Basic Info.
Model NO.:      681
Export Markets:      Global
Additional Info.
Trademark:      KOYO, NACHI, NSK, NTN, SKF
Packing:      Standard Packaging or as Customer′s Request
Standard:      Standard
Origin:      Jiangsu, China(Mainland)
HS Code:      8482102000
Production Capacity:      50, 000PCS/Month
Product Description

Structure: Deep Groove
Type: Ball
Model Number: 681
ID (inner diameter)/Bore: 1mm;
OD (outer diameter): 3mm;
Width/Height/Thickness: 1mm;
Precision Rating: ABEC-3
Seals Type: Double-sided metal dust cover
Number of Row: Single Row
Material: Chrome steel
Characteristic: High speed and low noise
Lubrification: Grease lubricated
MOQ: As per the requirement of customers


Service: OEM or as your demand
Delivery Detail: 3-7 days or according to order qty
Package: Standard packaging or as customer's request
Sample: Free provide
Delivery Detail: Within 3-5 days after your payment received
Payment: A: 30% deposit By T/T, Western Union, Paypal, 70% T/T against the copy of B/Lbefore delivery.
B: 100% L/C at sight



Miniature Bearings Metric Series Open: Bore sizes 1mm to 9mm
Inch Series Open: Bore sizes 0.0781 to 0.375 inches

Miniature Bearings Metric Series Shielded: Bore sizes 1mm to 10mm
Inch Series Shielded: Bore sizes 0.0781 to 0.375 inches

Miniature Bearings Metric Series Flanged: Bore sizes 2mm to 12mm
Inch Series Bore sizes 0.0781 to 0.375 inches

Miniature Bearings Unflanged Extended Inner 0.0469 to 0.3125 inches

Miniature Bearings Unflanged Extended Inner 0.0469 to 0.3125 inches

TYPE	Size	Designation
Metric Open	Bore Size:from 1mm to 15mm	MR,67,68,69series
Metric Shielded	Bore Size:from 1mm to 15mm	MR,67,68,69series
Metric Flanged	Bore Size:from 1mm to 15mm	MF,F67,F68,F69series
Inch Open	Bore sizes 0.0781 to 0.375 inches	R series
Inch Shielded	Bore sizes 0.0781 to 0.375 inches	R series
Inch Flanged	Bore sizes 0.0781 to 0.375 inches	FR series
Unflanged Extended Inner	Bore sizes 0.0469 to 0.3125 inches	RW
Flanged Extended Inner	Bore sizes 0.0469 to 0.3125 inches	FRW