English Version

Ball Bearing 4x8x3 mm (684 ZZ) – Double Shielded

Looking for a high-quality, compact ball bearing for precision applications? This mini ball bearing

with dimensions 4x8x3 mm (inner diameter x outer diameter x width) is made from durable chrome

steel, offering smooth performance at high rotational speeds.

Thanks to the double metal shield (ZZ / 2Z), the bearing is protected on both sides against dust,

dirt, and debris, keeping the grease inside. This ensures a long service life and minimal maintenance.

Applications

• RC & Scale Models: Ideal for RC cars, drones, helicopters, and model trains.

• Precision Engineering: Suitable for 3D printers, small electric motors, and robotics.

• Fine Mechanics: Perfect for delicate tools and guide rollers.

Specifications

• Type: 684 ZZ

• Inner Diameter (d): 4 mm

• Outer Diameter (D): 8 mm

• Width (B): 3 mm

• Shielding: ZZ (metal shields on both sides)

• Material: Chrome Steel (GCr15)

• Lubrication: Pre-lubricated with high-grade grease

Fast shipping and ready for immediate use in your projects!

Suitable for the following Tamiya models:

-TA-04

-TA-05

- TA05-IFS

- TA05-IFS-R (49491)

- TA05-VDF

-TA-06

- TA-07 Pro (58636)

- TB-04 (58580)

- TB-04 Pro (84339)

- TB-04 Pro II (84382)

- TB-04R (84412)

- M-07 Concept (58647)

- M-08 Concept (58669)

- FF-03

- FF-03R

- XV-01 (58528)

- XV-01 Pro (58526)

- XV-01T (58552)

- XV-01TC Pro (58558)

- Rock Buster TLT-1

- Max Climber TLT-1

- TRF415 (58320)

- TRF415MS (49349)

- TRF415MSX (49381)

- TRF415MSX Marc Rheinard Edition (MRE) (49394)

- TRF415MSXX (49419)

- TRF415MSXX Marc Rheinard Edition 2007 (MRE) (42104)

- TRF416X (42162)

- TRF417 (42184)

- TRF417X (42205)

- TRF417V5 (42240)

- TRF421 (42384)

- BBX Buggy BB-01 Chassis (58719)

- DB-01 chassis (Durga, Baldre)

- DB-02 chassis (Leonis)

- DN-01 (Zahhak)

- Super Avante TD4 (58696)

- Astute TD2 (58697)

- TRF201 (42167)

- TRF501X (49401)

- TRF501X World Edition (42105)

- TRF503 (42275)

- TRF511 (42139)

- TGM-02 Terra Crusher and Wild Commando

- TGM-03 TNX

- TGM-04 TNX 5.2R

- NDF-01 (e.g. Nitro Force, Nitro Thunder and Nitro Blaster)

- NDF-01T (Nitro Crusher)

- TNS-B15 Mighty Ballista

- TNS-T18 RevStorm