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Bearing 6700ZZ, 10x15x4mm, with ZZ metal shields, radial ball bearing
Compact radial bearing for precise guiding and smooth rotation in industrial and electronic applications, fitted with ZZ-type protection against dust and impurities, robust construction for durability, low friction and stable operation at high speeds. Dimensions 15 x 10 x 4 mm for easy mounting in tight spaces.
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The 6700ZZ bearing is a single-row radial ball bearing from the thin-section series, fitted with a metal shield on each side. It takes radial loads and allows smooth rotation of a 10 mm shaft in a housing with a 15 mm bore. It is suitable for 3D printers, guide rollers and pulleys, robot mechanisms, fans, small motors and camera mechanisms, that is, for projects where the space along the shaft is limited.
The bearing has an inner diameter of 10 mm, an outer diameter of 15 mm and a thickness of 4 mm. The radial thickness is 2.5 mm, and the tolerance of the inner and outer diameters is from -0.008 mm to 0 mm, so the surrounding parts must be made just as precisely. The ZZ metal shields protect the balls from large particles and retain the grease introduced at manufacture. They do not seal completely, so the bearing is not suitable for areas with water or fine dust without additional protection in the housing.
Main features include the inner and outer rings made of chrome steel, the steel balls kept at equal distance by the cage, the two ZZ metal shields and factory grease lubrication. The bearing is not powered and has no electrical connections, it is mounted exclusively mechanically, by pressing onto the shaft and into the housing.
Specifications:
Type: Single-row radial ball bearing
Inner diameter: 10 mm
Outer diameter: 15 mm
Thickness: 4 mm
Sealing: ZZ, metal shields on both sides
Material: Chrome steel
Inner and outer diameter tolerance: from -0.008 mm to 0 mm
Dimensions: 10 x 15 x 4 mm
Usage:
Clean the shaft and the housing bore of chips, dust and machining or printing residue.
Check with a caliper that the shaft is 10 mm and the bore is 15 mm, and that the seat is at least 4 mm deep.
If the parts are 3D printed, make a test piece first, because the material shrinks and the bore usually comes out smaller than in the model.
Press the bearing straight, without tilting it, using a tool that touches only the ring that is press-fitted. When mounting on the shaft, press on the inner ring, and when mounting in the housing, press on the outer ring.
Never press through the metal shield or through the other ring, because the force passes through the balls and can damage the raceways.
For even pressing, use a piece of tube with a suitable diameter, or a nut and a long bolt, tightened gradually.
Support the bearing on a shoulder of the shaft or housing, on the side of the press-fitted ring. The shoulder diameter must be greater than 10 mm and smaller than 15 mm, so that it does not touch the metal shield and the other ring.
Secure the bearing axially along the shaft with a circlip, a nut or a spacer, without tightening the inner ring too much.
Turn the part by hand after mounting. It should rotate smoothly, without jamming, side play or friction noise.
Do not expose the bearing to water, moisture or fine dust without protection in the housing, because the metal shields do not seal completely.
- Dimensions
- 10 x 15 x 4 mm
- Model
- 6700ZZ
- Material
- Chrome steel
- Type
- Radial ball bearing, single row
- Thickness
- 4 mm
- Outer diameter
- 15 mm
- Inner diameter
- 10 mm
- Tolerance
- from -0.008 mm to 0 mm
Produs destinat utilizarii in proiecte electronice, automatizari, prototipare, educatie si cercetare.
Produsul trebuie utilizat numai conform specificatiilor tehnice mentionate in descriere si/sau in documentatia produsului.
Avertismente generale de siguranta:
Nu utilizati produsul la tensiuni, curenti sau temperaturi peste valorile specificate.
Montajul si conectarea trebuie realizate de persoane cu cunostinte tehnice minime in domeniul electric/electronic.
Evitati scurtcircuitele, inversarea polaritatii si conectarea gresita a alimentarii.
Nu lasati produsul alimentat nesupravegheat in timpul testelor.
Produsul nu este jucarie si nu este destinat copiilor.
Pentru modulele electronice, se recomanda utilizarea in carcase, panouri sau montaje protejate, dupa caz.
Identificare produs:
Denumirea produsului, codul/SKU-ul si caracteristicile tehnice sunt mentionate in pagina produsului si/sau pe eticheta ambalajului.
Producator / Importator / Distribuitor:
Sigmanortec S.R.L.
Calea Bucuresti nr. 9, Targu Jiu, Gorj, Romania
E-mail: [email protected]
Website: www.sigmanortec.ro
Persoana responsabila in UE:
Sigmanortec S.R.L.
Calea Bucuresti nr. 9, Targu Jiu, Gorj, Romania
E-mail: [email protected]
Documentatie si siguranta:
Pentru informatii suplimentare, fise tehnice, declaratii de conformitate sau instructiuni, ne puteti contacta la [email protected].
This tutorial presents the 6700ZZ bearing, a passive mechanical part that is not powered and has no electrical connection. It is used to mount a 10 mm shaft into a housing with a 15 mm bore, in 3D printers, guide rollers, pulleys, robot mechanisms, fans and small motors.
The tutorial shows how to check the dimensions, how to mount the bearing correctly and how to check the rotation after mounting.
How it works:
The bearing has an inner ring, an outer ring and a row of steel balls between them, kept at equal distance by a cage. When one ring stays still and the other rotates, the balls roll on the raceways instead of sliding, and friction drops considerably compared to a plain bearing.
The designation 6700 indicates the thin series with an inner diameter of 10 mm, an outer diameter of 15 mm and a width of 4 mm. The ZZ suffix indicates a metal shield on each side. The shields protect the balls from large particles and retain the factory grease, but they do not seal completely, so liquids and fine dust can enter through the gap between the shield and the inner ring.
Dimensions directly affect the design of the surrounding parts. The shaft must be 10 mm, the housing bore 15 mm and the seat at least 4 mm deep. The radial thickness of the bearing is (15 - 10) / 2 = 2.5 mm, and this is also the wall of material that the shaft shoulder and the housing shoulder must support. The diameter tolerance is from -0.008 mm to 0 mm, so the fit of your parts must be precise.
Connection:
The product has no pins, is not powered and has no electrical connection. It is mounted mechanically, and the table below shows which parts each side of the bearing joins with.
| Product pin | Connects to | Role |
|---|---|---|
| Inner ring (10 mm) | Shaft with 10 mm diameter | Rotates together with its shaft or stays still, depending on the application. |
| Outer ring (15 mm) | 15 mm bore in the housing or pulley | Rests in the outer part. |
| Thickness 4 mm | Seat with a depth of at least 4 mm | Sets the position of the bearing along the shaft. |
Configuration:
The bearing has no buttons, potentiometers, jumpers, switches, LEDs or display and has no settings. The only choices are the fit on the shaft, the fit in the housing and the method of fixing along the shaft.
For hobby projects, the simplest option is a shaft that fits into the inner ring with a light interference fit and a housing in which the outer ring fits with a light interference fit or with almost no clearance.
| Parameter | Value | Note |
|---|---|---|
| Inner diameter | 10 mm | Diameter of the shaft it is mounted on. |
| Outer diameter | 15 mm | Diameter of the bore in the housing. |
| Thickness | 4 mm | Minimum depth of the seat. |
| Sealing | ZZ, metal shields on both sides | Protects against large particles, not against liquids. |
Usage example:
The example is a free-running pulley on a 10 mm shaft, for example a guide roller for a belt or wire. You need a 10 mm shaft with a support shoulder, a 6700ZZ bearing, a retaining ring and a pulley with a 15 mm seat and a depth of 4 mm.
The first step is pressing the bearing into the pulley seat, pressing on the outer ring until the bearing touches the bottom of the seat.
The second step is inserting the shaft through the inner ring, pressing only on the inner ring, until the shaft rests on the shoulder.
The third step is fixing the shaft with the retaining ring, without tightening the inner ring too hard.
The last step is turning the pulley by hand. It must rotate smoothly, without jamming, without side play and without friction noise, and the shaft must not move in the bearing.
Common problems:
The bearing turns with difficulty after mounting. The most common cause is pressing through the wrong ring or a housing that is too tight, which compresses the outer ring. Remove the bearing, check the bore with a caliper, enlarge it slightly or remake the part, then press only on the correct ring.
The bearing has play in the housing and turns together with the shaft. The cause is a bore that is too large or a shaft that is too thin. Remake the part with the correct dimensions or fix the ring that must stay still with an adhesive for cylindrical parts.
A friction or grinding noise can be heard. The cause may be dirt that got in past the shield or an inclined mounting. Dismount the bearing, clean the area, check that the shaft is straight and mount the part again, pressing evenly.
The bearing has seized or rusted. The cause is contact with water or humidity, because the metal shields do not seal completely. Replace the bearing and protect the seat with a cover or a gasket in the housing.
The bearing heats up during operation. The cause may be a speed that is too high, an axial load that is too high or dry grease. Check that the force is transmitted radially, reduce the speed or replace the bearing.
Limitations and tips:
The 6700ZZ is a thin radial bearing, intended mainly for radial loads. Large axial loads, shocks and very high speeds reduce its service life, and the metal shields do not make it suitable for environments with water or fine dust. For such conditions, choose a bearing with rubber seals or provide protection in the housing.
Never press the bearing through the wrong ring and never hit it directly with a hammer. Besides pulleys and guide rollers, the bearing can be used to support shafts in robot mechanisms, fans and small motors, as long as the dimensions of 10, 15 and 4 mm are respected.
