
Images and technical specifications for item 5311NRZZG15.
PRODUCT INFORMATION
Description and selection guidance
NTN Bearing 5311NRZZG15 belongs to the Double Row Angular Contact Ball Bearings family. The technical tables below show the available dimensions, ratings, speeds and mounting limits for this item.
When requesting a quotation, provide the complete item number, required quantity and operating conditions so Cat Son can verify the configuration.
5311NRZZG15 specifications
TECHNICAL SPECIFICATIONS
- Brand / Manufacturer
- NTN
- d - Shaft bore diameter
- 55 mm
- D - Diameter outside
- 120 mm
- B - Width
- 49,2 mm
- d1 - Inner-ring outside diameter
- 75,2 mm
- D1 - Diameter rib/groove of outer ring
- 105 mm
- a - Load application point
- 61,2 mm
- α - Contact angle
- 25 °
- a min - Minimum groove position
- 3,86 mm
- a max - Maximum groove position
- 4,06 mm
- rs - Minimum fillet radius
- 2 mm
- rNs - Minimum fillet radius
- 1 mm
- D3 - Diameter groove base maximum
- 115,21 mm
- b min - Width groove minimum
- 3,1 mm
- b max - Width groove maximum
- 3,4 mm
- a - Distance to oil-injection hole
- 0,6 mm
- D4 max - Diameter outside maximum of retaining ring assembly
- 129,7 mm
- f - Retaining-ring thickness
- 2,77 mm
- Locking-ring reference
- R 120
- Bearing clearance
- CN
- Precision class
- P0
- Weight
- 2,11 kg
BEARING FREQUENCIES
- BPFO - Outer-ring characteristic frequency (60 rpm)
- 3,173 Hz
- BPFI - Inner-ring characteristic frequency (60 rpm)
- 4,827 Hz
- FTF - Cage characteristic frequency (60 rpm)
- 0,397 Hz
- BSF - Rolling-element characteristic frequency (60 rpm)
- 4,197 Hz
PRODUCT PERFORMANCE
- C - Basic dynamic load rating
- 98,6 kN
- C0 - Basic static load rating
- 78,8 kN
- Cu - Fatigue load limit
- 4,9 kN
- f0 - Factor
- 13.8
- N ref - Reference thermal speed
- 5000 tr/min
- N lim - Mechanical limiting speed
- 4400 tr/min
- Tmin - Minimum operating temperature
- -20 °C
- Tmax - Maximum operating temperature
- 120 °C
LIMITS
- da min - Minimum shoulder diameter IR
- 64 mm
- da max - Maximum shoulder diameter IR
- 75,2 mm
- Da max - Maximum shoulder diameter OR
- 111 mm
- Ca min - Minimum segment position
- 6,58 mm
- Ca max - Maximum segment position
- 6,88 mm
- ra max - Maximum fillet radius shaft & housing
- 2 mm
- rNa max - Maximum fillet radius on the segment side
- 1 mm
- Db min - Minimum stop-ring position diameter
- 131,5 mm
NTN ITEM SUPPORT
Send the current item and operating conditions.
Cat Son can compare dimensions, design and mounting conditions before quotation.

