Description
Brand - NADELLA
Item Number - RKYR 52 NADELLA
Category - Guide Rollers with Tapered Roller Bearing
Principal Dimensions & Load Ratings (Metric):
Dimension (De) - 52 mm
Dimension (d1) - 21 (H7) mm
Dimension (d) - M20 x 1.5
Dimension (T) - 19.1 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 (I1) - 14 mm
Dimension (M) - 28 mm
Dimension (SW1) - 8 mm
Dimension (SW2) - 30 mm
Dimension (k) - 1 mm
Dynamic Load (Cw*) - 41000 N
Radial Limit Load (Fr) - 11900 N
Axial Limit Load (Fr) - 4800 N
Life Coefficient (X) - 6 mm
Life Coefficient (Y) - 3.7 mm
Torque Wrench Settings** - 80 Nm
Weight - 0.6 kg
Other salient points to be noted:
* Cw basic load for 100 km
** The torque wrench settings are given for non-lubricated threads; for lubricated threads, multiply figure by 0.8
• Dimensions relating to the stainless-steel rollers (suffix NX)
• 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 dimension RKXR 110 C. Internal rolling elements in standard bearing steel
• The guide rollers are complete with self-locking washers and hexagonal nut (DIN 439B) for fitting
• Pressure angle α for load calculation: guide rollers RKY 40° – guide rollers RKX 45°
• The sides of the race are convex with radius R = 400
♦ ♦ Images are for representation purposes only
Item Number - RKYR 52 NADELLA
Category - Guide Rollers with Tapered Roller Bearing
Principal Dimensions & Load Ratings (Metric):
Dimension (De) - 52 mm
Dimension (d1) - 21 (H7) mm
Dimension (d) - M20 x 1.5
Dimension (T) - 19.1 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 (I1) - 14 mm
Dimension (M) - 28 mm
Dimension (SW1) - 8 mm
Dimension (SW2) - 30 mm
Dimension (k) - 1 mm
Dynamic Load (Cw*) - 41000 N
Radial Limit Load (Fr) - 11900 N
Axial Limit Load (Fr) - 4800 N
Life Coefficient (X) - 6 mm
Life Coefficient (Y) - 3.7 mm
Torque Wrench Settings** - 80 Nm
Weight - 0.6 kg
Other salient points to be noted:
* Cw basic load for 100 km
** The torque wrench settings are given for non-lubricated threads; for lubricated threads, multiply figure by 0.8
• Dimensions relating to the stainless-steel rollers (suffix NX)
• 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 dimension RKXR 110 C. Internal rolling elements in standard bearing steel
• The guide rollers are complete with self-locking washers and hexagonal nut (DIN 439B) for fitting
• Pressure angle α for load calculation: guide rollers RKY 40° – guide rollers RKX 45°
• The sides of the race are convex with radius R = 400
♦ ♦ Images are for representation purposes only




