Optimum rollers for maximum loads and particularly high requirements:
- Roller tube turned (machined), surface quality Ra= 12.5 µm, manufactured from longitudinally welded steel tube acc. to EN 10305-3,
restricted tolerances (Küpper standard), steel S235JR acc. to EN 10025-2; - Concentricity ≤ 0.2 mm/m (average value of the total delivery)
- Forged bearing housing made of steel C15 acc. to EN 10267-2 or S235JR acc. to EN 10025-2
- Fit of the bearing seat in the bearing housing is IT7 acc. to EN ISO 286-1
- Shafts made from solid material acc. to EN 10083-2 or bending resistant hollow shaft made from precision tube with welded-in shaft ends
- Fit of the bearing seat on the shaft is IT6 acc. to EN ISO 286-1
- Deep groove ball bearing AKT acc. to DIN 625-1, 2Z shields, plastic cage, lubricated for life, greasing designed for specific applications
- Deep groove ball bearings 6306 - 6312
- Deep groove ball bearings ISO tolerance class PS acc. to DIN 620-2
- Radial internal clearance for deep groove ball bearings C4H acc. to DIN 620-4
- Spherical roller bearings AKT acc. to DIN 635-1, with cage made of steel or brass, greasing designed for specific applications
- Spherical roller bearings 21312 or 22312
- Spherical roller bearings ISO tolerance class P0 acc. to DIN 620-2
- Radial internal clearance for spherical roller bearings C3 acc. to DIN 620-4
- Additional inner seal made of high-quality material
- QLR hybrid seal: patented, lubricated for life, particularly effective when exposed to splash water and dust
- Additional seal (dust cover, rain protection cap and roller protector) for extreme conditions
- Optionally with weather shield (protection against blocking of the roller by jammed stones)
- Sound-optimized thanks to special sound insulating ring
- Balancing quality class ≤ G14 acc. to ISO 1940
Bearing size | |||||||
6306 | 6308 | 6310 | 6312 | 21312 | 22312 | ||
Roller diameter ØD [mm] | 63.5 | ||||||
88.9 | |||||||
101.6 | ⏺ | ⏺ | |||||
108 | ⏺ | ⏺ | |||||
127 | ⏺ | ⏺ | |||||
133 | ⏺ | ⏺ | ⏺ | ||||
139.7 | ⏺ | ⏺ | ⏺ | ||||
152.4 | ⏺ | ⏺ | ⏺ | ||||
159 | ⏺ | ⏺ | ⏺ | ⏺ | ⏺ | ⏺ | |
177.8 | ⏺ | ⏺ | ⏺ | ⏺ | ⏺ | ⏺ | |
193.7 | ⏺ | ⏺ | ⏺ | ⏺ | ⏺ | ||
203.2 | ⏺ | ⏺ | ⏺ | ⏺ | |||
219.1 | ⏺ | ⏺ | ⏺ | ⏺ |
Further versions on request.
Your contact person
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Idlers sales
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+49 (2041) 177 - 227
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Idlers and conveyor belt rollers
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+49 (2041) 177 - 0