Set of Trolleys Rollers for Sliding Gate 80x80 +25% Stronger Bearing

Trolley with 25% larger - stronger 6304 bearing.

• 6304 bearing instead of commonly used 6204
• 6304 bearing has 25% higher load capacity

Comparative bearing parameters

• 6304 - (dynamic load capacity) - 16.9 kN
• 6204 - (dynamic load capacity) - 13.4 kN
• 🔔PLUS More sealed against dirt and moisture bearings with 2RS seals instead of ZZ metal shields, providing much better protection for bearing balls
• Roller designed for Seger ring, not pressed in.

⏳ Details for those interested in technical parameters below, requires patient reading 2-3 minutes 😀

We use bearings with 2RS seals - butyl rubber, more sealed than ZZ - steel shield, because:

ZZ shield is classified as a non-contact shield (not a seal), while the rubber seal RS represents a group of contact seals. This type of 2RS seal contacts the bearing ring, providing better protection in contaminated environments than a metal shield.

1. Roller manufactured with super precision using the "so-called" hundredth method according to the classic bearing fitting technique.

CNC turned to standard "for bearing" (0.01 mm accuracy).

Bearing precisely fitted (pressed in with a press, the so-called "hundredth") and secured with a Seger retaining ring. This solution eliminates the undesirable phenomenon of bearing rotation inside the roller when loosely fitted and crimped.

In our roller, the bearing contacts the entire 15 mm width of the outer bearing ring to the inner surface of the roller, not only by a 1-1.5 mm crimp.

Our roller allows removing the Seger ring and extracting the bearing, unlike crimped ones.

2. Our roller has an increased width of 22 mm, providing a larger contact surface between the roller and the gate rail.

3. We designed and turned the roller to accommodate a larger 6304 bearing with 25% higher load capacity than standard. Available only from us.

Platform with washer under nuts - seemingly a small detail, but we provide washers only, exclusively with us.

A washer under the nut is a standard in fastener technology - it is obvious for every nut under a bolt to ensure proper clamping and prevent loosening of the connection.

• Trolleys designed using CAD/CAM software with a module for calculating acting forces and loads

2x 5-Roller Trolley for Sliding Gate on 80x80x5 mm Profile

Code: WBR.5BE+.80x5.S52

Set weight: 12 kg

Set intended for:

• Gate weight: up to 700 kg
• Opening width: 4-6 m

Enlarged platform 210 mm for more stable and wider mounting, not the basic 180 mm.

On explicit request described in Order Notes, we can assemble on 180 mm platforms if the trolley needs to fit an existing bolt spacing (replacement of old set).

For those interested, the European standard platform size 10 years ago was 210 or 250 mm for larger trolleys; the 180 mm size was "imposed cheaply" by Chinese products from Chinese importers.

2x trolley WBR.5B.80x5.210

• Gate weight: up to 700 kg
• Opening width: 4-7 m
• Rollers: 68.5 mm × 22 mm, steel, perfectly curved shape
• Platform: adjustable, 210 × 120
• Roller bearing: 6304 2RS, secured with Seger ring
• Coating: electro-galvanized

Genuine Polish product

Polish production from raw bar and sheet metal

... we are a Polish manufacturer, not a "Polish brand" of imported products.

IMPORTANT NOTICE

WE MEASURE THE PROFILE FROM THE OUTSIDE

THIS IS THE TYPE OF RAIL 80mm x 80mm ... WALL THICKNESS USUALLY 5mm, RARELY DIFFERENT, E.G. 4 mm

Please carefully check the dimensions of your rail (profile). We specify dimensions by giving the profile width from the outside and wall thickness (preferably measured with calipers)

Other Allegro listings also include sets with; socket, ramp roller, top roller, bracket.