Complaint
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 features | Basic Bearing code | Angular contact bearing Type | Material(Cage) | Appearance feature | Material (Closure) | Width | Material (balls) | Balls Number | Bearings of Dental Speed Handpiece Nnmbering System | |||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | ||||||||||||||||
| S | F | R144 | K1 | K2 | TL | Ti | TL | K | G | Z | Z1 | W | W02 | N | (8) | ||||||||||
| No:10 | (8)-8 balls are taken; Absence of symbol -7 balls are taken. | ||||||||||||||||||||||||
| No:9 | N-Ball material is Si4N3; Absence of symbol - Ball material is 9Cr18Mo(AISI440C). | ||||||||||||||||||||||||
| No:8 | W-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:7 | Absence of symbol -Open Bearing. Z-Bearing is with single shield(see figure 2); Z1-Bearing outer and shield are integral (see figure 3). | ||||||||||||||||||||||||
| No:6 | K-Outer rings with stage(see figure 11); G-Outer rings with recess(see figure 21). | ||||||||||||||||||||||||
| No:5 | TL-Polyimide(Black); Ti-Textolite. TA-Textolite.Polyimide (yellow); | ||||||||||||||||||||||||
| No:4 | Absence 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:3 | Basic bearing code(inch). | ||||||||||||||||||||||||
| No:2 | 1)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:1 | S -Rings and balls are made in 9Cr18Mo Stainless Stell (AISI440C). | ||||||||||||||||||||||||
| NO | PART NUMBER | DIMENSION | SPECIFICATION | |||
| OUT RING | COVER | STEEL BALL | CERAMIC BALL | |||
| 1 | SR144TL | ¢6.35×¢3.175×2.38 | √ | |||
| 2 | SR144TLN | ¢6.35×¢3.175×2.38 | √ | |||
| 3 | SR144TLZ | ¢6.35×¢3.175×2.38 | √ | √ | ||
| 4 | SR144TLZN | ¢6.35×¢3.175×2.38 | √ | √ | ||
| 5 | SR144TLK | ¢6.35×¢5.98×¢3.175×2.38 | SIDE STEP | √ | ||
| 6 | SR144TLKN | ¢6.35×¢5.98×¢3.175×2.38 | SIDE STEP | √ | ||
| 7 | SR144TLKZ | ¢6.35×¢5.98×¢3.175×2.38 | SIDE STEP | √ | √ | |
| 8 | SR144TLKZN | ¢6.35×¢5.98×¢3.175×2.38 | SIDE STEP | √ | √ | |
| 9 | SR144TLW | ¢6.35×¢3.175×2.78 | √ | |||
| 10 | SR144TLWN | ¢6.35×¢3.175×2.78 | √ | |||
| 11 | SR144TLZW | ¢6.35×¢3.175×2.78 | √ | √ | ||
| 12 | SR144TLZNW | ¢6.35×¢3.175×2.78 | √ | √ | ||
| 13 | SR144TLKW | ¢6.35×¢5.98×¢3.175×2.78 | SIDE STEP | √ | ||
| 14 | SR144TLKNW | ¢6.35×¢5.98×¢3.175×2.78 | SIDE STEP | √ | ||
| 15 | SR144TLKZW | ¢6.35×¢5.98×¢3.175×2.78 | SIDE STEP | √ | √ | |
| 16 | SR144TLKZNW | ¢6.35×¢5.98×¢3.175×2.78 | SIDE STEP | √ | √ | |
| 17 | SFR144TLZN | ¢6.35×¢7.518×¢3.175×2.38 | FLANGE | √ | √ | |
| 18 | SFR144TLZ | ¢6.35×¢7.518×¢3.175×2.38 | FLANGE | √ | √ | |
| 19 | SFR144TLZW | ¢6.35×¢7.518×¢3.175×2.78 | FLANGE | √ | √ | |
| 20 | SFR144TLZWN | ¢6.35×¢7.518×¢3.175×2.78 | FLANGE | √ | √ | |
| 21 | R2-5ZZ | ¢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 | ||||||
