FR144 Miniature Flanged Deep Groove ...
FR144 Miniature Flange Ball Bearing – 3.175x6.35x2.779mm (1/8"x1/4"x7/64"). Choose from chrome steel (GCr15), stainless steel, or hybrid ceramic (440C rings + Si?N? balls) construction. The built-in flange simplifies mounting, eliminates the need for additional housing shoulders, and ensures reliable axial positioning.
Inner Diameter (d): 3.175 mm (1/8 in)
Outer Diameter (D): 6.35 mm (1/4 in)
Width (B): 2.779 mm (7/64 in)
Number of Balls (z): 7
Grease Limiting Speed: 67,000 RPM
Oil Limiting Speed: 80,000 RPM
Read more
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
Read more
High Speed 1/4″x5/8″x0.1...
R4 is specifically designed to seamlessly integrate with mechanical equipment manufactured according to imperial (inch) dimensions, and is suitable for markets that follow imperial standards.
Key Specifications:
Read more
- Bore Diameter (d): 1/4 inch (0.2500")
- Outer Diameter (D): 0.625 inch (5/8")
- Width (B): 0.196 inch
- Dynamic & Static Load Ratings: Engineered for reliable performance in its size class. The R4 offers a balanced dynamic (Cr) and static (Cor) load capacity suitable for its intended applications.
- Speed Ratings: Capable of moderate to high rotational speeds, with specific limits depending on the lubrication condition and operational environment
- Internal Clearance: Typically supplied with a standard radial internal clearance (C0/CN) suitable for most common applications. Other clearance groups can be specified for unique thermal or fit requirements.
- Sealing/Shielding Options: Supplied as open, or with metal shields (ZZ) or rubber seals (2RS) to retain grease and exclude contaminants.
KA020XP0 2 x 2.5 x 0.25 inches Robot...
KA020XP0 Thin Section Bearing-Chrome steel construction, brass cage, open design, ABEC-1 precision. Ideal for robotics, aerospace actuators, medical imaging devices, rotary tables and precision automation where space and weight are critical constraints.
Key Specifications:
Model: KA020XP0
Bore Diameter (d): 2.000 inches / 50.800 mm
Outside Diameter (D): 2.500 inches / 63.500 mm
Width (B): 0.250 inches / 6.350 mm
Cross?section (constant): 0.25 × 0.25 inches
Number of rows: Single
Contact angle: 30°
Ring & Ball Material: Chrome bearing steel (AISI 52100 / GCr15)
Cage Material: Brass (standard formed ring “snap?over” type)
Seal Type: Open (no seals)
Precision Grade: ABEC?1 (P0) – higher grades available on request
Weight: 0.048kg
Read more
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)
Read more