Choosing the right bearing for your build starts with a question: are you moving something in a straight line, spinning a shaft, or guiding a cam roller? In the world of bearings and power transmission, the answer determines whether you need a linear bearing, a radial ball bearing, or a cam follower. This guide compares four distinct options across that range.
Quick Take
At a glance: The LM25UU linear bearing set is the lowest-priced option at USD 39.95. The SS6206-2RS bearing pack costs USD 97.70. The RBC S48L cam follower lot is priced at USD 40.00. The mixed random bearing lot is USD 135.00.
Listed Price Comparison
| Option | Listed Price | Value Bar |
|---|---|---|
| Industrial LM25UU Linear Bearings, 25x40x59mm, 12 Pieces CNC Compatible | USD 39.95 | |
| Industrial Roller Bearings - Stainless Sealed SS6206-2RS 6200 ABEC (10/pack | USD 97.70 | |
| RBC BearingCompany Industrial Cam Follower Roller Bearings, PN# S48L | USD 40.00 | |
| Mixed Random Lot Assortment Various Industrial Bearings Roller Sealed Etc | USD 135.00 |
The value bars show each listed price relative to the highest price in this set.
Decision Matrix
| Product | Best For | Watch Out For |
|---|---|---|
| LM25UU Linear Bearings | Linear-motion projects that need a consistent set of sliding bearings | It's a linear bearing, not a rotating-shaft bearing |
| SS6206-2RS Sealed Roller Bearings | Shaft applications where sealed construction is useful | The pack format may exceed a single repair's needs |
| RBC S48L Cam Followers | Cam-action loads with flat roller contact | Sold as a lot of six with opened boxes and as-is condition |
| Mixed Random Bearing Lot | Stocking a shop with a random assortment of roller and sealed bearings | The random mix makes it hard to plan around exact part numbers |
Product Notes
Industrial LM25UU Linear Bearings, 25x40x59mm, 12 Pieces CNC Compatible
If your machine uses a linear rail, these LM25UU bearings are sized at 25mm bore, 40mm outer diameter, and 59mm length. They're built for low friction and high rigidity, with a focus on smooth, precise motion. The set gives you enough for multi-axis slide assemblies. It's also priced attractively for a project that needs a full set. The product includes a one-year manufacturer warranty. Note that this is a linear bearing for straight sliding motion, not rotating shaft support, so keep that in mind before choosing.
Industrial Roller Bearings - Stainless Sealed SS6206-2RS 6200 ABEC (10/pack
This stainless steel sealed ball bearing pack comes from the 6200 series and carries the model number SS6206-2RS. Specifications include a 30mm bore, 62mm outer diameter, 16mm width, and an ABEC 1 rating. The double rubber seal helps keep contamination out, and the stainless construction suits environments where corrosion resistance matters. If you need a set of rotating-shaft bearings rather than a single replacement, this pack fits. It's priced in the upper-middle of this group, so it's not the lowest upfront cost, but you're getting multiple units.
RBC BearingCompany Industrial Cam Follower Roller Bearings, PN# S48L
Part number S48L identifies these RBC cam follower roller bearings. They have a flat roller shape with a 1.5000-inch roller diameter and a 1.5000-inch stud diameter, making them suitable for cam-follower applications. This is a lot of six, so you get multiple units for a multi-position setup. It's near the low end of the price range, which is useful if you need cam followers and want to avoid the bigger assortment cost. The original boxes were opened, and the parts are described as as-is, so this is an open-box purchase.
Mixed Random Lot Assortment Various Industrial Bearings Roller Sealed Etc
This is an open-box assortment of various industrial bearings, including roller and sealed types. The mixed random lot label indicates the content is not itemized. If you want to keep a variety of bearings on hand in a workshop, this can serve as a grab bag. It's a bigger investment than the other options here. The limitation is clear: you won't know the exact part numbers until the lot arrives. This option makes sense for general stocking, not for a specific repair where you need a known size.
Final Recommendation by Use Case
For linear-motion builds, the LM25UU linear bearings give you a uniform stack of linear bearings at the lowest listed price. For rotating shafts needing sealed stainless bearings, the SS6206-2RS pack provides multiple sealed 6200-series units with an ABEC 1 rating. For cam-follower work, the RBC S48L lot puts flat-roller cam followers in your hands without stepping up to the top price. For a general workshop assortment, the mixed random lot delivers a grab bag of roller and sealed bearings, but only if you can live with the random mix.
The right bearing depends on the motion you're trying to achieve. Match the type to the job, use the listed prices to set expectations, and you'll land on the option that fits your build.
