KR52-PP

Yoke type track roller

Stud type track rollers KR..-PP, with axial guidance, plastic axial plain washers on both sides, optimized INA-profile

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Main Dimensions & Performance Data

D	52 mm	Outside diameter
d₁	20 mm	Fit diameter of roller stud / stud
B	66 mm	Width of the roller stud
C_{r w}	16,700 N	Basic dynamic load rating, radial
C_{0r w}	29,500 N	Basic static load rating, radial
C_{ur w}	3,850 N	Fatigue load limit, radial
n_{D G}	2,400 1/min	Speed on permanent grease lubrication
≈m	442 g	Weight

Dimensions

B₁	25.6 mm	Maximum witdh of thrust washer
B₂	40.5 mm	Bolt/stud length effectively
B₃	9 mm	Distance to lubrication hole
C	24 mm	Width, outer ring
C₁	0.8 mm	Protrusion outer ring to thrust washer
r_min	1 mm	Minimum chamfer dimension
d₂	36.5 mm	Stop diameter of thrust washer
d₃	4 mm	Diameter lubrication hole
G	M20X1,5	Thread
I_G	21 mm	Thread length
W	10 mm	Width of flats

Additional information

	NIPA2X7,5	Drive-fit lubrication nipple
M_A	120 Nm	Tightening torque nut

Downloads:

Your current product variant

Sealing	PP	Three-stage sealing by plastic axial plain washer on both sides
Outer Ring profile		Optimized INA-profile
Grease nipples		Drive-fit lubrication nipple unmounted 2x
Relubrication feature		Via head, stud and fit
Assembling aid head		Hexagon socket
Mounting aid stud		Hexagon socket

Characteristics

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