Duramax BOSS Johnson Naval Brass Cutless Bearing – 1-1/2" Shaft x 2" OD x 6"L
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Duramax BOSS Johnson Naval Brass Cutless Bearing — 1-1/2" Shaft, 2" OD, 6" Long
The Johnson Cutless® Bearing is the marine industry's trusted standard for water-lubricated shaft support. This BOSS model is sized for 1-1/2" diameter shafts and features a precision-machined naval brass outer shell bonded to oil- and chemical-resistant nitrile rubber. Water flows through the fluted rubber bore to continuously lubricate and cool the bearing, eliminating the need for grease and reducing long-term maintenance.
Best Use Cases
- Strut-mounted shaft support on inboard powerboats and sailboats with 1-1/2" propeller shafts
- Stern tube installations requiring a 2" OD housing bore
- Rudder-stock and pintle bushing applications where water lubrication is preferred
- Repower or refit projects upgrading worn or corroded shaft bearings
Key Features
- Shaft diameter: 1-1/2"
- Outer diameter: 2"
- Length: 6"
- Shell material: Naval brass — machined and polished for easy press-fit installation
- Bore material: Nitrile rubber — oil- and chemical-resistant, securely bonded to shell
- Lubrication: Water-lubricated via fluted rubber bore — no grease required
- Mounting: Compatible with strut, stern tube, rudder-stock, and pintle applications
Parts Desk Insights
The BOSS is the go-to cutless bearing for mid-size inboard boats running 1-1/2" shafts — one of the most common shaft sizes in the 25–40 ft powerboat and sailboat range. The 6" length provides excellent shaft support and is well-suited to longer strut barrels or stern tube installations. Naval brass shells press in cleanly and hold alignment better than rubber-only designs. If you're sizing down, also consider the Duramax BITE (1-1/4" x 2" OD x 5"L) or the Duramax BIRD (1-1/4" x 1-3/4" OD x 5"L) for smaller shaft applications.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.