NSKAngular Contact Ball Bearing Matched Pair – 17 mm Bore, 35 mm OD, 10 mm Width, 15° Contact Angle, Phenolic Cage, Medium Preload, P4Y Precision

Product Description

What this part is: This is an NSK 7003CTRDUMP4Y super precision angular contact ball bearing, supplied as a factory matched duplex universal pair. Bore: 17 mm. Outside Diameter: 35 mm. Overall Width: 10 mm per bearing. Total Width: 20 mm for the mounted pair. Rolling Elements: Ball. Number Of Rows: 1 per bearing. Closure Type: Open. Bore Type: Straight. Material: High Carbon Chrome Steel. Lubricant: Grease or oil. Design Units: Metric. Item weight: 0.039 kg per bearing. Decoding the designation: 7003 — the ISO 7003 boundary size, 17 x 35 x 10 mm. C — a 15° contact angle. TR — an outer-ring-guided machined phenolic cage, rated to 120 °C. DU — duplex universal pairing, mountable back-to-back, face-to-face or in tandem. M — medium preload, 69 N across the pair. P4Y — an NSK special accuracy class held tighter than P4. What these specs mean in practice: Contact Angle: 15°. Dynamic Load Rating: 8.35 kN. Static Load Rating: 3.80 kN. Permissible Axial Load: 2.85 kN. Limiting Speed: 44,300 rpm grease, 67,400 rpm oil or oil-air. Precision Class: P4Y. Factor f0: 14.5. The 15° contact angle favours speed and radial stiffness, and the machined phenolic cage rides on the outer ring land for stable guidance through the full speed range. Recommended grease quantity is 0.22 g per bearing. Mounting data: Shaft Fillet Radius r min: 0.3 mm. Inner Ring Front Face Fillet r1 min: 0.15 mm. Shaft Abutment Diameter da min: 19.5 mm. Housing Abutment Diameter Da max: 32.5 mm. Housing Bore Shoulder Db max: 33.8 mm. Shaft Fillet ra max: 0.3 mm. Housing Fillet rb max: 0.15 mm. Effective Load Centre a: 8.5 mm, measured from the bearing face. Quantity and configuration: Unit Quantity: 2 Pcs, a universally matched set. Preload: Medium, 69 N for a DB or DF pair. Axial Rigidity: 31 N/µm at medium preload. Preload values across the class run from EL at 15 N through L at 30 N to H at 156 N; this set is supplied at the M value. Arrangement: back-to-back, face-to-face or tandem. Interchange guidance: Part Number: 7003CTRDUMP4Y. Base Number: 7003. Series: 7000. The designation is also written 7003-C-TR-DUM-P4Y and 7003 C TR DUM P4Y across catalogues and distributor systems, all referring to the same 17 x 35 x 10 mm 15° super precision pair.