FR2-5 1/8″ x 5/16″ x 9/64″ Flanged M...
Inch-series flanged bearing with chrome steel. Available in open, ZZ (double shielded), and 2RS (double sealed) configurations. The integrated flange simplifies mounting and eliminates the need for housing shoulders. Ideal for 3D printers, hobby CNC machines, robotics, small motors, conveyors, instrumentation, and compact automation equipment.
Key Specifications:
Model: FR2-5
Bearing Type: Deep groove ball bearing, single row, flanged
Inner Diameter (d): 1/8 in (3.175 mm)
Outer Diameter (D): 5/16 in (7.938 mm)
Width (B) – Open: 0.1094 in (2.779 mm)
Width (B) – Shielded/Sealed: 9/64 in (3.571 mm)
Flange Diameter (Df): 0.359 in (9.119 mm)
Flange Width (Bf): 0.023 in (0.584 mm)
Mass: 0.6–0.81 g
Material: Chrome steel (GCr15) or stainless steel (AISI 440C)
Shielding: (ZZ) Double metal shields
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R188 ZZ 1/4″ x 1/2″ x 3/16″ Chrome S...
R188ZZ Miniature Bearing – Precision-machined for high-speed, low-noise operation. Double metal shields retain lubrication and block contaminants. ABEC 1 precision, 40,000 RPM grease speed. Ideal for skateboards, inline skates, RC models, yo-yos, 3D printers, and hobby robotics.
Model: R188ZZ
Type: Deep groove ball bearing (inch series)
Inner Diameter (d): 6.35 mm (1/4 in)
Outer Diameter (D): 12.70 mm (1/2 in)
Width (B): 4.762 mm (3/16 in)
Mass: Approx. 2.24 g
Material: Chrome steel (GCr15)
Shielding: Double metal shields (ZZ)
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