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Spool Bearing Differences – Core vs Edge vs Apex Compared
Spool Bearing Differences – Core vs Edge vs Apex Compared
Our spool bearings differ in material composition, ball quality, cage system, ABEC precision class, and optimal tuning for your casting weight. Each class is designed for a specific application. The decisive factor is not just the ABEC rating, but the entire construction and its tuning to your setup.
Apex – ABEC 9 with S30 Ceramic Balls and PEEK Ribbon Cage
Apex bearings are our uncompromising high-performance option. They consist of ABEC 9 precision-made stainless steel rings, equipped with S30 ceramic balls and a PEEK (Polyether Ether Ketone) ribbon cage.
S30 ceramic balls enable extremely low friction and very high speeds. The PEEK ribbon retainer is a high-performance cage that ensures stability, temperature resistance, and reliable ball guidance at very high speeds.
- ABEC 9 precision standard
- S30 ceramic balls for maximum rotational pleasure
- PEEK ribbon cage for stability at high speeds & minimal friction
- Very fast spool acceleration
Thanks to this design, the spool of your baitcasting reel starts very quickly and reaches extremely high speeds, especially in the lower casting weight range.
Sweet spot casting weight: 2 to 60 g
If you mostly fish well above this range, a slightly more robustly tuned design makes sense. In this case, switching to the Edge class is recommended.
Edge – ABEC 9 Hybrid Ceramic Bearings with S25 Balls
Edge bearings are also based on an ABEC 9 precision standard. They use S25 ceramic balls combined with precision-made steel rings and a Japanese ribbon retainer.
Compared to Apex, Edge is tuned to be a bit more versatile. The design offers high speed capability combined with more mechanical stability for a broader range of applications.
- ABEC 9 precision standard
- S25 ceramic balls for high speeds
- Japanese ribbon retainer for stable ball guidance
- Balanced performance tuning
Edge bearings are available in two variants:
- With Orange Seal: Additional protection against dirt and moisture
- Without Seal: Minimal resistance for maximum rotational pleasure
Sweet spot casting weight: 5 to 100 g
If your setup regularly exceeds this range significantly, the Core class is the technically more suitable choice.
Core – ABEC 5 Stainless Steel Bearings for High Load
Core bearings consist of ABEC 5 precision-made stainless steel bearings with a stable ball and cage construction. They are designed for durability, continuous use, and consistent performance.
ABEC 5 here does not mean lower quality but a more robust tuning compared to high-speed hybrid ceramic bearings.
- ABEC 5 precision standard
- Robust stainless steel construction
- High mechanical load capacity
- Consistent performance under load
Sweet spot casting weight: 8 g to over 200 g
The Casting Weight Decides
All our spool bearings are high-quality manufactured and designed for high speeds. The crucial difference lies in the tuning to your actual lure spectrum.
Those who mostly fish very light lures benefit from maximum startup dynamics. Those covering a broader spectrum should choose a more versatile tuning. Those who consistently cast heavy should rely on robust stability.
The best performance arises when bearing class and casting weight match.
RL-TNG Complete Ball Bearing Tuning Kit for Daiwa 25 Steez Limited CT SV TW 70
RL-TNG Complete Ball Bearing Tuning Kit for Daiwa 25 Steez Limited CT SV TW 70
Complete Bearing Tuning Kit for the Daiwa 25 Steez Limited CT SV TW 70: 11 bearings, 3 classes, each position equipped with the class needed there. Tune your Steez Limited so it does exactly what it was built for: extremely low trajectory, full free spool, direct feel all the way to the crank knob.
Construction and Material
The spool contains two APEX Spool Bearings with S30 Hybrid Ceramic Balls at ABEC 9 level, the core of this upgrade. They deliver the most noticeable performance gain on the new Steez Limited: extremely fast spool start, maximum free spool, perfectly matched to the 30 mm G1-Duralumin SV Spool. On the wormshaft, two EDGE OPEN Bearings with S25 Hybrid Ceramic Balls replace the factory stainless steel bearings. The pinion gear gets an EDGE OPEN Bearing without seal for smoother operation in the gear. At the gear support position sits another EDGE bearing for more direct power transmission, and at the drive gear support an EDGE OPEN for stable support in the drive. The four knob positions run on CORE with stainless steel balls, where stability is more important than speed.
Scope of Delivery
- 2× APEX Spool Bearings with S30 Hybrid Ceramic for extremely fast spool start and maximum free spool
- 2× EDGE OPEN Wormshaft Bearings with S25 Hybrid Ceramic, replacing the factory plastic bushing
- 1× EDGE OPEN Pinion Gear Bearing without seal for smoother operation in the gear
- 1× EDGE OPEN Gear Support Bearing for more direct power transmission
- 1× EDGE OPEN Drive Gear Support Bearing for stable support in the drive
- 4× CORE Knob Bearings for play-free, controlled cranking
Performance Characteristics
Noticeable on the first cast. The CT SV spool starts earlier, runs longer, responds to every impulse from the rod tip, and extracts additional casting distance from the Steez, especially with lures under 5 grams. Wormshaft and the Hyperdrive Digigear Gearbox run quieter, the knob turns without noticeable play.
Recommended Use
Classic light to finesse range of 3 to 14 g: small cranks, wakebaits, mini wobblers, drop shot baitcasters, Neko rigs, small Texas rigs, and bait finesse applications for trout perch, perch, zander, and trout.
Good to Know
Ceramic spool bearings run somewhat louder due to the material compared to pure stainless steel bearings; this is due to the higher hardness of the ceramic balls and is not a quality defect but a material property. With the appropriate spool bearing oil, the running noise can be noticeably reduced.
Compatibility
Fits both versions of the Daiwa 25 Steez Limited CT SV TW 70: 70 XH (right hand) and 70 XHL (left hand). Both hand versions are technically identical and use the same bearing layout. The complete model overview is available under the Compatible Baitcaster tab.