High speed handpiece dental bearing

This class bearing special bearings for Dental dentist phone, the inner and outer rings of refining 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.

The dental Bearing we made mark with several part number for different usage and dimension. Standard Width

is 2.38mm, no Side step, no Cover, has 8 Stainless steel Ball. Widen Version is 2.78mm (Mark as W); with

Side Step (Mark as K); with Cover (Mark as Z); with Ceramic Ball (Mark as N). All bearings can reach

35-40KRPH.(2.2-3.5GK air-press).

NO	PART NUMBER	DIMENSION	SPECIFICATION
NO	PART NUMBER	DIMENSION	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	6.35×6×3.175×2.38	SIDE STEP		√
6	SR144TLKN	6.35×6×3.175×2.38	SIDE STEP			√
7	SR144TLKZ	6.35×6×3.175×2.38	SIDE STEP	√	√
8	SR144TLKZN	6.35×6×3.175×2.38	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	6.35×6×3.175×2.78	SIDE STEP		√
14	SR144TLKNW	6.35×6×3.175×2.78	SIDE STEP			√
15	SR144TLKZW	6.35×6×3.175×2.78	SIDE STEP	√	√
16	SR144TLKZNW	6.35×6×3.175×2.78	SIDE STEP	√		√
17	SFR144TLZN	6.35×6×3.175×2.38	FLANGE	√		√
18	SFR144TLZ	6.35×6×3.175×2.38	FLANGE	√	√
19	SFR144TLZW	6.35×6×3.175×2.78	FLANGE	√	√
20	SFR144TLZWN	6.35×6×3.175×2.78	FLANGE	√		√
21	R2-5ZZ	7.938×3.175×3.571		√		√
22	CARTRIDGE WITH CERAMIC BALL		WRENCH CHUCK
22	CARTRIDGE WITH STELL BALL		WRENCH CHUCK
23	CARTRIDGE WITH CERAMIC BALL		PUSH CHUCK
23	CARTRIDGE WITH STELL BALL		PUSH CHUCK
Remark		S—STEEL RING TL—CAGE MATERIAL Z—SIGE COVER N—CERAMIC BALL
Remark		SR144—STANDARD K—SIDE STEP F—FLANGE