d - 280 mm

D - 380 mm

B - 100 mm

D₁ - 345.6 mm

F - 312 mm

b - 13.9 mm

K - 3 mm

r_1,2 - min. - 2.1 mm

r_3,4 - min. - 1.1 mm

s - 4.5 mm

d_a - min. - 291 mm

d_a - max. - 308 mm

D_a - max. - 369 mm

r_a - max. - 2 mm

d_n - 313.5 mm

Basic dynamic load rating - C - 765 kN

Basic static load rating - C₀ - 1800 kN

Fatigue load limit - P_u - 170 kN

Limiting speed for grease lubrication - 1900 r/min

Limiting speed for oil lubrication - 2200 mm/min

G_ref - 384 cm

Mass bearing - 32.5 kg

• Model Number:NNU 4956 BK/SPW33
• Inner Diameter：280mm Outer Diameter：380mm Width：100mm
• Type：Cylindrical Roller Bearings
• Update date：2025-12-09
• Application:plastic molding,sleep monitoring,Reflective Materials Industrial fabrics,preservation equipment,miscellaneous instruments,metering pump,Machine Tool Accessories,industrial skin care,dynamic blood pressure,axle lathe,Industrial
• Similar models:ISO NN4956K SKF NNU4956BK/SPW33 NTN NNU4956K NTN NNU4956C1NAP4 NSK NNU4956K NSK RSF-4956E4 NKE NNCF4956-V ISO NNC4956V ISB NNU4956K/SPW33 ISO NNCL4956V
• BEARING POWER International Trading Co.,Ltd. specialize in NNU4956BK/SPW33 products，there is large inventory of SKF NNU 4956 BK/SPW33 . We has been built up long-term cooperation with SKF company, could make a bulk order of the NNU 4956 BK/SPW33 Which SKF NNU4956BK/SPW33 is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express.Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

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