Page 2825 - Benma | Blue book 5.0

Parts for machine construction Tel. +41 44 736 63 63 • Fax +41 44 736 63 00 • sales@brw.ch
7 66605 Needle roller bearings SKF
without inner ring
Needle roller bearings type RNA 49, RNA 69, NK and NKS
Needle roller bearings with raceways made of carbon chromium bearing steel are bearings with a low sectional height and a relatively high load
carrying capacity. Bearings without an inner ring are an excellent choice for bearing arrangements, if the shaft can be hardened and ground.
Since the inner ring is dispensed with, the shaft can be designed stronger and even more rigid as a result. In addition, the axial displaceability of
the shaft relative to the housing is contingent solely on the width of the shaft‘s raceway.
The bearings with flanges on the outer ring are designed primarily as single-row bearings. In every instance the outer ring, needle rollers and
cage constitute a self-retaining unit. Bearings of the RNA 49 series are also available with contact seals (suffix 2RS). This provides the bearings
with effective protection against infiltration of pollutants and against leakage of lubrication grease.
Main dimensions: ISO 15:2011 / DIN 620:2000 / ISO 1206:2001 / DIN 617:1993 at the bearings with row (R)NA 48, (R)NA 49 und (R)NA 69
Prefixes:
RNA 49 / RNA 69 Needle roller bearings with flanges on the outer ring, without inner ring
NK / NKS Needle roller bearings with flanges on the outer ring, without inner ring
Suffixes:
2RS Sheet steel reinforced contact seals of acrylonitrile-butadiene rubber (NBR) on both side
TN Injection moulded cage of polyamide 66, the cage is glass fibre reinforced

Order ID Type d D B Charge de base dyn. Charge de base stat. Vitesse limite
mm mm mm kN kN min -1
766605.0050 NK 5/10 TN 5 10 10 2.29 2 40‘000
766605.0100 NK 6/10 TN 6 12 10 2.55 2.36 38‘000
766605.0150 NK 6/12 TN 6 12 12 3.3 3.2 38‘000
766605.0200 NK 7/10 TN 7 14 10 2.81 2.75 36‘000
766605.0250 NK 7/12 TN 7 14 12 3.58 3.75 36‘000
766605.0300 NK 8/12 TN 8 15 12 3.8 4.25 36‘000
766605.0350 NK 8/16 TN 8 15 16 5.01 5.85 36‘000
766605.0400 NK 9/12 TN 9 16 12 4.4 5.2 34‘000
766605.0450 NK 10/12 TN 10 17 12 4.57 5.7 32‘000
766605.0500 NK 10/16 TN 10 17 16 5.94 8 32‘000
766605.0550 NK 12/12 12 19 12 6.71 8.15 30‘000
766605.0600 NK 12/16 12 19 16 9.13 12 30‘000
766605.0650 RNA 4900 14 22 13 8.8 10.4 28‘000
766605.0700 RNA 4900.2RS 14 22 13 7.37 8.15 12‘000
766605.0750 NK 14/16 14 22 16 10.2 12.5 28‘000
766605.0800 NK 14/20 14 22 20 12.8 16.6 28‘000
766605.0850 NK 15/20 15 23 20 13.8 18.3 26‘000
766605.0900 RNA 4901.2RS 16 24 13 8.09 9.65 11‘000
766605.0950 NK 16/16 16 24 16 11.7 15.3 26‘000
766605.1000 NK 16/20 16 24 20 14.5 20 26‘000
766605.1050 RNA 6901 16 24 22 16.1 23.2 26‘000
766605.1100 NK 17/16 17 25 16 12.1 16.6 26‘000
766605.1150 NK 17/20 17 25 20 15.1 22 26‘000
766605.1200 NK 18/20 18 26 20 16.1 23.6 24‘000
766605.1250 NK 19/20 19 27 20 16.5 25.5 24‘000
766605.1300 RNA 4902 20 28 13 11.2 15.3 22‘000
766605.1350 RNA 4902.2RS 20 28 13 9.13 12 9‘500
766605.1400 NK 20/16 20 28 16 13.2 19.3 22‘000
766605.1450 NK 20/20 20 28 20 16.5 25.5 22‘000
766605.1500 RNA 6902 20 28 23 17.2 27 22‘000
766605.1550 RNA 4903 22 30 13 11.4 16.3 20‘000
766605.1600 NK 22/16 22 30 16 14.2 21.6 20‘000
766605.1650 NK 22/20 22 30 20 17.9 29 20‘000
766605.1700 NK 24/16 24 32 16 15.4 24.5 19‘000
766605.1750 NK 24/20 24 32 20 19 32.5 19‘000
766605.1800 NK 25/16 25 33 16 15.1 24.5 18‘000
766605.1850 NK 25/20 25 33 20 19 32.5 18‘000
766605.1900 RNA 4904 25 37 17 21.6 28 17‘000
766605.1950 RNA 4904.2RS 25 37 17 19.4 22.4 7‘500
766605.2000 NKS 25 25 38 20 27.5 36 17‘000
766605.2050 NK 26/20 26 34 20 19.4 34.5 17‘000
766605.2100 NK 28/20 28 37 20 22 36.5 16‘000
766605.2150 RNA 69/22 28 39 30 36.9 57 15‘000
766605.2200 NK 30/20 30 40 20 25.1 44 15‘000
766605.2250 NK 30/30 TN 30 40 30 36.9 72 15‘000
766605.2300 RNA 4905 30 42 17 24.2 34.5 15‘000
766605.2350 RNA 4905.2RS 30 42 17 21.6 27.5 6‘300
766605.2400 NKS 30 30 45 22 31.9 43 14‘000
766605.2450 NK 32/20 TN 32 42 20 26.4 48 14‘000
766605.2500 NKS 32 32 47 22 34.1 46.5 13‘000
766605.2550 NK 35/20 TN 35 45 20 27.5 52 13‘000

2814 Brütsch/Rüegger Tools Ltd. • Heinrich Stutz-Strasse 20 • P.O. Box • CH-8902 Urdorf • www.brw.ch