Solid Ribs Precision Roller Bearing P2 Double Cylindrical Roller Bearing NNU49/530 K/W33

Cylindrical Roller Bearing Double Row Outer rings With Solid Ribs NNU49/530 K/W33

Cylindrical rollers and raceways are linear contact bearings. Load capacity, mainly bear radial load. The friction between the rolling element and the retaining edge of the ring is small, which is suitable for high-speed rotation. According to whether the ring has ribs, it can be divided into single row cylindrical roller bearings such as NU, NJ, NUP, N, NF, and double row cylindrical roller bearings such as NNU and NN. The bearing has a separable structure with inner ring and outer ring.

NN type cylindrical roller bearings are equipped with ribs on the inner ring, NNU type bearings with ribs on the outer ring. The NN type is widely used, as initital running-in with grease lubrication is short, and oil is prevented from accumulating inside the bearing with oil lubrication.

Operating temperature:

Full complement cylindrical roller bearings are suitable for operating temperatures from –30 °C to +120 °C.

Main Features:

• Additional radial load-carrying capability compared to single-row product.
• Designed to ISO/DIN specified interchangeable dimensions.
• Sold as complete assembly.
• Outer rings with solid ribs.
• Lubrication grooves and holes on outer rings.
• One solid brass cage.

Suffix description

B - Present Standard Design With Brass Cage Of Double Pronged Type

K - Tapered Bore, Taper 1:12

W33 - Lubrication Groove And Three Holes In Bearing Outer Ring

SP - Special Precision Class For Machine Tool Bearings: Dimensional Accuracy Approximately To P5, Running Accuracy Approximately To P4

Double Row Cylindrical Roller Bearing, Outer rings With Solid Ribs Specifications: