1.Cylindrical roller bearings have no ribs on either the inner or outer ring, so the
rings can move axially relative to each other. These can be used as free-end
bearings. Cylindrical roller bearings, in which either the inner or outer rings has
two ribs and the other ring has one, are capable of taking some axial load in one
direction Double-row cylindrical roller bearings have high radial rigidity and are
used primarily for precision machine tools.
2.Cylindrical roller bearings are available in many designs, series and sizes.
The majority are single row bearings with a cage. High-capacity bearings, single
and double row full complement bearings (without a cage) complete the
international standard assortment listed.
3.The range of cylindrical roller bearings comprises the basic types :
single row cylindrical roller bearings, caged, mainly of the NU, NJ, NUP and N designs
double row cylindrical roller bearings, caged, mainly of the NNU and NN designs
multi-row cylindrical roller bearings, caged
single row full complement cylindrical roller bearings, mainly of the NCF and NJG designs
double row full complement cylindrical roller bearings, mainly of the NNF design
multi-row full complement cylindrical roller bearings, with four or eight rows of rollers
Types NU, N, NNU, and NN are suitable as free-end bearings. Types NJ and NF can
sustain limited axial loads in one direction. Types NH and NUP can be used as
fixed-end bearings.
NH-type cylindrical roller bearings consist of the NJ-type cylindrical roller bearings
and HJ-type L-shaped thrust collars.
The inner ring loose rib of an NUP-type cylindrical roller bearing should be mounted
so that the marked side is on the outside
4.Application of cylindrical roller bearings:
Cylindrical roller bearings are used in a variety of applications. Examples include
mining, petroleum production, power generation, power transmission, cement
processing, aggregate crushing, and metal recycling. Some cylindrical roller
bearings are used in briquetting machines, rubber mixing equipment, rolling mills,
rotary dryers, or pulp and paper machinery. Others are used in construction
equipment, crushers, electric motors, blowers and fans, gears and drives, plastics
machinery, machine tools and traction motors and pumps.
5.Features and Benefits of Cylindrical Roller Bearings:
1.) Offers a complete range, both metric and inch sizes available in metric and
imperial bore sizes ranging from 12 to 1320 mm.
2.)High radial load capacity - making cylindrical roller bearings suitable for high
speed applications.
3.)Designs - designated NU, NJ, NUP, N or NF for single row bearings and NNU or
NN for double row types, defines the bearing ring rib configuration.
4.) Cages - Available with pressed steel, machined brass and polyamide cages
throughout the range.
5.) Special designs - manufactures a range of four-row cylindrical roller bearings,
primarily designed for use as steel mill roll-neck bearings.
6.)Bearings are also available with both lubrication holes and a machined
lubrication groove on the outside surface of the outer ring.
6.Pictures for your reference.
7. Advantage of our company:
Accept little order. Even you order very small bearings, we can send to you
Free samples. If you want to check quality or package, we can send you some samples for free
Quick quotating price. When we get your inquiry, we will quote immediately
Good quality. We can guarantee the quality is the best. Not only samples, but also products.
Fast delivery. After you place order, we can prepare bearings soon, and send out at the same day. We have large quantity bearings in stock.
Cooperation Courier/shipping company. We have long time cooperate couriers, include DHL/FEDEX/TNT/EMS; and shipping company. can give you best freight price
Technical support. We have our own technicist, to promise good quality bearings
OEM sevice. We have our own factory, can supply OEM sevice, and accept your brand.
Much experience. Our company export bearings for many years, both brands bearings and our own bearings are saled to many countires. Win good reputations.
Carefully package. No one want to receive broken products. We can package bearings carefully, to insure both package box and bearings are no broken.