under load is needed. .050" gauge is common on mid-range professional saws. Always match the chain gauge to the bar gauge exactly.
How do I know which length and gauge combination is right for my saw?
Check your chainsaw owner’s manual for the recommended bar length range, pitch, gauge, and drive link count. The bar must match all four parameters for safe, correct operation. Contact us if you need help identifying the right configuration for your specific model.
Is the replacement tip available separately?
Yes — the RSN tip (sprocket nose assembly) is available as a spare part. Contact us for current availability of replacement nose assemblies for your bar configuration.