NSK's main products are bearing, which is the basis of all machines; is indispensable in modern society products;
NSK bearing ring shape
K - tapered bore, taper 1:12.
K30 - tapered bore, taper 1:30.
E - Ring on incision or hole.
E4 - the outer ring with a fuel tank, oil hole.
N - outer diameter with a groove.
NR - outer diameter with a groove, snap ring.
NSK bearings and gaskets with
DB - million to help NSK bearings back to back pairs of electrical and mechanical installation.
DF - installed in pairs face to face.
DT - series installed in pairs.
+ K - outer ring with liner.
+ L - inner padded.
+ KL - inner and outer rings with a liner.
NSK bearing clearance
C1 - million to help up to the Electrical and Mechanical NSK Bearings Radial bearings radial clearance, clearance smaller than C2.
C2 - to the heart of the radial bearing clearance, smaller than the standard clearance.
CN (omitted) - Standard Radial Bearing radial clearance.
C3 - Radial Bearing radial clearance, clearance than the standard major.
C4 - Radial Bearing radial clearance, clearance than C3 large.
C5 - Radial Bearing radial clearance, clearance than C4 large.
CC1 - cylindrical roller bearings (not interchangeable) radial clearance, smaller than the CC2 clearance.
CC2 - cylindrical roller bearings (not interchangeable) radial clearance, smaller than the standard clearance.
CC - cylindrical roller bearings (not interchangeable) standard radial clearance.
CC3 - cylindrical roller bearings (not interchangeable) radial clearance, clearance than the standard major.
CC4 - cylindrical roller bearings (not interchangeable) radial clearance, clearance than CC3 large.
CC5 - cylindrical roller bearings (not interchangeable) radial clearance, clearance than CC4 large.
MC1 - small, miniature ball bearing radial clearance, clearance smaller than MC2.
MC2 - small, miniature ball bearing radial clearance, clearance smaller than MC3.
MC3 - small, miniature ball bearing radial clearance standards for clearance.
MC4 - small, miniature ball bearing radial clearance, clearance than MC3 large.
MC5 - small, miniature ball bearing radial clearance, clearance than the MC4 large.
MC6 - small, miniature ball bearing radial clearance, clearance than the MC5 large.
CM - motor with deep groove ball bearings, cylindrical roller bearing radial clearance.
CT - Motor cylindrical roller bearings with radial clearance
NSK Bearing Cage
M - copper alloy solid cage.
T - synthetic resin cage.
W - stamping cage.
V - no cage.
NSK bearing seals, dust cover
Z, ZS - side with steel dust cover.
ZZ, ZZS - both sides with steel dust cover.
D, DU - side with a contact rubber seals.
DD, DDU - both sides with contact rubber seals.
V - side with a non-contact rubber seals.
VV - sides with a non-contact rubber seals.
NSK bearing parts structure
More understanding of the bearing structure, we use the NSK bearings for the more easy. Now I have to tell us explain.
(1). Raceway raceway
Bear the load bearing part of the surface, for rolling the rolling track.
(2). Straight straight raceway raceway
Rolling direction in the plane perpendicular to the bus for the line within the raceway.
(3). Convexity crowned raceway raceway
The direction perpendicular to the rolling plane convex curve was continuous cylindrical or conical base roller to prevent the roller and raceway contact of stress concentration.
(4). Spherical roller spherical raceway
The ball raceway portion of the surface.
(5). Channel raceway groove
Ball bearing raceway groove shape, usually an arc-shaped cross section, slightly larger than the radius of its radius.
(6). (Groove) shoulder (groove) shoulder
Ditch (roll) side of road.
(7). Rib rib
Highlight the raceway surface and rolling in the direction parallel to the narrow shroud. To support and guide the rolling elements and keep it in the bearing.
(8). Guided cage cage riding land surface
Bearing rings and gaskets of cylindrical surface for guiding in the radial cage.
(9). Ring (gasket) end ring (washer) face
Perpendicular to the ring (washer) axis line of the ring (gasket) surface.
(10). Bearing bore bearing bore
Bearing inner ring bore or shaft.
(11). Cylindrical bore cylindrical bore
Bearing or bearing part of the inner hole, the bus was basically straight line or with the bearing axis parallel to the axis of bearing parts.
(12). Conical bore tapered bore
Bearing or bearing part of the inner hole, the bus was basically a straight line and with the bearing or bearing part axis line intersects the axis line.
(13). Bearing outer surface of the bearing outside surface
Bearing outer ring or the outer surface of seat.
(14). Ring (gasket) chamfer ring (washer) chamfer
Bearing bore or the outer surface of one end connected with the ring ring (gasket) surface.
(15). More groove grinding undercut process
Bearing in the bearing ring or washer or flange wall to facilitate grinding the root of the groove or slot opening.
(16). Seal (contact) surface sealing (conract) surface
With the ring sliding contact surface.
(17). Seals (dust cover) slot seal (shield) groove
To maintain the bearing seal (dust cover) of the slot.
(18.) Snap ring groove snap ring groove
To maintain the snap ring groove.
(19). Lubrication groove lubrication groove
The part in the bearing lubricant for the transmission slot.
(20). Lubrication hole lubrication hole
The bearing parts, and used to transport the lubricant holes on rolling.
(1) NSK bearing the internal structure
A - interior design and standards of different bearings.
A - angular contact ball bearings, contact angle of 30 degrees.
A5 - angular contact ball bearings, the contact angle of 25 degrees.
B - angular contact ball bearings, contact angle of 40 degrees.
C - angular contact ball bearings, the contact angle of 15 degrees.
C - tapered roller bearings, the contact angle of 20 degrees.
D - tapered roller bearings, the contact angle of 28 degrees.
C, CA (with brass, solid cage), CD (with stamping cage) - High load self-aligning roller bearings.
E - cylindrical roller bearings with high load.
H - high load thrust spherical roller bearings.
J - tapered roller bearing outer ring raceway of the small end diameter, angle, outer ring width and ISO provisions.
(2) NSK Bearings
g - ring, rolling body for the carburizing steel.
H - rings, rolling of stainless steel.
