NSK7019CTYDBCPA7Super Precision Angular Contact Ball Bearing Back-to-Back Pair – 95 mm ID, 145 mm OD, 24 mm Width Each, Open, 15° Contact Angle, PA7, 2 Pcs

Product Description

What this part is

NSK 7019CTYDBC7PA7 is a back-to-back matched pair of super precision single-row angular contact ball bearings. Series: 7000, ISO 70 dimension series. Bore: 95 mm. Outside Diameter: 145 mm. Width: 24 mm per bearing. Contact Angle: 15°. Precision Class: PA7. Cage: ball-guided. Closure: open. Searchable forms of the designation are 7019CTYDBC7PA7, 7019 CTY DB C7 PA7, 7019C-TY-DBC-PA7 and 7019CTYDBCPA7.

Decoding the designation

Contact Angle: 15°. Arrangement: DB, back-to-back. Cage: ball-guided. Precision Class: PA7, an NSK special accuracy class.

What these specs mean in practice

A back-to-back pair carries thrust in both directions and gives a wide effective load span, which resists moment loads on a spindle. A 15° contact angle favours speed and radial capacity over thrust capacity. PA7 accuracy lowers runout and vibration in a spindle.

Load ratings and speed

Dynamic Load Rating: 71.5 kN per bearing. Static Load Rating: 72.5 kN per bearing. Limiting Speed: 12,000 rpm. Maximum operating temperature: 100 °C.

Quantity and configuration

Unit Quantity: 2 Pcs. One row of balls per bearing. Total width of the pair mounted back-to-back: 48 mm.

Fitting notes

Bore form: straight. The pair is mounted as supplied, marked faces together, in the back-to-back orientation. Preload is set at manufacture, so no clearance adjustment applies at assembly.

Interchange guidance

SKF 7019 CD/P4A is the equivalent 15° super precision bearing. FAG B7019-C-T-P4S-DUL and RHP 7019CTDULP4 are equivalent matched pairs. Fafnir 2MM9119WI-DUL is the equivalent inch-market designation. Country of Origin: Japan.