NTN6906ZZDeep Groove Ball Bearing – Straight Bore, 30 mm ID, 47 mm OD, 9 mm Width, Steel Shields Both Sides, 69 Thin Section Series

Product Description

What this part is: NTN 6906ZZ single-row deep groove ball bearing, shielded both sides. Series: 6900 (69 thin section). Bore: 30 mm. Outside Diameter: 47 mm. Width: 9 mm. Bore Type: Straight. Rolling Elements: Ball. Closure Type: Steel shields both sides. GTIN: 4547359006742. Decoding the designation: 6906 — NTN’s number for the 69 series, 30 x 47 x 9 mm. The same size is catalogued elsewhere as 61906. ZZ — pressed steel shields on both faces. What these specs mean in practice: Dynamic Load Rating: 8,000 N (8.0 kN, 1,790 lbf). Static Load Rating: 5,000 N (5.0 kN, 1,120 lbf). Limiting Speed: 14,000 r/min on grease. Cage Material: Steel. Cage Type: Pressed. Chamfer r: 0.3 mm. Chamfer r1: 0.3 mm. Mass: 0.049 kg (0.108 lb). The 69 series is the thin-section deep groove family: a 30 mm bore inside a 47 mm outside diameter only 9 mm wide, which is what puts it in gearbox end covers, actuator heads, robot joints and encoder housings. Steel shields hold the factory grease in and coarse contamination out with no rubbing contact, so almost the full open-bearing speed capability is kept. Mounting data: Shaft abutment diameter da: 32 mm minimum. Housing abutment diameter Da: 45 mm maximum. Shaft or housing fillet radius ras: 0.3 mm maximum. Quantity and configuration: Unit Quantity: 1 Pc. Interchange guidance: Cross-references: SKF 61906-2Z, FAG 61906-2Z, NSK 6906ZZ, Koyo 6906ZZ. Searchable variants of the designation: 6906ZZ, 6906 ZZ, 6906Z, 6906-2Z, 61906-2Z, 6906ZZ2A.