MSD MANUFACTURING CO.,LTD.

Super-Precision Cylindrical Roller Bearings

Super Precision Cylindrical Roller Bearings are designed specifically to handle large radial loads in high-speed spindle applications that demand high running accuracy (runout) of bearing-spindle arrangements.

This lineup of bearing includes a basic series that meets ISO standards and a specified series targeting machine tools.

A double-row cylindrical roller bearing series is available for applications requiring high rigidity. A single-row cylindrical roller bearing series is available for applications requiring high-speed performance.

A Robust™ series of high performance bearings is available for applications requiring both high-speed and high-rigidity performance.

120 mm x 180 mm x 46 mm skf NN 3024 TN9/SP Super-precision cylindrical roller bearings: Basic Static Radial Load Rating Co : 380000 N; Basic Dynamic Radial Load Rating C : 307000 N

360 mm x 480 mm x 118 mm skf NNU 4972 B/SPW33 Super-precision cylindrical roller bearings: Max operating temperature, Tmax : 200 °C; Radial clearance class : C3

500 mm x 670 mm x 170 mm skf NNU 49/500 BK/SPW33X Super-precision cylindrical roller bearings: Designation of housing : PG206-; T min. : -40 °C

600 mm x 800 mm x 200 mm skf NNU 49/600 BK/SPW33X Super-precision cylindrical roller bearings: H1 : 19 mm; N1 : 21 mm

380 mm x 520 mm x 140 mm skf NNU 4976 BK/SPW33 Super-precision cylindrical roller bearings: Inside Ring Outside Diameter : 88.5 mm; Dynamic Load Rating : 130,000 N

105 mm x 160 mm x 41 mm skf NN 3021 KTN9/SP Super-precision cylindrical roller bearings: d1 : 32.4 mm; C0 : 6.65 kN

380 mm x 520 mm x 140 mm skf NNU 4976 B/SPW33 Super-precision cylindrical roller bearings: Weight : 1.67 kg; H2 : 41 mm

260 mm x 360 mm x 100 mm skf NNU 4952 BK/SPW33 Super-precision cylindrical roller bearings: Bore Type : Cylindrical Bore; Enclosure : Double Seal

220 mm x 340 mm x 90 mm skf NN 3044 K/SPW33 Super-precision cylindrical roller bearings: db min : 55 mm; Nlim (oil) : 7,500 rpm

190 mm x 260 mm x 69 mm skf NNU 4938 B/SPW33 Super-precision cylindrical roller bearings: Designation of housing : PA206N-; Weight : 1.04 kg

240 mm x 360 mm x 92 mm skf NN 3048 K/SPW33 Super-precision cylindrical roller bearings: A : 49 mm; G : M6x1

300 mm x 420 mm x 118 mm skf NNU 4960 B/SPW33 Super-precision cylindrical roller bearings: d : 30.000 mm; Basic Dynamic Radial Load Rating C : 28100 N