NSKV7020CTDBCP18PA7Super-Precision Angular Contact Ball Bearings – 100 mm ID, 150 mm OD, 24 mm Width, 15° Contact Angle, Open, Back-to-Back Pair, ABEC 7

Product Description

What this part is

NSK V-7020CTDBCP18PA7 super-precision angular contact ball bearings. Bore: 100 mm. Outside diameter: 150 mm. Width: 24 mm each. Series: 70. Open on both faces, straight bore, phenolic outer-ring-guided cage. Supplied as a back-to-back matched pair at a special preload.

Decoding the designation

7020: series 70, bore code 20, 100 mm bore. C: 15° contact angle. T: phenolic cage guided on the outer ring. DB: back-to-back duplex pair. CP18: special preload, NSK code 18. PA7: accuracy class equivalent to ABEC 7 / P4. The leading V and the full order code are carried as manufacturer part-number variants and are searchable in that form.

What these specs mean in practice

Basic dynamic load rating: 95.0 kN per bearing. Basic static load rating: 77.0 kN per bearing. Permissible axial load: 49.0 kN. Effective load centre: 28.7 mm. Limiting speed: 9,200 rpm on grease, 14,000 rpm on oil or oil-air. A back-to-back pair puts its contact lines diverging outward, so the effective support span is wider than the bearing stack and the shaft resists tilting moments. A phenolic outer-ring-guided cage is light and quiet and holds up at high dmn.

Quantity and configuration

Two pieces, 2 Pcs, a factory back-to-back matched pair. Total stack width 48 mm.

Fitting notes

Straight bore, open on both faces. The pair mounts in the orientation marked on the ring faces. Inner rings clamp between a shaft shoulder and a locknut; outer rings seat square in the housing bore and are clamped by the cover. Mass: 1.27 kg per bearing.

Interchange guidance

SKF 7020 CD/P4A and FAG B7020-C-T-P4S are the same 100 x 150 x 24 mm size at 15°. NSK 7020CTDBP8PA7 is the same envelope and arrangement at a different preload code. NSK 7020A5TRDULP4Y is a related size at a 25° contact angle. Searchable forms: V7020CTDBCP18PA7, V-7020 CT DB CP18 PA7, V-7020-CT-DB-CP18-PA7, 7020C.