STANDARD MODEL DETAIL
021.25.500
021/022 Series External Gear Double Row Ball Slewing Bearings catalogue reference data for first-stage engineering review and RFQ preparation.
External gearDouble row four-point contact ballRFQ ready
CATALOGUE PARAMETERS
021.25.500 technical reference
Use this page as a catalogue reference only. Catalogue dimensions are reference data and may extend beyond the current verified in-house machining range. Final manufacturing capability is confirmed against the customer drawing before quotation. Final quotation and production are confirmed by drawing, load case, material, heat treatment, tolerance, and documentation requirements.
Diameter definition: D is the outer diameter of the ring body and d is the inner diameter of the ring body. For external gear models, the gear is on the outer ring, so the real maximum outside envelope can be De, not D. The structure must leave clearance for Max OD = max(D, De).
Basic dimensions
- D - ring-body outside diameter
- 616 mm
- d - ring-body inside diameter
- 384 mm
- Height H
- 106 mm
- Envelope OD
- 644 mm
- Envelope bore
- 384 mm
- Weight
- 100 kg
Mounting data
- D1
- 580 mm
- D2
- 420 mm
- Mounting holes
- 20
- Hole diameter
- 18
- n1
- 4
Structure data
- D3
- 523 mm
- d1
- 518 mm
- H1
- 96 mm
- h
- 26
- b
- 60
- x
- 0.5
Gear and performance
- Gear type
- External gear
- Gear module m
- 5
- Gear diameter De
- 644 mm
- Teeth z
- 126
- Normalizing force
- 3.7
- Quenching force
- 5.2
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