3.175*6.35*2.78 mm SR144ZZ P4 grade stainless steel 50000 RPM
medical handpiece air turbine dental bearing This type bearing
special bearings for Dental dentist handpiece, the inner and outer
rings is AISI440 stainless steel (9Cr18Mo) material the ball
refined stainless steel (AISI440C) or a non-metallic super-hard
ceramic material (SI3N4), has good wear resistance cagethe imported
the TORLON or high-strength low-friction and self-lubricating
properties of polyimide material or 80 to 120 phenolic Textolite
material, bearing 200 ~ 250Kpa air pressure, the speed of up to 300
000 to 400 000 rpm. Under normal conditions of use, bearing the
working life of more than 6 months. The high-speed dentists
dedicated phone bearing manufacturing precision meets the P4 level
national standards GB/T307.1-2005 requirements can be applied to
different models at home and abroad dentists phone high-speed
grinder. more models :SFR144TLZ , SFR144TLZN , SFR144TLZW ,
SFR144TLZWN , SFR144TLZ1 , SFR144TLZ1N , SFR144TLZ1W , SFR144TLZ1WN
,SFR144K1TLZ , SFR144K1TLWZ , SFR144K1TLWZN , SFR144K1TLWZ1N ,
SFR144K2TLZ1 , SFR144K2TLZ1N , SFR144K2TLWZ1N , SR144TLZNW
,SR144TLZW , SR144TLWN , SR144TLKZN etc. Product's name
3.175*6.35*2.78 mm SR144ZZ P4 grade stainless steel 50000 RPM
medical handpiece air turbine dental bearing Model SR144ZZ
Size 3.175*6.35*2.78 mm Cage material TorLon(black) Ball material
Si3N4 ceramic Rotating speed 350000rpm-400000rpm Stock
Large SR144TLZWN for W&H (W&H handpiece TE-98 PB use) ,BIEN
AIR PRESTIGE PB
1Material
(Balls and Rings)Flanged outer ring featuresBasic Bearing
codeAngular contact bearing TypeMaterial(Cage)Appearance
featureMaterial (Closure)WidthMaterial (balls)Balls NumberBearings
of Dental Speed Handpiece Nnmbering
System12345678910SFR144K1K2TLTiTLKGZZ1WW02N(8) No:10(8)-8
balls are
taken;
Absence of symbol -7 balls are
taken. No:9N-Ball
material is
Si4N3;
Absence of symbol - Ball material is
9Cr18Mo(AISI440C). No:8W-Width
of both inner and outer ring are
2.78mm;
W02-Width of outer ring is 2.38mm and width of inner ring is
2.78mm(see figure
16);
Absence of symbol - Both inner and outer ring are
2.38mm. No:7Absence
of symbol -Open
Bearing.
Z-Bearing is with single shield(see figure
2);
Z1-Bearing outer and shield are integral (see figure
3). No:6K-Outer
rings with stage(see figure
11);
G-Outer rings with recess(see figure
21). No:5TL-Polyimide(Black);
Ti-Textolite.
TA-Textolite.Polyimide
(yellow); No:4Absence
of a symbol - Deep groove
bearing.
K1-Angular contact bearing with stepped inner ring (see
figure
4);
K2-Angular contact bearing with counterbored outer ring (see figure
5). No:3Basic
bearing
code(inch). No:21)When
width of outer ring is 2.38mm ,the width of capped edge is
0.6mm(see figure
6);
2) When width of outer ring is 2.78mm, the width of capped edge
0.8mm(see figure
6);
3)When outer ring is with recess ,the width of capped edge is
0.45mm(see
figure21). No:1S -Rings
and balls are made in 9Cr18Mo Stainless Stell
(AISI440C). NOPART
NUMBERDIMENSIONSPECIFICATIONOUT
RING COVERSTEEL BALLCERAMIC
BALL1SR144TL¢6.35×¢3.175×2.38 √ 2SR144TLN¢6.35×¢3.175×2.38 √3SR144TLZ¢6.35×¢3.175×2.38 √√ 4SR144TLZN¢6.35×¢3.175×2.38 √ √5SR144TLK¢6.35×¢5.98×¢3.175×2.38SIDE
STEP √ 6SR144TLKN¢6.35×¢5.98×¢3.175×2.38SIDE
STEP √7SR144TLKZ¢6.35×¢5.98×¢3.175×2.38SIDE
STEP√√ 8SR144TLKZN¢6.35×¢5.98×¢3.175×2.38SIDE
STEP√ √9SR144TLW¢6.35×¢3.175×2.78 √ 10SR144TLWN¢6.35×¢3.175×2.78 √11SR144TLZW¢6.35×¢3.175×2.78 √√ 12SR144TLZNW¢6.35×¢3.175×2.78 √ √13SR144TLKW¢6.35×¢5.98×¢3.175×2.78SIDE
STEP √ 14SR144TLKNW¢6.35×¢5.98×¢3.175×2.78SIDE
STEP √15SR144TLKZW¢6.35×¢5.98×¢3.175×2.78SIDE
STEP√√ 16SR144TLKZNW¢6.35×¢5.98×¢3.175×2.78SIDE
STEP√ √17SFR144TLZN¢6.35×¢7.518×¢3.175×2.38FLANGE√ √18SFR144TLZ¢6.35×¢7.518×¢3.175×2.38FLANGE√√ 19SFR144TLZW¢6.35×¢7.518×¢3.175×2.78FLANGE√√ 20SFR144TLZWN¢6.35×¢7.518×¢3.175×2.78FLANGE√ √21R2-5ZZ¢7.938×¢3.175×3.571 √ √Remark S-STEEL
RING TL-CAGE MATERIAL Z--SIGE
COVER N-CERAMIC
BALL SR144-STANDARD
K-SIDE STEP F-FLANGE Company
information:Changsha Terry Machinery Co.Ltd is a professional
supplier of bearings and transmission products.We are BV verified
supplier and 10 year golden supplier on alibaba. We are engaged in
bearing and transmission products exceeds 14 years now, our major
products ar
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