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Description
Brand - NADELLA
Item Number - RKUR 55 NADELLA
Category - Guide Roller with Tapered Roller Bearing (Eccentric)
Principal Dimensions & Load Ratings (Metric):
Dimension (De) - 55 mm
Housing Bore (d1) - 21 (H7) mm
Dimension (d) - M20 x 1.5
Dimension (T) - 14.6 mm
Dimension (m) - 19.8 mm
Minimum Dimension (S) - 15 mm
Dimension (P) - 13.4 mm
Dimension (L) - 73 mm
Dimension (A) - 35 mm
Dimension (B) - 41 mm
Dimension (l1) - 14 mm
Dimension (M) - 28 mm
Dimension (SW1) - 8 mm
Dimension (SW2) - 30 mm
Dimension (k) - 1 mm
Dynamic Load (Cw*) - 42000 N
Radial Load Limit (Fr) - 11900 N
Axial Load Limit (Fa) - 3900 N
Life Coefficient (X) - 1 mm
Life Coefficient (Y) - 4 mm
Torque Wrench Settings** - 80 Nm
Weight - 0.6 kg
Other salient points to be noted:
• Standard seals: material NBR, RS type
• On request, the guide rollers can be supplied with external parts in stainless steel (suffix NX) and with Viton seals for operating temperatures up to 120°C (suffix V, not available for RKUR 115). Internal rolling elements in standard bearing steel
• The guide rollers include self-locking washers and hexagonal nut (DIN 439B) for fitting
• Pressure angle α for load calculation: 45°
• The sides of the race are convex with radius R = 400
* Cw basic load for 100 km
** The torque wrench settings are given for non-lubricated threads; for lubricated threads, multiply figure by 0.8
♦ ♦ Images are for representation purposes only
Item Number - RKUR 55 NADELLA
Category - Guide Roller with Tapered Roller Bearing (Eccentric)
Principal Dimensions & Load Ratings (Metric):
Dimension (De) - 55 mm
Housing Bore (d1) - 21 (H7) mm
Dimension (d) - M20 x 1.5
Dimension (T) - 14.6 mm
Dimension (m) - 19.8 mm
Minimum Dimension (S) - 15 mm
Dimension (P) - 13.4 mm
Dimension (L) - 73 mm
Dimension (A) - 35 mm
Dimension (B) - 41 mm
Dimension (l1) - 14 mm
Dimension (M) - 28 mm
Dimension (SW1) - 8 mm
Dimension (SW2) - 30 mm
Dimension (k) - 1 mm
Dynamic Load (Cw*) - 42000 N
Radial Load Limit (Fr) - 11900 N
Axial Load Limit (Fa) - 3900 N
Life Coefficient (X) - 1 mm
Life Coefficient (Y) - 4 mm
Torque Wrench Settings** - 80 Nm
Weight - 0.6 kg
Other salient points to be noted:
• Standard seals: material NBR, RS type
• On request, the guide rollers can be supplied with external parts in stainless steel (suffix NX) and with Viton seals for operating temperatures up to 120°C (suffix V, not available for RKUR 115). Internal rolling elements in standard bearing steel
• The guide rollers include self-locking washers and hexagonal nut (DIN 439B) for fitting
• Pressure angle α for load calculation: 45°
• The sides of the race are convex with radius R = 400
* Cw basic load for 100 km
** The torque wrench settings are given for non-lubricated threads; for lubricated threads, multiply figure by 0.8
♦ ♦ Images are for representation purposes only



