STANDARD MODEL DETAIL
021.30.1120
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
021.30.1120 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
- 1262 mm
- d - ring-body inside diameter
- 978 mm
- Height H
- 124 mm
- Envelope OD
- 1318 mm
- Envelope bore
- 978 mm
- Weight
- 340 kg
Mounting data
- D1
- 1218 mm
- D2
- 1022 mm
- Mounting holes
- 36
- Hole diameter
- 22
- n1
- 6
Structure data
- D3
- 1149 mm
- d1
- 1143 mm
- H1
- 114 mm
- h
- 29
- b
- 80
- x
- 0.5
Gear and performance
- Gear type
- External gear
- Gear module m
- 10
- Gear diameter De
- 1318 mm
- Teeth z
- 129
- Normalizing force
- 10
- Quenching force
- 14
SEND YOUR DRAWING
Need a slewing bearing quotation?
Upload your drawing, part number, sample data, or application requirement. MERYDOM will review manufacturability and provide a quotation.